HTE Labs - AN106 Physical properties of miscelaneous chemicals and elements
 
 
AN106 Physical properties of miscelaneous chemicals and elements
 
 

Materials and Chemical Elements

Materials and Chemical Elements
idxSymbolNameNumberPeriodGroupChem_seriesCAS_numberMassMassUnitElement_categoryGroup_period_blockStd_atomic_weightElectron_configurationElectrons per shellAppearancePhaseRhoRho_TmeltTmeltTboilTsubTriple_pointCritical_pointSpecific_heat_capacityHeat_of_fusionHeat_of_vaporizationKtRhoElEg_300KOxidation_statesElectronegativityIonization_energiesCovalent_radiusR_Van_der_WaalsCrystal_structureMagnetic_orderingVsoundThermal_expansionAtomic_radiusEyoungShear_modulusBulk_modulusMohs_hardnessPoisson_ratioVickers_hardnessBrinell_hardnessElectron_affinity
1AcActinium897Actinoid7440-34-8227.0278g/mactiniden/a, 7, f(227) g·mol−1[Rn] 6d1 7s22, 8, 18, 32, 18, 9, 2solid10 g/cc(circa) 1323 K, 1050 °C, 1922 °F3471 K, 3198 °C, 5788 °F(25 °C) 27.2 J/molK14 kJ/mol400 kJ/mol(300 K) 12 W/mK3 (neutral oxide)1.11st: 499 kJ/mol215 pmface-centered cubicno data
2AgSilver47511Transition metal7440-22-4107.8682(2)g/mtransition metals107.8682(2) g·mol−1[Kr] 4d10 5s12, 8, 18, 18, 1silver, lustrous white metalsolid10.49 g/cc9.320 g/cc1234.93 K (961.78 °C, 1763.2 °F)2435 K (2162 °C, 3924 °F)(25 °C) 25.350 J/molK11.28 kJ/mol250.58 kJ/mol(300 K) 429 W/mK(20 °C) 15.87 n Ωm1, 2, 3 (amphoteric oxide)1.931st: 731.0 kJ/mol145±5 pm172 pmface-centered cubicdiamagnetic(r.t.) 2680 m·s−1(25 °C) 18.9 µm/mK144 pm83 GPa30 GPa100 GPa2.50.37251 MPa24.5 MPa
3AlAluminium13313Poor metal7429-90-526.9815386(8)g/mpoor metal13, 3, p26.9815386(13) g·mol−1[Ne] 3s2 3p12, 8, 3solid2.70 g/cc2.375 g/cc933.47 K, 660.32 °C, 1220.58 °F2792 K, 2519 °C, 4566 °F(25 °C) 24.200 J/molK10.71 kJ/mol294.0 kJ/mol(300 K) 237 W/mK(20 °C) 28.2 nΩm3, 2, 1 (amphoteric oxide)1.611st: 577.5 kJ/mol121±4 pmface-centered cubicparamagnetic(r.t.) (rolled) 5,000 m·s−1(25 °C) 23.1 µm/mK143 pm70 GPa26 GPa76 GPa2.750.35167 MPa245 MPa
4AmAmericium957Actinoid7440-35-9243.0614g/mactiniden/a, 7, f(243) g·mol−1[Rn] 5f7 7s22, 8, 18, 32, 25, 8, 2solid12 g/cc1449 K, 1176 °C, 2149 °F2880 K, 2607 °C, 4725 °F(25 °C) 62.7 J/molK14.39 kJ/mol(300 K) 10 W/mK6, 5, 4, 3, 2 (amphoteric oxide)1.31st: 578 kJ/mol180±6 pmhexagonalno data173 pm
5ArArgon18318Noble gas7440–37–139.948(1)g/mnoble gases18, 3, p39.948(1) g·mol−1[Ne] 3s2 3p62, 8, 8gas1.784 g/L83.80 K, −189.35 °C, −308.83 °F87.30 K, −185.85 °C, −302.53 °F83.8058 K (-189°C), 69 kPa150.87 K, 4.898 MPa(25 °C) 20.786 J/molK1.18 kJ/mol6.43 kJ/mol(300 K) 17.72x10-3 W/mKno data1st: 1520.6 kJ/mol106±10 pm188 pmface-centered cubicdiamagnetic(gas, 27 °C) 323 m/s
6AsArsenic33415Metalloid7440-38-274.92160(2)g/mmetalloid15, 4, p74.92160(2) g·mol−1[Ar] 4s2 3d10 4p32, 8, 18, 5solid5.727 g/cc5.22 g/cc887 K, 615 °C, 1139 °F1090 K (817°C), 3628 kPa1673 K, ? MPa(25 °C) 24.64 J/molK(grey) 24.44 kJ/mol? 34.76 kJ/mol(300 K) 50.2 W/mK(20 °C) 333 nΩm5, 3, 2, 1, -3 (mildly acidic oxide)2.181st: 947.0 kJ/mol119±4 pm185 pmrhombohedraldiamagnetic119 pm8 GPa22 GPa3.51440 MPa
7AtAstatine85617Halogen7440-68-8209.9871g/mhalogens17, 6, p(210) g·mol−1[Xe] 4f14 5d10 6s2 6p52, 8, 18, 32, 18, 7solid575 K, 302 °C, 576 °F610 K, 337 °C, 639 °F40 kJ/mol(300 K) 1.7 W/mK±1, 3, 5, 72.21st: 890±40 kJ/mol150 pmno data
8AuGold79611Transition metal7440-57-5196.966569(4)g/mtransition metals196.966569(4) g·mol−1[Xe] 4f14 5d10 6s12, 8, 18, 32, 18, 1metallic yellowsolid19.30 g/cc17.31 g/cc1337.33 K (1064.18 °C, 1947.52 °F)3129 K (2856 °C, 5173 °F)(25 °C) 25.418 J/molK12.55 kJ/mol324 kJ/mol(300 K) 318 W/mK(20 °C) 22.14 n Ωm-1, 1, 2, 3, 4, 5 (amphoteric oxide)2.541st: 890.1 kJ/mol136±6 pm166 pmface centered cubicdiamagnetic(r.t.) (hard-drawn) 2030 m·s−1(25 °C) 14.2 µm/mK144 pm78 GPa27 GPa180 GPa2.50.44216 MPa? 2450 MPa
9BBoron5213Metalloid7440-42-810.811(7)g/mmetalloid13, 2, p10.811(7) g·mol−1[He] 2s2 2p12, 3solid2.08 g/cc2349 K, 2076 °C, 3769 °F4200 K, 3927 °C, 7101 °F(25 °C) 11.087 J/molK50.2 kJ/mol480 kJ/mol(300 K) 27.4 W/mK(20 °C) ~106Ωm4, 3, 2, 1 (mildly acidic oxide)2.041st: 800.6 kJ/mol84±3 pmdiamagnetic(20 °C) 16,200 m/s(25 °C) (ß form) 5–7 µm/mK90 pm~9.5
10BaBarium5662Alkaline earth metal7440-39-3137.327(7)g/malkaline earth metals2, 6, s137.33 g·mol−1[Xe] 6s22, 8, 18, 18, 8, 2solid3.51 g/cc3.338 g/cc1000 K, 727 °C, 1341 °F2170 K, 1897 °C, 3447 °F(25 °C) 28.07 J/molK7.12 kJ/mol140.3 kJ/mol(300 K) 18.4 W/mK(20 °C) 332 nΩm2 (strongly basic oxide)0.891st: 502.9 kJ/mol215±11 pmbody-centered cubicparamagnetic(20 °C) 1620 m/s(25 °C) 20.6 µm/mK222 pm13 GPa4.9 GPa9.6 GPa1.25
11BeBeryllium422Alkaline earth metal7440-41-79.012182(3)g/malkaline earth metal2, 2, s9.012182(3) g·mol−11s2 2s22, 2solid1.85 g/cc1.690 g/cc1560 K, 1287 °C, 2349 °F2742 K, 2469 °C, 4476 °F(25 °C) 16.443 J/molK7.895 kJ/mol297 kJ/mol(300 K) 200 W/mK3, 2, 1 (amphoteric oxide)1.571st: 899.5 kJ/mol96±3 pmhexagonaldiamagnetic(r.t.) 12870 m·s−1(25 °C) 11.3 µm/mK112 pm287 GPa132 GPa130 GPa5.50.0321670 MPa600 MPa
12BhBohrium10777Transition metal54037-14-8273g/mtransition metals[270] g·mol−1[Rn] 5f14 6d5 7s22, 8, 18, 32, 32, 13, 2presumably a solid7unknown
13BiBismuth83615Poor metal7440-69-9208.98040(1)g/mpoor metals15, 6, p208.98040(1) g·mol−1[Xe] 4f14 5d10 6s2 6p32, 8, 18, 32, 18, 5solid9.78 g/cc10.05 g/cc544.7 K, 271.5 °C, 520.7 °F1837 K, 1564 °C, 2847 °F(25 °C) 25.52 J/molK11.30 kJ/mol151 kJ/mol(300 K) 7.97 W/mK(20 °C) 1.29x10^-6Ωm3, 5 (mildly acidic oxide)2.021st: 703 kJ/mol148±4 pmrhombohedraldiamagnetic(20 °C) 1790 m/s(25 °C) 13.4 µm/mK156 pm32 GPa12 GPa31 GPa2.250.3394.2 MPa
14BkBerkelium977Actinoid7440-40-6247.0703g/mactiniden/a, 7, f(247) g·mol−1[Rn] 5f9 7s22, 8, 18, 32, 27, 8, 2solid(beta) 13.25 g/cc(beta) 1259 K, 986 °C, 1807 °F(300 K) 10 W/mK3, 41.31st: 601 kJ/molhexagonal close-packedno data170 pm
15BrBromine35417Halogen7726-95-679.904(1)g/mhalogens79.904(1) g·mol−1[Ar] 4s2 3d10 4p52, 8, 18, 7gas/liquid: red-brown solid: metallic lusterliquid(Br2, liquid) 3.1028 g/cc265.8 K (-7.2 °C, 19 °F)332.0 K (58.8 °C, 137.8 °F)588 K, 10.34 MPa(25 °C) (Br2) 75.69 J/molK(Br2) 10.571 kJ/mol(Br2) 29.96 kJ/mol(300 K) 0.122 W/mK(20 °C) 7.8×1010 Ωm7, 5, 4, 3, 1, -1 (strongly acidic oxide)2.961st: 1139.9 kJ/mol120±3 pm185 pmorthorhombicdiamagnetic(20 °C) 206 m/s120 pm
16CCarbon6214Nonmetal7440-44-012.0107(8)g/mnonmetal14, 2, p12.0107 g·mol−11s2 2s2 2p22,4Soliddiamond: 3.515 g/cc3915 K, 3642 °C, 6588 °F4600 K (4327°C), 10800 kPa(25 °C) 8.517(graphite), 6.155(diamond) J/molK117 (graphite) kJ/mol(300 K) 119-165 (graphite) 900-2300 (diamond) W/mK4, 3 , 2, 1 , 0, -1, -2, -3, -42.551st: 1086.5 kJ/mol77(sp³), 73(sp²), 69(sp) pm170 pmdiamagnetic(20 °C) 18350 (diamond) m/s(25 °C) 0.8 (diamond) µm/mK1050 (diamond) GPa478 (diamond) GPa442 (diamond) GPa1-2 (Graphite) 10 (Diamond)0.1 (diamond)
17CaCalcium2042Alkaline earth metal7440-70-240.078(4)g/malkaline earth metal2, 4, s40.078(4) g·mol−1[Ar] 4s22, 8, 8, 2solid1.55 g/cc1.378 g/cc1115 K, 842 °C, 1548 °F1757 K, 1484 °C, 2703 °F(25 °C) 25.929 J/molK8.54 kJ/mol154.7 kJ/mol(300 K) 201 W/mK(20 °C) 33.6 nΩm2 (strongly basic oxide)11st: 589.8 kJ/mol176±10 pmface-centered cubicdiamagnetic(20 °C) 3810 m/s(25 °C) 22.3 µm/mK197 pm20 GPa7.4 GPa17 GPa1.750.31167 MPa
18CdCadmium48512Transition metal7440-43-9112.411(8)g/mtransition metals112.411(8) g·mol−1[Kr] 5s2 4d102, 8, 18, 18, 2silvery gray metallicsolid8.65 g/cc7.996 g/cc594.22 K (321.07 °C, 609.93 °F)1040 K (767 °C, 1413 °F)(25 °C) 26.020 J/molK6.21 kJ/mol99.87 kJ/mol(300 K) 96.6 W/mK(22 °C) 72.7 nΩm2, 1 (mildly basic oxide)1.691st: 867.8 kJ/mol144±9 pm158 pmhexagonaldiamagnetic(20 °C) 2310 m/s(25 °C) 30.8 µm/mK151 pm50 GPa19 GPa42 GPa20.3203 MPa
19CeCerium586Lanthanoid7440-45-1140.116(1)g/mlanthanides140.116(1) g·mol−1[Xe] 4f1 5d1 6s22, 8, 18, 19, 9, 2silvery whitesolid6.770 g/cc6.55 g/cc1068 K (795 °C, 1463 °F)3716 K (3443 °C, 6229 °F)(25 °C) 26.94 J/molK5.46 kJ/mol398 kJ/mol(300 K) 11.3 W/mK(r.t.) (β, poly) 828 nΩm4, 3, 2 (mildly basic oxide)1.121st: 534.4 kJ/mol204±9 pmface-centered cubicparamagnetic(20 °C) 2100 m/s(r.t.) (γ, poly) 6.3 µm/(m·K)181.8 pm(γ form) 33.6 GPa(γ form) 13.5 GPa(γ form) 21.5 GPa2.5(γ form) 0.24270 MPa412 MPa
20CfCalifornium987Actinoid7440-71-3251.0796g/mactinides(251) g·mol−1[Rn] 5f10 7s22, 8, 18, 32, 28, 8, 2silverysolid15.1 g/cc1173 K (900 °C, 1652 °F)1743 K (1470 °C, 2678 °F)2, 3, 41.31st: 608 kJ/mol
21ClChlorine17317Halogen7782-50-535.453(2)g/mHalogen17, 3, p35.453(2) g·mol−1[Ne] 3s2 3p52, 8, 7gas3.2 g/L171.6 K, -101.5 °C, -150.7 °F239.11 K, -34.4 °C, -29.27 °F416.9 K, 7.991 MPa(25 °C) (Cl2) 33.949 J/molK(Cl2) 6.406 kJ/mol(Cl2) 20.41 kJ/mol(300 K) 8.9x10-3 W/mK(20 °C) > 10 Ωm7, 6, 5, 4, 3, 2, 1, -1 (strongly acidic oxide)3.161st: 1251.2 kJ/mol102±4 pm175 pmorthorhombicdiamagnetic(gas, 0 °C) 206 m/s
22CmCurium967Actinoid7440-51-9247.0704g/mactinides(247) g·mol−1[Rn] 5f7 6d1 7s22, 8, 18, 32, 25, 9, 2silverysolid13.51 g/cc1613 K (1340 °C, 2444 °F)3383 K (3110 °C, 5630 °F)? 15 kJ/mol4, 3 (amphoteric oxide)1.31st: 581 kJ/mol169±3 pmhexagonal close-packedno data174 pm
23CoCobalt2749Transition metal7440-48-458.933195(5)g/mtransition metal9, 4, d58.933195(5) g·mol−1[Ar] 4s2 3d72, 8, 15, 2metallic gray8.90 g/cc7.75 g/cc1768 K, 1495 °C, 2723 °F3200 K, 2927 °C, 5301 °F(25 °C) 24.81 J/molK16.06 kJ/mol377 kJ/mol(300 K) 100 W/mK(20 °C) 62.4 nΩm5, 4 , 3, 2, 1 , -1 (amphoteric oxide)1.881st: 760.4 kJ/mol126±3 (low spin), 150±7 (high spin) pmhexagonalferromagnetic(20 °C) 4720 m/s(25 °C) 13.0 µm/mK125 pm209 GPa75 GPa180 GPa50.311043 MPa700 MPa
24CrChromium2446Transition metal7440-47-351.9961(6)g/mtransition metal6, 4, d51.9961(6) g·mol−1[Ar] 3d5 4s12, 8, 13, 1solid7.19 g/cc6.3 g/cc2180 K, 1907 °C, 3465 °F2944 K, 2671 °C, 4840 °F(25 °C) 23.35 J/molK21.0 kJ/mol339.5 kJ/mol(300 K) 93.9 W/mK(20 °C) 125 nΩm6, 5, 4, 3, 2, 1, -1, -2 (strongly acidic oxide)1.661st: 652.9 kJ/mol139±5 pmbody-centered cubicAFM (rather: SDW)(20 °C) 5940 m/s(25 °C) 4.9 µm/mK128 pm279 GPa115 GPa160 GPa8.50.211060 MPa1120 MPa
25CsCaesium5561Alkali metal7440-46-2132.9054519(2)g/malkali metals132.9054519(2) g·mol−1[Xe] 6s12, 8, 18, 18, 8, 1silvery goldsolid1.93 g/cc1.843 g/cc301.59 K (28.44 °C, 83.19 °F)944 K (671 °C, 1240 °F)1938 K, 9.4 MPa(25 °C) 32.210 J/molK2.09 kJ/mol63.9 kJ/mol(300 K) 35.9 W/mK(20 °C) 205 n Ωm1 (strongly basic oxide)0.791st: 375.7 kJ/mol244±11 pmbody centered cubicparamagnetic(25 °C) 97 µm/mK265 pm1.7 GPa1.6 GPa0.20.14 MPa
26CuCopper29411Transition metal7440-50-863.546(3)g/mtransition metal11, 4, d63.546(3) g·mol−1[Ar] 3d10 4s12, 8, 18, 1solid8.94 g/cc8.02 g/cc1357.77 K, 1084.62 °C, 1984.32 °F2835 K, 2562 °C, 4643 °F(25 °C) 24.440 J/molK13.26 kJ/mol300.4 kJ/mol(300 K) 401 W/mK(20 °C) 16.78 nΩm+1, +2, +3, +4 (mildly basic oxide)1.91st: 745.5 kJ/mol132±4 pm140 pmface-centered cubicdiamagnetic(r.t.) (annealed) 3810 m·s−1(25 °C) 16.5 µm/mK128 pm110–128 GPa48 GPa140 GPa30.34369 MPa874 MPa
27DbDubnium10575Transition metal53850-35-4268g/mtransition metals[268] g·mol−1[Rn] 5f14 6d3 7s22, 8, 18, 32, 32, 11, 2unknown, probably silvery white or metallic graypresumably a solidunknown g/cc5unknown pmunknownunknown pm
28DsDarmstadtium110710Transition metal54083-77-1278g/mtransition metals[281] g·mol−1[Rn] 5f14 6d9 7s12, 8, 18, 32, 32, 17, 1unknown, probably silvery white or metallic graypresumably a solid
29DyDysprosium666Lanthanoid7429-91-6162.500(1)g/mlanthanides162.500(1) g·mol−1[Xe] 4f10 6s22, 8, 18, 28, 8, 2silvery whitesolid8.540 g/cc8.37 g/cc1680 K (1407 °C, 2565 °F)2840 K (2562 °C, 4653 °F)(25 °C) 27.7 J/molK11.06 kJ/mol280 kJ/mol(300 K) 10.7 W/mK(r.t.) (α, poly) 926 nΩm3, 2 (weakly basic oxide)1.221st: 573.0 kJ/mol192±7 pmhexagonalparamagnetic at 300 K(20 °C) 2710 m/s(r.t.) (α, poly) 9.9 µm/(m·K)178 pm(α form) 61.4 GPa(α form) 24.7 GPa(α form) 40.5 GPa(α form) 0.247540 MPa500 MPa
30ErErbium686Lanthanoid7440-52-0167.259(3)g/mlanthanides167.259(3) g·mol−1[Xe] 4f12 6s22, 8, 18, 30, 8, 2silvery whitesolid9.066 g/cc8.86 g/cc1802 K (1529 °C, 2784 °F)3141 K (2868 °C, 5194 °F)(25 °C) 28.12 J/molK19.90 kJ/mol280 kJ/mol(300 K) 14.5 W/mK(r.t.) (poly) 0.860 µΩm3 (basic oxide)1.241st: 589.3 kJ/mol189±6 pmhexagonalparamagnetic at 300 K(20 °C) 2830 m/s(r.t.) (poly) 12.2 µm/(m·K)176 pm69.9 GPa28.3 GPa44.4 GPa0.237589 MPa814 MPa
31EsEinsteinium997Actinoid7429-92-7252.0829g/mactinides(252) g·mol−1[Rn] 5f11 7s22, 8, 18, 32, 29, 8, 2silver-colouredsolid8.84 g/cc1133 K (860 °C, 1580 °F)2, 3, 41.31st: 619 kJ/molno data
32EuEuropium636Lanthanoid7440-53-1151.964(1)g/mlanthanides151.964(1) g·mol−1[Xe] 4f7 6s22, 8, 18, 25, 8, 2silvery whitesolid5.264 g/cc5.13 g/cc1099 K (826 °C, 1519 °F)1802 K (1529 °C, 2784 °F)(25 °C) 27.66 J/molK9.21 kJ/mol176 kJ/mol(300 K) est. 13.9 W/mK(r.t.) (poly) 0.900 µΩm3, 2 (mildly basic oxide)? 1.21st: 547.1 kJ/mol198±6 pmsimple cubic (body centered)paramagnetic(r.t.) (poly) 35.0 µm/(m·K)180 pm18.2 GPa7.9 GPa8.3 GPa0.152167 MPa
33FFluorine9217Halogen7782-41-418.9984032(5)g/mhalogen17, 2, p18.9984032(5) g·mol−11s2 2s2 2p52, 7gas1.7 g/L53.53 K, −219.62 °C, −363.32 °F85.03 K, −188.12 °C, −306.62 °F144.13 K, 5.172 MPa(25 °C) (F2) 31.304 J/molK(F2) 0.510 kJ/mol(F2) 6.62 kJ/mol(300 K) 27.7 m W/mK−1 (Weaklyacidic oxide)3.981st: 1681.0 kJ/mol57±3 pm (see covalent radius of fluorine)147 pmcubicnonmagnetic
34FeIron2648Transition metal7439-89-655.845(2)g/mtransition metal8, 4, d55.845(2) g·mol−1[Ar] 3d6 4s22, 8, 14, 2solid7.874 g/cc6.98 g/cc1811 K, 1538 °C, 2800 °F3134 K, 2862 °C, 5182 °F(25 °C) 25.10 J/molK13.81 kJ/mol340 kJ/mol(300 K) 80.4 W/mK(20 °C) 96.1 nΩm1.831st: 762.5 kJ/mol132±3 (low spin), 152±6 (high spin) pmferromagnetic(r.t.) (electrolytic) 5120 m·s−1(25 °C) 11.8 µm/mK126 pm211 GPa82 GPa170 GPa40.29608 MPa490 MPa
35FmFermium1007Actinoid7440-72-4257.0951g/mactinides(257) g·mol−1[Rn] 5f12 7s22, 8, 18, 32, 30, 8, 2unknown, probably silvery white or metallic graysolid1800 K (1527 °C, 2781 °F)2, 31.31st: 627 kJ/mol
36FrFrancium8771Alkali metal7440-73-5223.0197g/malkali metals(223) g·mol−1[Rn] 7s12, 8, 18, 32, 18, 8, 1metallicsolid1.87 g/cc? 300 K (? 27 °C, ? 80 °F)? 950 K (? 677 °C, ? 1250 °F)ca. 2 kJ/molca. 65 kJ/mol(300 K) 15 W/mK3 µΩm1 (strongly basic oxide)0.71st: 380 kJ/mol260 pmbody centered cubicParamagnetic
37GaGallium31413Poor metal7440-55-369.723(1)g/mpoor metal13, 4, d69.723(1) g·mol−1[Ar] 3d10 4s2 4p12, 8, 18, 3solid5.91 g/cc6.095 g/cc302.9146 K, 29.7646 °C, 85.5763 °F2477 K, 2204 °C, 3999 °F(25 °C) 25.86 J/molK5.59 kJ/mol254 kJ/mol(300 K) 40.6 W/mK(20 °C) 270Ωm3, 2, 1 (amphoteric oxide)1.811st: 578.8 kJ/mol122±3 pm187 pmorthorhombicdiamagnetic(20 °C) 2740 m/s(25 °C) 1.2 µm/mK135 pm9.8 GPa1.50.4760 MPa
38GdGadolinium646Lanthanoid7440-54-2157.25(3)g/mlanthanides157.25(3) g·mol−1[Xe] 4f7 5d1 6s22, 8, 18, 25, 9, 2silvery whitesolid7.90 g/cc7.4 g/cc1585 K (1312 °C, 2394 °F)3546 K (3273 °C, 5923 °F)(25 °C) 37.03 J/molK10.05 kJ/mol301.3 kJ/mol(300 K) 10.6 W/mK(r.t.) (α, poly) 1.310 µΩm1, 2, 3 (mildly basic oxide)1.21st: 593.4 kJ/mol196±6 pmhexagonalferromagnetic/paramagnetic transition at 292 K(20 °C) 2680 m/s(100 °C) (α, poly) 9.4 µm/(m·K)180 pm(α form) 54.8 GPa(α form) 21.8 GPa(α form) 37.9 GPa(α form) 0.259570 MPa
39GeGermanium32414Metalloid7440-56-472.64(1)g/mmetalloids72.64(1) g·mol−1[Ar] 3d10 4s2 4p22, 8, 18, 4grayish whitesolid5.323 g/cc5.60 g/cc1211.40 K (938.25 °C, 1720.85 °F)3106 K (2833 °C, 5131 °F)(25 °C) 23.222 J/molK36.94 kJ/mol334 kJ/mol(300 K) 60.2 W/mK(20 °C) 1 Ωm4, 3, 2, 1, 0, -1, -2, -3, -4 (amphoteric oxide)2.011st: 762 kJ/mol122 pmDiamond cubicDiamagnetic(20 °C) 5400 m/s(25 °C) 6.0 µm/mK122 pm103 GPa41 GPa75 GPa60.26MPaMPa
40HHydrogen111Nonmetal1333-74-01.00794(7)g/mnonmetal1, 1, s1.00794(7) g·mol−11s11colorlessgas0.08988 g/L14.01 K, -259.14 °C, -434.45 °F20.28 K, -252.87 °C, -423.17 °F13.8033 K (-259°C), 7.042 kPa32.97 K, 1.293 MPa(25 °C) (H2) 28.836 J/molK(H2) 0.117 kJ/mol(H2) 0.904 kJ/mol(300 K) 0.1805 W/mK1, -1 (amphoteric oxide)2.21st: 1312.0 kJ/mol31±5 pm120 pmhexagonaldiamagnetic(gas, 27 °C) 1310 m/s
41HeHelium2118Noble gas7440-59-74.002602(2)g/mnoble gases18, 1, s4.002602(2) g·mol−11s22gas0.1786 g/L(at 2.5 MPa) 0.95 K, −272.20 °C, −457.96 °F4.22 K, −268.93 °C, −452.07 °F5.19 K, 0.227 MPa(25 °C) 20.786 J/molK0.0138 kJ/mol0.0829 kJ/mol(300 K) 0.1513 W/mKno data1st: 2372.3 kJ/mol28 pm140 pmhexagonal close-packeddiamagnetic(25 °C) µm/mK
42HfHafnium7264Transition metal7440-58-6178.49(2)g/mtransition metals178.49(2) g·mol−1[Xe] 4f14 5d2 6s22, 8, 18, 32, 10, 2steel greysolid13.31 g/cc12 g/cc2506 K (2233 °C, 4051 °F)4876 K (4603 °C, 8317 °F)(25 °C) 25.73 J/molK27.2 kJ/mol571 kJ/mol(300 K) 23.0 W/mK(20 °C) 331 n Ωm4, 3, 2 (amphoteric oxide)1.31st: 658.5 kJ/mol175±10 pmhexagonalparamagnetic(20 °C) 3010 m/s(25 °C) 5.9 µm/mK159 pm78 GPa30 GPa110 GPa5.50.371760 MPa1700 MPa
43HgMercury80612Transition metal7439-97-6200.59(2)g/mtransition metal12, 6, d200.59(2) g·mol−1[Xe] 4f14 5d10 6s22, 8, 18, 32, 18, 2liquid(liquid) 13.534 g/cc234.32 K, -38.83 °C, -37.89 °F629.88 K, 356.73 °C, 674.11 °F1750 K, 172.00 MPa(25 °C) 27.983 J/molK2.29 kJ/mol59.11 kJ/mol(300 K) 8.30 W/mK(25 °C) 961nΩm4, 2 (mercuric), 1 (mercurous) (mildly basic oxide)21st: 1007.1 kJ/mol132±5 pm155 pmrhombohedraldiamagnetic(liquid, 20 °C) 1451.4 m/s(25 °C) 60.4 µm/mK151 pm
44HoHolmium676Lanthanoid7440-60-0164.93032(2)g/mlanthanides164.93032(2) g·mol−1[Xe] 4f11 6s22, 8, 18, 29, 8, 2silvery whitesolid8.79 g/cc8.34 g/cc1734 K (1461 °C, 2662 °F)2993 K (2720 °C, 4928 °F)(25 °C) 27.15 J/molK17.0 kJ/mol265 kJ/mol(300 K) 16.2 W/mK(r.t.) (poly) 814 nΩm3 (basic oxide)1.231st: 581.0 kJ/mol192±7 pmhexagonalparamagnetic(20 °C) 2760 m/s(r.t.) (poly) 11.2 µm/(m·K)176 pm64.8 GPa26.3 GPa40.2 GPa0.231481 MPa746 MPa
45HsHassium10878Transition metal54037-57-9276g/mtransition metals[277] g·mol−1[Rn] 5f14 6d6 7s22, 8, 18, 32, 32, 14, 2unknown, probably silvery white or metallic graypresumably a solid8unknown
46IIodine53517Halogen7553-56-2126.90447(3)g/mhalogens126.90447(3) g·mol−1[Kr] 4d10 5s2 5p52, 8, 18, 18, 7solid violet-dark gray, lustrous violet gassolid4.933 g/cc386.85 K (113.7 °C, 236.66 °F)457.4 K (184.3 °C, 363.7 °F)386.65 K, 12.1×103 Pa819 K, 11.7 MPa(25 °C) (I2) 54.44 J/molK(I2) 15.52 kJ/mol(I2) 41.57 kJ/mol(300 K) 0.449 W/mK(0 °C) 1.3×107 Ωm7, 5, 3, 1, -1 (strongly acidic oxide)2.661st: 1008.4 kJ/mol139±3 pm198 pmorthorhombicdiamagnetic140 pm7.7 GPa
47InIndium49513Poor metal7440-74-6114.818(3)g/mpoor metals114.818(3) g·mol−1[Kr] 4d10 5s2 5p12, 8, 18, 18, 3silvery lustrous graysolid7.31 g/cc7.02 g/cc429.7485 K (156.5985 °C, 313.8773 °F)2345 K (2072 °C, 3762 °F)(25 °C) 26.74 J/molK3.281 kJ/mol231.8 kJ/mol(300 K) 81.8 W/mK(20 °C) 83.7 n Ωm3, 2, 1 (amphoteric oxide)1.781st: 558.3 kJ/mol142±5 pm193 pmtetragonaldiamagnetic(20 °C) 1215 m/s(25 °C) 32.1 µm/mK167 pm11 GPa1.28.83 MPa
48IrIridium7769Transition metal7439-88-5192.217(3)g/mtransition metals192.217(3) g·mol−1[Xe] 4f14 5d7 6s22, 8, 18, 32, 15, 2silvery whitesolid22.56 g/cc19 g/cc2739 K (2466 °C, 4471 °F)4701 K (4428 °C, 8002 °F)(25 °C) 25.10 J/molK41.12 kJ/mol563 kJ/mol(300 K) 147 W/mK(20 °C) 47.1 n Ωm−3,−1, 0, 1, 2, 3, 4, 5, 62.21st: 880 kJ/mol141±6 pmface centered cubicparamagnetic(20 °C) 4825 m/s(25 °C) 6.4 µm/mK136 pm528 GPa210 GPa320 GPa6.50.261760 MPa1670 MPa
49KPotassium1941Alkali metal7440-09-739.0983(1)g/malkali metal1, 4, s39.0983(1) g·mol−1[Ar] 4s12, 8, 8, 1solid0.89 g/cc0.828 g/cc336.53 K, 63.38 °C, 146.08 °F1032 K, 759 °C, 1398 °F336.35 K (63°C), kPa(25 °C) 29.6 J/molK2.33 kJ/mol76.9 kJ/mol(300 K) 102.5 W/mK1 (strongly basic oxide)0.821st: 418.8 kJ/mol203±12 pm275 pmbody-centered cubicparamagnetic(20 °C) 2000 m/s(25 °C) 83.3 µm/mK227 pm3.53 GPa1.3 GPa3.1 GPa0.40.363 MPa
50KrKrypton36418Noble gas7439-90-983.798(2)g/mnoble gases83.798(2) g·mol−1[Ar] 3d10 4s2 4p62, 8, 18, 8colorless gasgas3.749 g/L115.79 K (-157.36 °C, -251.25 °F)119.93 K (-153.22 °C, -244.12 °F)115.775 K, 73.2 kPa209.41 K, 5.50 MPa(25 °C) 20.786 J/molK1.64 kJ/mol9.08 kJ/mol(300 K) 9.43x10-3 W/mK4, 231st: 1350.8 kJ/mol116±4 pm202 pmcubic face centereddiamagnetic(liquid) 1120 m/s
51LaLanthanum576Lanthanoid7439-91-0138.90547(7)g/mlanthanides138.90547(7) g·mol−1[Xe] 5d1 6s22, 8, 18, 18, 9, 2silvery whitesolid6.162 g/cc5.94 g/cc1193 K (920 °C, 1688 °F)3737 K (3464 °C, 6267 °F)(25 °C) 27.11 J/molK6.20 kJ/mol402.1 kJ/mol(300 K) 13.4 W/mK(r.t.) (α, poly) 615 nΩm3, 2 (strongly basic oxide)1.11st: 538.1 kJ/mol207±8 pmhexagonalparamagnetic(20 °C) 2475 m/s(r.t.) (α, poly) 12.1 µm/(m·K)187 pm(α form) 36.6 GPa(α form) 14.3 GPa(α form) 27.9 GPa2.5(α form) 0.280491 MPa363 MPa
52LiLithium321Alkali metal7439-93-26.941(2)g/malkali metal1, 2, s6.941(2) g·mol−11s2 2s12, 1solid0.534 g/cc0.512 g/cc453.69 K, 180.54 °C, 356.97 °F1615 K, 1342 °C, 2448 °F(extrapolated) 3223 K, 67 MPa(25 °C) 24.860 J/molK3.00 kJ/mol147.1 kJ/mol(300 K) 84.8 W/mK(20 °C) 92.8 nΩm+1, -1 (strongly basic oxide)0.981st: 520.2 kJ/mol128±7 pm182 pmbody-centered cubicparamagnetic(20 °C) 6000 m/s(25 °C) 46 µm/mK152 pm4.9 GPa4.2 GPa11 GPa0.6
53LrLawrencium10373Actinoid22537-19-5264g/mtransition metals[262] g·mol−1[Rn] 5f14 7s2 7p12, 8, 18, 32, 32, 8, 3unknown, probably silvery white or metallic graypresumably a solid31st: 443.8 kJ/mol
54LuLutetium7163Lanthanoid7439-94-3174.9668(1)g/mtransition metals174.967(1) g·mol−1[Xe] 6s2 4f14 5d12, 8, 18, 32, 9, 2silvery whitesolid9.841 g/cc9.3 g/cc1925 K (1652 °C, 3006 °F)3675 K (3402 °C, 6156 °F)(25 °C) 26.86 J/molKca. 22 kJ/mol414 kJ/mol(300 K) 16.4 W/mK(r.t.) (poly) 582 nΩm3 (weakly basic oxide)1.271st: 523.5 kJ/mol187±8 pmhexagonalparamagnetic(r.t.) (poly) 9.9 µm/(m·K)174 pm68.6 GPa27.2 GPa47.6 GPa0.2611160 MPa893 MPa
55MdMendelevium1017Actinoid7440-11-1258.0986g/mactinides(258) g·mol−1[Rn] 5f13 7s22, 8, 18, 32, 31, 8, 2unknown, probably silvery white or metallic graysolid1100 K (827 °C, 1521 °F)2, 31.31st: 635 kJ/molno data
56MgMagnesium1232Alkaline earth metal7439-95-424.3050(6)g/malkaline earth metal2, 3, s24.3050(6) g·mol−1[Ne] 3s22, 8, 2solid1.738 g/cc1.584 g/cc923 K, 650 °C, 1202 °F1363 K, 1091 °C, 1994 °F(25 °C) 24.869 J/molK8.48 kJ/mol128 kJ/mol(300 K) 156 W/mK(20 °C) 43.9 nΩm2, 1 (strongly basic oxide)1.311st: 737.7 kJ/mol141±7 pm173 pmhexagonalparamagnetic(r.t.) (annealed) 4940 m·s−1(25 °C) 24.8 µm/mK160 pm45 GPa17 GPa45 GPa2.50.29260 MPa
57MnManganese2547Transition metal7439-96-554.938045(5)g/mtransition metal7, 4, d54.938045(5) g·mol−1[Ar] 4s2 3d52, 8, 13, 2solid7.21 g/cc5.95 g/cc1519 K, 1246 °C, 2275 °F2334 K, 2061 °C, 3742 °F(25 °C) 26.32 J/molK12.91 kJ/mol221 kJ/mol(300 K) 7.81 W/mK(20 °C) 1.44 µΩm7, 6, 5, 4, 3, 2, 1, -1, -2, -3 (oxides: acidic, basic or amphoteric depending on the oxidation state)1.551st: 717.3 kJ/mol139±5 (low spin), 161±8 (high spin) pmcubicparamagnetic(20 °C) 5150 m/s(25 °C) 21.7 µm/mK127 pm198 GPa120 GPa6196 MPa
58MoMolybdenum4256Transition metal7439-98-795.96(2)g/mtransition metals95.94(2) g·mol−1[Kr] 4d5 5s12, 8, 18, 13, 1gray metallicsolid10.28 g/cc9.33 g/cc2896 K (2623 °C, 4753 °F)4912 K (4639 °C, 8382 °F)(25 °C) 24.06 J/molK37.48 kJ/mol617 kJ/mol(300 K) 138 W/mK(20 °C) 53.4 n Ωm6, 5, 4, 3, 2, 1, -1, -2 (strongly acidic oxide)2.161st: 684.3 kJ/mol154±5 pmbody centered cubicparamagnetic(r.t.) 5400 m·s−1(25 °C) 4.8 µm/mK139 pm329 GPa126 GPa230 GPa5.50.311530 MPa1500 MPa
59MtMeitnerium10979Transition metal54038-01-6279g/mtransition metals[276] g·mol−1[Rn] 5f14 6d7 7s22, 8, 18, 32, 32, 15, 2probably light silver green metallicpresumably a solid
60NNitrogen7215Nonmetal7727-37-914.0067(2)g/mnonmetal15, 2, p14.0067(2) g·mol−11s2 2s2 2p32, 5gas1.251 g/L63.153 K, -210.00 °C, -346.00 °F77.36 K, -195.79 °C, -320.3342 °F63.1526 K (-210°C), 12.53 kPa126.19 K, 3.3978 MPa(25 °C) (N2) 29.124 J/molK(N2) 0.72 kJ/mol(N2) 5.56 kJ/mol(300 K) 25.83 × 10−3 W/mK5, 4, 3, 2, 1, -1, -2, -3 (strongly acidic oxide)3.041st: 1402.3 kJ/mol71±1 pm155 pmhexagonaldiamagnetic(gas, 27 °C) 353 m/s
61NaSodium1131Alkali metal7440-23-522.98976928(2)g/malkali metal1, 3, s22.98976928(2) g·mol−1[Ne] 3s12,8,1solid0.968 g/cc0.927 g/cc370.87 K, 97.72 °C, 207.9 °F1156 K, 883 °C, 1621 °F(extrapolated) 2573 K, 35 MPa(25 °C) 28.230 J/molK2.60 kJ/mol97.42 kJ/mol(300 K) 142 W/mK(20 °C) 47.7 nΩm+1, -1 (strongly basic oxide)0.931st: 495.8 kJ/mol166±9 pm227 pmbody-centered cubicparamagnetic(20 °C) 3200 m/s(25 °C) 71 µm/mK186 pm10 GPa3.3 GPa6.3 GPa0.50.69 MPa
62NbNiobium4155Transition metal7440-03-192.90638(2)g/mtransition metals92.90638(2) g·mol−1[Kr] 4d4 5s12, 8, 18, 12, 1gray metallicsolid8.57 g/cc2750 K (2477 °C, 4491 °F)5017 K (4744 °C, 8571 °F)(25 °C) 24.60 J/molK30 kJ/mol689.9 kJ/mol(300 K) 53.7 W/mK(0 °C) 152 nΩm5, 4, 3, 2, -1 (mildly acidic oxide)1.61st: 652.1 kJ/mol164±6 pmbody centered cubicparamagnetic(20 °C) 3480 m/s(25 °C) 7.3 µm/mK146 pm105 GPa38 GPa170 GPa60.41320 MPa736 MPa
63NdNeodymium606Lanthanoid7440-00-8144.242(3)g/mlanthanides144.242(3) g·mol−1[Xe] 4f4 6s22, 8, 18, 22, 8, 2silvery white, yellowish tingesolid7.01 g/cc6.89 g/cc1297 K (1024 °C, 1875 °F)3347 K (3074 °C, 5565 °F)(25 °C) 27.45 J/molK7.14 kJ/mol289 kJ/mol(300 K) 16.5 W/mK(r.t.) (α, poly) 643 nΩm3, 2 (mildly basic oxide)1.141st: 533.1 kJ/mol201±6 pmhexagonalparamagnetic, antiferromagnetic below 20K(20 °C) 2330 m/s(r.t.) (α, poly) 9.6 µm/(m·K)181 pm(α form) 41.4 GPa(α form) 16.3 GPa(α form) 31.8 GPa(α form) 0.281343 MPa265 MPa
64NeNeon10218Noble gas7440-01-920.1797(6)g/mnoble gases18, 2, p20.1797(6) g·mol−11s2 2s2 2p62, 8gas0.9002 g/L24.56 K, -248.59 °C, -415.46 °F27.07 K, -246.08 °C, -410.94 °F24.5561 K (-249°C), 43 kPa44.4 K, 2.76 MPa(25 °C) 20.786 J/molK0.335 kJ/mol1.71 kJ/mol(300 K) 49.1x10-3 W/mKno data1st: 2080.7 kJ/mol58 pm154 pmface-centered cubicdiamagnetic(gas, 0 °C) 435 m/s654 GPa
65NiNickel28410Transition metal7440-02-058.6934(4)g/mtransition metal10, 4, d58.6934(2) g·mol−1[Ar] 4s1 3d92, 8, 17, 1solid8.908 g/cc7.81 g/cc1728 K, 1453 °C, 2651 °F3186 K, 2732 °C, 5275 °F(25 °C) 26.07 J/molK17.48 kJ/mol377.5 kJ/mol(300 K) 90.9 W/mK(20 °C) 69.3 nΩm4, 3, 2, 1 , -1 (mildly basic oxide)1.911st: 737.1 kJ/mol124±4 pm163 pmface-centered cubicferromagnetic(r.t.) 4900 m·s−1(25 °C) 13.4 µm/mK124 pm200 GPa76 GPa180 GPa40.31638 MPa700 MPa
66NoNobelium1027Actinoid10028-14-5259.1009g/mactinides[259] g·mol−1[Rn] 5f14 7s22, 8, 18, 32, 32, 8, 2unknown, probably metallicsolid2, 3(Pauling scale)1st: 641.6 kJ/mol
67NpNeptunium937Actinoid7439-99-8237.0482g/mactinides(237) g·mol−1[Rn] 5f4 6d1 7s22, 8, 18, 32, 22, 9, 2silvery metallicsolid20.45 g/cc910 K (637 °C, 1179 °F)4273 K (4000 °C, 7232 °F)(25 °C) 29.46 J/molK3.20 kJ/mol336 kJ/mol(300 K) 6.3 W/mK(22 °C) 1.220 µΩm7, 6, 5, 4, 3 (amphoteric oxide)1.361st: 604.5 kJ/mol190±1 pm3 forms: orthorhombic, tetragonal and cubicparamagnetic155 pm
68OOxygen8216Nonmetal7782-44-715.9994(3)g/mnonmetal, chalcogens16, 2, p15.9994(3) g·mol−11s2 2s2 2p42, 6gas1.429 g/L54.36 K, -218.79 °C, -361.82 °F90.20 K, -182.95 °C, -297.31 °F154.59 K, 5.043 MPa(25 °C) (O2) 29.378 J/molK(O2) 0.444 kJ/mol(O2) 6.82 kJ/mol(300 K) 26.58x10-3 W/mK2, 1, −1, −2 (neutral oxide)3.441st: 1313.9 kJ/mol66±2 pm152 pmcubicparamagnetic(gas, 27 °C) 330 m/s
69OsOsmium7668Transition metal7440-04-2190.23(3)g/mtransition metals190.23(3) g·mol−1[Xe] 4f14 5d6 6s22, 8, 18, 32, 14, 2silvery, blue castsolid22.61 g/cc20 g/cc3306 K (3033 °C, 5491 °F)5285 K (5012 °C, 9054 °F)(25 °C) 24.7 J/molK57.85 kJ/mol738 kJ/mol(300 K) 87.6 W/mK(0 °C) 81.2 nΩm8, 7, 6, 5, 4, 3, 2, 1, 0, -1, -2 (mildly acidic oxide)2.21st: 840 kJ/mol144±4 pmhexagonalparamagnetic(20 °C) 4940 m/s(25 °C) 5.1 µm/mK135 pm222 GPa462 GPa70.253920 MPa
70PPhosphorus15315Nonmetal7723-14-030.973762(2)g/mnonmetal15, 3, p30.973762(2) g·mol−1[Ne] 3s2 3p32, 8, 5(white) 1.823, (red) ≈ 2.2 – 2.34, (violet) 2.36, (black) 2.69 g/cc(white) 44.2 °C, (black) 610 °C(white) 280.5 °C(red) ≈ 416 – 590 °C, (violet) 620 °C(25 °C) (white) 23.824 J/molK(white) 0.66 kJ/mol(white) 12.4 kJ/mol(300 K) (white) 0.236, (black) 12.1 W/mK5, 4, 3, 2, 1 , -1, -2, -3 (mildly acidic oxide)2.191st: 1011.8 kJ/mol107±3 pm180 pm(white,red,violet,black) diamagnetic(white) 5, (red) 11 GPa
71PaProtactinium917Actinoid7440-13-3231.03588(2)g/mactinides231.03588(2) g·mol−1[Rn] 7s2 6d1 5f22, 8, 18, 32, 20, 9, 2bright, silvery metallic lustersolid15.37 g/cc1841 K (1568 °C, 2854 °F)? 4300 K (? 4027 °C, ? 7280 °F)12.34 kJ/mol481 kJ/mol(300 K) 47 W/mK(0 °C) 177 nΩm2, 3, 4, 5 (weakly basic oxide)1.51st: 568 kJ/mol200 pmorthorhombicparamagnetic163 pm
72PbLead82614Poor metal7439-92-1207.2(1)g/mPost-transition metals207.2(1) g·mol−1[Xe] 4f14 5d10 6s2 6p22, 8, 18, 32, 18, 4bluish graysolid11.34 g/cc10.66 g/cc600.61 K (327.46 °C, 621.43 °F)2022 K (1749 °C, 3180 °F)(25 °C) 26.650 J/molK4.77 kJ/mol179.5 kJ/mol(300 K) 35.3 W/mK(20 °C) 208 n Ωm4, 2, -4 (Amphoteric oxide)2.331st: 715.6 kJ/mol146±5 pm202 pmface centered cubicdiamagnetic(r.t.) (annealed) 1190 m·s−1(25 °C) 28.9 µm/mK175 pm16 GPa5.6 GPa46 GPa1.50.4438.3 MPa
73PdPalladium46510Transition metal7440-05-3106.42(1)g/mtransition metals106.42(1) g·mol−1[Kr] 4d102, 8, 18, 18, 0silvery white metallicsolid12.023 g/cc10.38 g/cc1828.05 K (1554.9 °C, 2830.82 °F)3236 K (2963 °C, 5365 °F)(25 °C) 25.98 J/molK16.74 kJ/mol362 kJ/mol(300 K) 71.8 W/mK(20 °C) 105.4 n Ωm0, +1, +2, +4, +6 (mildly basic oxide)2.21st: 804.4 kJ/mol139±6 pm163 pmcubic face centeredparamagnetic(20 °C) 3070 m/s(25 °C) 11.8 µm/mK137 pm121 GPa44 GPa180 GPa4.750.39461 MPa37.3 MPa
74PmPromethium616Lanthanoid7440-12-2146.9151g/mlanthanoids[145](0) g·mol−1[Xe] 4f5 6s22, 8, 18, 23, 8, 2metallicsolid7.26 g/cc1315 K (1042 °C, 1908 °F)3273 K (3000 °C, 5432 °F)7.13 kJ/mol289 kJ/mol(300 K) 17.9 W/mK(r.t.) est. 0.75 µΩm3 (mildly basic oxide)? 1.131st: 540 kJ/mol199 pmhexagonalparamagnetic(r.t.) (α, poly) est. 11 µm/(m·K)183 pm(α form) est. 46 GPa(α form) est. 18 GPa(α form) est. 33 GPa(α form) est. 0.28
75PoPolonium84616Metalloid7440-08-6208.9824g/mmetalloids(209) g·mol−1[Xe] 6s2 4f14 5d10 6p42, 8, 18, 32, 18, 6silverysolid(beta) 9.398 g/cc527 K (254 °C, 489 °F)1235 K (962 °C, 1764 °F)(25 °C) 26.4 J/molKca. 13 kJ/mol102.91 kJ/mol(300 K) ? 20 W/mK(0 °C) (α) 0.40 µΩm6, 4, 2, -2 (amphoteric oxide)21st: 812.1 kJ/mol140±4 pmcubicnonmagnetic(25 °C) 23.5 µm/mK168 pm
76PrPraseodymium596Lanthanoid7440-10-0140.90765(2)g/mlanthanides140.90765(2) g·mol−1[Xe] 4f3 6s22, 8, 18, 21, 8, 2grayish whitesolid6.77 g/cc6.50 g/cc1208 K (935 °C, 1715 °F)3793 K (3520 °C, 6368 °F)(25 °C) 27.20 J/molK6.89 kJ/mol331 kJ/mol(300 K) 12.5 W/mK(r.t.) (α, poly) 0.700 µΩm4, 3, 2 (mildly basic oxide)1.131st: 527 kJ/mol203±7 pmhexagonalparamagnetic(20 °C) 2280 m/s(r.t.) (α, poly) 6.7 µm/(m·K)182 pm(α form) 37.3 GPa(α form) 14.8 GPa(α form) 28.8 GPa(α form) 0.281400 MPa481 MPa
77PtPlatinum78610Transition metal7440-06-4195.084(9)g/mtransition metals195.084(9) g·mol−1[Xe] 4f14 5d9 6s12, 8, 18, 32, 17, 1grayish whitesolid21.45 g/cc19.77 g/cc2041.4 K (1768.3 °C, 3214.9 °F)4098 K (3825 °C, 6917 °F)(25 °C) 25.86 J/molK22.17 kJ/mol469 kJ/mol(300 K) 71.6 W/mK(20 °C) 105 n Ωm6, 5, 4, 3 , 2, 1, -1, -2 (mildly basic oxide)2.281st: 870 kJ/mol136±5 pm175 pmface centered cubicparamagnetic(r.t.) 2800 m·s−1(25 °C) 8.8 µm/mK139 pm168 GPa61 GPa230 GPa4–4.50.38549 MPa392 MPa
78PuPlutonium947Actinoid7440-07-5244.0642g/mactinides(244) g·mol−1[Rn] 5f6 7s22, 8, 18, 32, 24, 8, 2silvery whitesolid19.816 g/cc16.63 g/cc912.5 K (639.4 °C, 1182.9 °F)3505 K (3228 °C, 5842 °F)(25 °C) 35.5 J/molK2.82 kJ/mol333.5 kJ/mol(300 K) 6.74 W/mK(0 °C) 1.460 µΩm7, 6, 5, 4, 3 (amphoteric oxide)1.281st: 584.7 kJ/mol187±1 pmmonoclinicparamagnetic(20 °C) 2260 m/s(25 °C) 46.7 µm/mK159 pm96 GPa43 GPa0.21
79RaRadium8872Alkaline earth metal7440-14-4226.0254g/malkaline earth metals(226) g·mol−1[Rn] 7s22, 8, 18, 32, 18, 8, 2silvery white metallicsolid5.5 g/cc973 K (700 °C, 1292 °F)2010 K (1737 °C, 3159 °F)8.5 kJ/mol113 kJ/mol(300 K) 18.6 W/mK(20 °C) 1 µ Ωm2 (strongly basic oxide)0.91st: 509.3 kJ/mol221±2 pmbody centered cubicnonmagnetic
80RbRubidium3751Alkali metal7440-17-785.4678(3)g/malkali metals85.4678(3) g·mol−1[Kr] 5s12, 8, 18, 8, 1grey whitesolid1.532 g/cc1.46 g/cc312.46 K (39.31 °C, 102.76 °F)961 K (688 °C, 1270 °F)(extrapolated) 2093 K, 16 MPa(25 °C) 31.060 J/molK2.19 kJ/mol75.77 kJ/mol(300 K) 58.2 W/mK(20 °C) 128 n Ωm1 (strongly basic oxide)0.821st: 403.0 kJ/mol220±9 pm244 pmbody centered cubicparamagnetic(20 °C) 1300 m/s248 pm2.4 GPa2.5 GPa0.30.216 MPa
81ReRhenium7567Transition metal7440-15-5186.207(1)g/mtransition metals186.207(1) g·mol−1[Xe] 4f14 5d5 6s22, 8, 18, 32, 13, 2grayish whitesolid21.02 g/cc18.9 g/cc3459 K (3186 °C, 5767 °F)5869 K (5596 °C, 10105 °F)(25 °C) 25.48 J/molK60.43 kJ/mol704 kJ/mol(300 K) 48.0 W/mK(20 °C) 193 n Ωm7, 6, 5, 4, 3, 2, 1, 0, -1 (mildly acidic oxide)1.91st: 760 kJ/mol151±7 pmhexagonalparamagnetic(20 °C) 4700 m/s(25 °C) 6.2 µm/mK137 pm463 GPa178 GPa370 GPa70.32450 MPa1320 MPa
82RfRutherfordium10474Transition metal53850-36-5265g/mtransition metals[267] g·mol−1[Rn] 5f14 6d2 7s22, 8, 18, 32, 32, 10, 2Unknown4
83RgRoentgenium111711Transition metal54386-24-2283g/mtransition metals[280] g·mol−1[Rn] 5f14 6d9 7s22, 8, 18, 32, 32, 17, 2unknownpresumably a solid
84RhRhodium4559Transition metal7440-16-6102.90550(2)g/mtransition metals102.90550(2) g·mol−1[Kr] 4d8 5s12, 8, 18, 16, 1silvery white metallicsolid12.41 g/cc10.7 g/cc2237 K (1964 °C, 3567 °F)3968 K (3695 °C, 6683 °F)(25 °C) 24.98 J/molK26.59 kJ/mol494 kJ/mol(300 K) 150 W/mK(0 °C) 43.3 nΩm6, 5, 4, 3, 2, 1, -1 (amphoteric oxide)2.281st: 719.7 kJ/mol142±7 pmcubic face centeredparamagnetic(20 °C) 4700 m/s(25 °C) 8.2 µm/mK134 pm380 GPa150 GPa275 GPa60.261246 MPa1100 MPa
85RnRadon86618Noble gas10043-92-2222.0176g/mnoble gases18, 6, p(222) g·mol−1[Xe] 4f14 5d10 6s2 6p62, 8, 18, 32, 18, 8gas202 K, −71.15 °C, −96 °F211.3 K, −61.85 °C, −79.1 °F377 K, 6.28 MPa(25 °C) 20.786 J/molK3.247 kJ/mol18.10 kJ/mol(300 K) 3.61 m W/mK22.21st: 1037 kJ/mol150 pmface-centered cubicnon-magnetic
86RuRuthenium4458Transition metal7440-18-8101.07(2)g/mtransition metals101.07(2) g·mol−1[Kr] 4d7 5s12, 8, 18, 15, 1silvery white metallic12.45 g/cc10.65 g/cc2607 K (2334 °C, 4233 °F)4423 K (4150 °C, 7502 °F)(25 °C) 24.06 J/molK38.59 kJ/mol591.6 kJ/mol(300 K) 117 W/mK(0 °C) 71 nΩm8, 7, 6, 4, 3, 2, 1,, -2 (mildly acidic oxide)2.31st: 710.2 kJ/mol146±7 pmhexagonalparamagnetic(20 °C) 5970 m/s(25 °C) 6.4 µm/mK134 pm447 GPa173 GPa220 GPa6.50.32160 MPa
87SSulfur16316Nonmetal7704-34-932.065(5)g/mnonmetal16, 3, p32.065(5) g·mol−1[Ne] 3s2 3p42, 8, 6solid(gamma) 1.92 g/cc1.819 g/cc388.36 K, 115.21 °C, 239.38 °F717.8 K, 444.6 °C, 832.3 °F1314 K, 20.7 MPa(25 °C) 22.75 J/molK(mono) 1.727 kJ/mol(mono) 45 kJ/mol(300 K) (amorphous) 0.205 W/mK(20 °C) (amorphous) 2×1015Ωm6, 5, 4, 3, 2, 1, -1, -2 (strongly acidic oxide)2.581st: 999.6 kJ/mol105±3 pm180 pmorthorhombicdiamagnetic7.7 GPa2
88SbAntimony51515Metalloid7440-36-0121.760(1)g/mmetalloid15, 5, p121.760(1) g·mol−1[Kr] 4d10 5s2 5p32, 8, 18, 18, 5solid6.697 g/cc6.53 g/cc903.78 K, 630.63 °C, 1167.13 °F1860 K, 1587 °C, 2889 °F(25 °C) 25.23 J/molK19.79 kJ/mol193.43 kJ/mol(300 K) 24.4 W/mK(20 °C) 417 nΩm5, 3, -32.051st: 834 kJ/mol139±5 pmrhombohedraldiamagnetic(20 °C) 3420 m/s(25 °C) 11 µm/mK140 pm55 GPa20 GPa42 GPa3294 MPa
89ScScandium2143Transition metal7440-20-244.955912(6)g/mtransition metal3, 4, d44.955912(6) g·mol−1[Ar] 3d1 4s22, 8, 9, 2solid2.985 g/cc2.80 g/cc1814 K, 1541 °C, 2806 °F3109 K, 2836 °C, 5136 °F(25 °C) 25.52 J/molK14.1 kJ/mol332.7 kJ/mol(300 K) 15.8 W/mK(r.t.) (α, poly) calc. 562 nΩm3, 2, 1 (weakly basic oxide)1.361st: 633.1 kJ/mol170±7 pmhexagonalparamagnetic(r.t.) (α, poly) 10.2 µm/(m·K)162 pm74.4 GPa29.1 GPa56.6 GPa0.279750 MPa
90SeSelenium34416Nonmetal7782-49-278.96(3)g/mnonmetals78.96(3) g·mol−1[Ar] 4s2 3d10 4p42, 8, 18, 6gray-black, metallic lustersolid(vitreous) 4.28 g/cc3.99 g/cc494 K (221 °C, 430 °F)958 K (685 °C, 1265 °F)1766 K, 27.2 MPa(25 °C) 25.363 J/molK(gray) 6.69 kJ/mol95.48 kJ/mol(300 K) (amorphous) 0.519 W/mK6, 4, 2, 1, -2 (strongly acidic oxide)2.551st: 941.0 kJ/mol120±4 pm190 pmhexagonaldiamagnetic(20 °C) 3350 m/s(25 °C) (amorphous) 37 µm/mK120 pm10 GPa3.7 GPa8.3 GPa20.33736 MPa
91SgSeaborgium10676Transition metal54038-81-2272g/mtransition metals[271] g·mol−1[Rn] 7s2 5f14 6d42, 8, 18, 32, 32, 12, 2unknown, probably silvery white or metallic graypresumably a solidunknown g/cc6unknown pmunknownunknown pm
92SiSilicon14314Metalloid7440-21-328.0855(3)g/mmetalloid14, 3, p28.0855(3) g·mol−1[Ne] 3s2 3p22, 8, 4solid2.3290 g/cc2.57 g/cc1687 K, 1414 °C, 2577 °F3538 K, 3265 °C, 5909 °F(25 °C) 19.789 J/molK50.21 kJ/mol359 kJ/mol(300 K) 149 W/mK(20 °C) 103 Ωm1.12 eV4, 3 , 2 , 1 -1, -2, -3, -4 (amphoteric oxide)1.91st: 786.5 kJ/mol111 pm210 pmdiamond cubicdiamagnetic(20 °C) 8433 m/s(25 °C) 2.6 µm/mK111 pm185 GPa52 GPa100 GPa70.28
93SmSamarium626Lanthanoid7440-19-9150.36(2)g/mlanthanides150.36(2) g·mol−1[Xe] 6s2 4f62, 8, 18, 24, 8, 2silvery whitesolid7.52 g/cc7.16 g/cc1345 K (1072 °C, 1962 °F)2067 K (1794 °C, 3261 °F)(25 °C) 29.54 J/molK8.62 kJ/mol165 kJ/mol(300 K) 13.3 W/mK(r.t.) (α, poly) 0.940 µΩm3, 2 (mildly basic oxide)1.171st: 544.5 kJ/mol198±8 pmrhombohedralparamagnetic(20 °C) 2130 m/s(r.t.) (α, poly) 12.7 µm/(m·K)180 pm(α form) 49.7 GPa(α form) 19.5 GPa(α form) 37.8 GPa(α form) 0.274412 MPa441 MPa
94SnTin50514Poor metal7440-31-5118.710(7)g/mpoor metals118.710(7) g·mol−1[Kr] 4d10 5s2 5p22, 8, 18, 18, 4silvery lustrous graysolid(gray) 5.769 g/cc6.99 g/cc505.08 K (231.93 °C, 449.47 °F)2875 K (2602 °C, 4716 °F)(25 °C) (white) 27.112 J/molK(white) 7.03 kJ/mol(white) 296.1 kJ/mol(300 K) 66.8 W/mK(0 °C) 115 nΩm4, 2, -4 (amphoteric oxide)1.961st: 708.6 kJ/mol139±4 pm217 pmTetragonal (white), diamond cubic (gray)(gray)diamagnetic, (white) paramagnetic(r.t.) (rolled) 2730 m·s−1(25 °C) 22.0 µm/mK140 pm50 GPa18 GPa58 GPa1.50.3651 MPa
95SrStrontium3852Alkaline earth metal7440-24-687.62(1)g/malkaline earth metals87.62(1) g·mol−1[Kr] 5s22, 8, 18, 8, 2silvery white metallicsolid2.64 g/cc2.375 g/cc1050 K (777 °C, 1431 °F)1655 K (1382 °C, 2520 °F)(25 °C) 26.4 J/molK7.43 kJ/mol136.9 kJ/mol(300 K) 35.4 W/mK(20 °C) 132 n Ωm2, 1 (strongly basic oxide)0.951st: 549.5 kJ/mol195±10 pmcubic face centeredparamagnetic(25 °C) 22.5 µm/mK215 pm6.1 GPa1.50.28
96TaTantalum7365Transition metal7440-25-7180.9479(1)g/mtransition metals180.94788(2) g·mol−1[Xe] 4f14 5d3 6s22, 8, 18, 32, 11, 2gray bluesolid16.69 g/cc15 g/cc3290 K (3017 °C, 5463 °F)5731 K (5458 °C, 9856 °F)(25 °C) 25.36 J/molK36.57 kJ/mol732.8 kJ/mol(300 K) 57.5 W/mK(20 °C) 131 n Ωm5, 4, 3, 2, -1 (mildly acidic oxide)1.51st: 761 kJ/mol170±8 pmbody centered cubicparamagnetic(20 °C) 3400 m/s(25 °C) 6.3 µm/mK146 pm186 GPa69 GPa200 GPa6.50.34873 MPa800 MPa
97TbTerbium656Lanthanoid7440-27-9158.92535(2)g/mlanthanides158.92535(2) g·mol−1[Xe] 4f9 6s22, 8, 18, 27, 8, 2silvery whitesolid8.23 g/cc7.65 g/cc1629 K (1356 °C, 2473 °F)3503 K (3230 °C, 5846 °F)(25 °C) 28.91 J/molK10.15 kJ/mol293 kJ/mol(300 K) 11.1 W/mK(r.t.) (α, poly) 1.150 µΩm4, 3, 2, 1 (weakly basic oxide)? 1.21st: 565.8 kJ/mol194±5 pmhexagonalparamagnetic at 300 K(20 °C) 2620 m/s(r.t.) (α, poly) 10.3 µm/(m·K)177 pm(α form) 55.7 GPa(α form) 22.1 GPa(α form) 38.7 GPa(α form) 0.261863 MPa677 MPa
98TcTechnetium4357Transition metal7440-26-898.9063g/mtransition metals[98](0) g·mol−1[Kr] 4d5 5s22, 8, 18, 13, 2silvery gray metalsolid11 g/cc2430 K (2157 °C, 3915 °F)4538 K (4265 °C, 7709 °F)(25 °C) 24.27 J/molK33.29 kJ/mol585.2 kJ/mol(300 K) 50.6 W/mK7, 6, 5, 4, 3, 2, 1, -1, -3 (strongly acidic oxide)1.91st: 702 kJ/mol147±7 pmhexagonalParamagnetic136 pm-53 kJ/mol
99TeTellurium52516Metalloid13494-80-9127.60(3)g/mmetalloids127.60(3) g·mol−1[Kr] 5s2 4d10 5p42, 8, 18, 18, 6silvery lustrous graysolid6.24 g/cc5.70 g/cc722.66 K (449.51 °C, 841.12 °F)1261 K (988 °C, 1810 °F)(25 °C) 25.73 J/molK17.49 kJ/mol114.1 kJ/mol(300 K) (1.97–3.38) W/mK6, 5, 4, 2, -2 (mildly acidic oxide)2.11st: 869.3 kJ/mol138±4 pm206 pmhexagonaldiamagnetic(20 °C) 2610 m/s140 pm43 GPa16 GPa65 GPa2.25180 MPa
100ThThorium907Actinoid7440-29-1232.03806(2)g/mActinides232.0381(2) g·mol−1[Rn] 6d2 7s22, 8, 18, 32, 18, 10, 2silvery whitesolid11.7 g/cc2115 K (1842 °C, 3348 °F)5061 K (4788 °C, 8650 °F)(25 °C) 26.230 J/molK13.81 kJ/mol514 kJ/mol(300 K) 54.0 W/mK(0 °C) 147 nΩm4, 3, 2 (weakly basic oxide)1.31st: 587 kJ/mol206±6 pmface centered cubicparamagnetic(20 °C) 2490 m/s(25 °C) 11.0 µm/mK179 pm79 GPa31 GPa54 GPa30.27350 MPa400 MPa
101TiTitanium2244Transition metal7440-32-647.867(1)g/mtransition metal4, 4, d47.867(1) g·mol−1[Ar] 3d2 4s22, 8, 10, 2solid4.506 g/cc4.11 g/cc1941 K, 1668 °C, 3034 °F3560 K, 3287 °C, 5949 °F(25 °C) 25.060 J/molK14.15 kJ/mol425 kJ/mol(300 K) 21.9 W/mK(20 °C) 0.420 µΩm4, 3, 2, 1 (amphoteric oxide)1.541st: 658.8 kJ/mol160±8 pmhexagonalparamagnetic(r.t.) 5,090 m·s−1(25 °C) 8.6 µm/mK147 pm116 GPa44 GPa110 GPa60.32970 MPa716 MPa
102TlThallium81613Poor metal7440-28-0204.3833(2)g/mpoor metals204.3833(2) g·mol−1[Xe] 4f14 5d10 6s2 6p12, 8, 18, 32, 18, 3silvery whitesolid11.85 g/cc11.22 g/cc577 K (304 °C, 579 °F)1746 K (1473 °C, 2683 °F)(25 °C) 26.32 J/molK4.14 kJ/mol165 kJ/mol(300 K) 46.1 W/mK(20 °C) 0.18 µ Ωm3, 1 (mildly basic oxide)1.621st: 589.4 kJ/mol170±8 pm196 pmhexagonaldiamagnetic(20 °C) 818 m/s(25 °C) 29.9 µm/mK170 pm8 GPa2.8 GPa43 GPa1.20.4526.4 MPa
103TmThulium696Lanthanoid7440-30-4168.93421(2)g/mlanthanides168.93421(2) g·mol−1[Xe] 4f13 6s22, 8, 18, 31, 8, 2silvery graysolid9.32 g/cc8.56 g/cc1818 K (1545 °C, 2813 °F)2223 K (1950 °C, 3542 °F)(25 °C) 27.03 J/molK16.84 kJ/mol247 kJ/mol(300 K) 16.9 W/mK(r.t.) (poly) 676 nΩm2, 3, 4 (basic oxide)1.251st: 596.7 kJ/mol190±10 pmhexagonalparamagnetic at 300 K(r.t.) (poly) 13.3 µm/(m·K)176 pm74.0 GPa30.5 GPa44.5 GPa0.213520 MPa471 MPa
104UUranium927Actinoid7440-61-1238.02891(3)g/mactiniden/a, 7, f238.02891(3) g·mol−1[Rn] 5f3 6d1 7s22, 8, 18, 32, 21, 9, 2solid19.1 g/cc17.3 g/cc1405.3 K, 1132.2 °C, 2070 °F4404 K, 4131 °C, 7468 °F(25 °C) 27.665 J/molK9.14 kJ/mol417.1 kJ/mol(300 K) 27.5 W/mK(0 °C) 0.280 µΩm6, 5, 4, 3 (weakly basic oxide)1.381st: 597.6 kJ/mol196±7 pm186 pmorthorhombicparamagnetic(20 °C) 3155 m/s(25 °C) 13.9 µm/mK156 pm208 GPa111 GPa100 GPa0.23
105UubUnunbium112712Transition metal54084-26-3285g/mtransition metals[285] g·mol−1[Rn] 5f14 6d10 7s22, 8, 18, 32, 32, 18, 2unknownunknown
106UuhUnunhexium116716Poor metal54100-71-9293g/mpresumably poor metal[293] g·mol−1[Rn] 5f14 6d10 7s2 7p42, 8, 18, 32, 32, 18, 6
107UuoUnunoctium118718Noble gas54144-19-3294g/mUnknown18, 7, p(294) g·mol−1[Rn] 5f14 6d10 7s2 7p62, 8, 18, 32, 32, 18, 8Unknown(predicted) 13.65 g/cc(extrapolated) 320–380 K, 50–110 °C, 120–220 °F(extrapolated) 439 K, 6.8 MPa(extrapolated) 23.5 kJ/mol(extrapolated) 19.4 kJ/mol0, +2, +41st: (calc.) 820–1130 kJ/mol(extrapolated) 230 pmUnknown(predicted) 152 pm
108UupUnunpentium115715Poor metal54085-64-2291g/mpresumably poor metals[288] g·mol−1[Rn] 5f14 6d10 7s2 7p32, 8, 18, 32, 32, 18, 5
109UuqUnunquadium114714Poor metal54085-16-4289g/mUnknown, suspected to be a noble gas[289] g·mol−1[Rn] 5f14 6d10 7s2 7p22, 8, 18, 32, 32, 18, 4unknownunknown
110UusUnunseptium117717Halogen87658-56-8295g/mUnknownUnknown g·mol−12,8,18,32,32,18,7UnknownUnknown
111UutUnuntrium113713Poor metal54084-70-7287g/mpresumably poor metals[284] g·mol−1[Rn] 5f14 6d10 7s2 7p12, 8, 18, 32, 32, 18, 3possibly light or dark elementpresumably a solid
112VVanadium2345Transition metal7440-62-250.9415(1)g/mtransition metal5, 4, d50.9415(1) g·mol−1[Ar] 3d3 4s22, 8, 11, 2solid6.0 g/cc5.5 g/cc2183 K, 1910 °C, 3470 °F3680 K, 3407 °C, 6165 °F(25 °C) 24.89 J/molK21.5 kJ/mol459 kJ/mol(300 K) 30.7 W/mK(20 °C) 197 nΩm5, 4, 3, 2, 1, -1 (amphoteric oxide)1.631st: 650.9 kJ/mol153±8 pmbody-centered cubicparamagnetic(20 °C) 4560 m/s(25 °C) 8.4 µm/mK134 pm128 GPa47 GPa160 GPa6.70.37
113WTungsten7466Transition metal7440-33-7183.84(1)g/mtransition metals183.84 (1) g·mol−1[Xe] 4f14 5d4 6s22, 8, 18, 32, 12, 2grayish white, lustroussolid19.25 g/cc17.6 g/cc3695 K (3422 °C, 6192 °F)5828 K (5555 °C, 10031 °F)13892 K, {{{mpa}}} MPa(25 °C) 24.27 J/molK52.31 kJ/mol806.7 kJ/mol(300 K) 173 W/mK(20 °C) 52.8 n Ωm6, 5, 4, 3, 2, 1, 0, −1, -2 (mildly acidic oxide)2.361st: 770 kJ/mol162±7 pmbody centered cubicparamagnetic(r.t.) (annealed) 4290 m·s−1(25 °C) 4.5 µm/mK139 pm411 GPa161 GPa310 GPa7.50.283430 MPa2570 MPa
114XeXenon54518Noble gas7440-63-3131.293(6)g/mnoble gases18, 5, p131.293(6) g·mol−1[Kr] 5s2 4d10 5p62, 8, 18, 18, 8gas5.894 g/L(101.325 kPa) 161.4 K, −111.7 °C, −169.1 °F(101.325 kPa) 165.03 K, −108.12 °C, −162.62 °F161.405 K (-112°C), 81.6 kPa289.77 K, 5.841 MPa(100 kPa, 25 °C) 20.786 J/molK(101.325 kPa) 2.27 kJ/mol(101.325 kPa) 12.64 kJ/mol(300 K) 5.65x10-3 W/mK0, +1, +2, +4, +6, +8 (rarely more than 0) (weakly acidic oxide)2.61st: 1170.4 kJ/mol140±9 pm216 pmface-centered cubicdiamagnetic(liquid) 1090 m/s; (gas) 169 m/s
115YYttrium3953Transition metal7440-65-588.90585(2)g/mtransition metals88.90585(2) g·mol−1[Kr] 4d1 5s22, 8, 18, 9, 2silvery whitesolid4.472 g/cc4.24 g/cc1799 K (1526 °C, 2779 °F)3609 K (3336 °C, 6037 °F)(25 °C) 26.53 J/molK11.42 kJ/mol365 kJ/mol(300 K) 17.2 W/mK(r.t.) (α, poly) 596 nΩm3, 2, 11.221st: 600 kJ/mol190±7 pmhexagonalparamagnetic(20 °C) 3300 m/s(r.t.) (α, poly) 10.6 µm/(m·K)180 pm63.5 GPa25.6 GPa41.2 GPa0.243589 MPa
116YbYtterbium706Lanthanoid7440-64-4173.054(5)g/mlanthanides173.04(3) g·mol−1[Xe] 4f14 6s22, 8, 18, 32, 8, 2silvery whitesolid6.90 g/cc6.21 g/cc1097 K (824 °C, 1515 °F)1469 K (1196 °C, 2185 °F)(25 °C) 26.74 J/molK7.66 kJ/mol159 kJ/mol(300 K) 38.5 W/mK(r.t.) (β, poly) 0.250 µΩm3, 2 (basic oxide)? 1.11st: 603.4 kJ/mol187±8 pmcubic face centeredparamagnetic(20 °C) 1590 m/s(r.t.) (β, poly) 26.3 µm/(m·K)176 pm(β form) 23.9 GPa(β form) 9.9 GPa(β form) 30.5 GPa(β form) 0.207206 MPa343 MPa
117ZnZinc30412Transition metal7440-66-665.38(2)g/mpost-transition metal12, 4, d65.38(4) g·mol−1[Ar] 3d10 4s22, 8, 18, 2solid7.14 g/cc6.57 g/cc692.68 K, 419.53 °C, 787.15 °F1180 K, 907 °C, 1665 °F(25 °C) 25.470 J/molK7.32 kJ/mol123.6 kJ/mol(300 K) 116 W/mK(20 °C) 59.0 nΩm+2, +1, 0 (amphoteric oxide)1.651st: 906.4 kJ/mol122±4 pm139 pmhexagonaldiamagnetic(r.t.) (rolled) 3850 m·s−1(25 °C) 30.2 µm/mK134 pm108 GPa43 GPa70 GPa2.50.25412 MPa
118ZrZirconium4054Transition metal7440-67-791.224(2)g/mtransition metals91.224(2) g·mol−1[Kr] 4d2 5s22, 8, 18, 10, 2silvery whitesolid6.52 g/cc5.8 g/cc2128 K (1855 °C, 3371 °F)4682 K (4409 °C, 7968 °F)(25 °C) 25.36 J/molK14 kJ/mol573 kJ/mol(300 K) 22.6 W/mK(20 °C) 421 n Ωm4, 3, 2, 1, (amphoteric oxide)1.331st: 640.1 kJ/mol175±7 pmhexagonal close-packedparamagnetic(20 °C) 3800 m/s(25 °C) 5.7 µm/mK160 pm68 GPa33 GPa50.34903 MPa650 MPa
 
Materials and Chemical Elements

Materials and Chemical Elements
idxSymbolNameCAS_NumberOther_namesMolecular_formulaCoordination_geometryCrystal_structureAppearancePhaseMolar_massRhoTmeltTboilKtSpecific_heat_capacityPvaporEg_300KMu_electronRefractiveIndexSpectral_dataDipole_momentSolubility_waterSolubilityStd _enthalpy_of_formationStandard_molar_entropyAnionsCationsAutoignition temperatureFlash_pointAcidityBasicityViscosity
1(BiO)2CO3bismuth(III) subcarbonate5892-10-4
2(NaPO3)6sodium hexametaphosphate10124-56-8Calgon S; Glassy sodium; Graham's Salt; Hexasodium metaphosphate; Metaphosphoric acid, hexasodium salt(NaPO3)6White, odorless, crystalline powder611.77 g/mol2.484 g/cc550 °C1500 °CsolubleTrisodium phosphate Tetrasodium pyrophosphate Pentasodium triphosphateNon-flammable
3(NbF5)4niobium(V) fluoride7783-68-8
4(NH4)2SO4ammonium sulfate7783-20-2ammonium sulfate (2:1) diammonium sulfate sulfuric acid diammonium salt mascagnite Actamaster Dolamin(NH4)2SO4Fine white hygroscopic granules or crystals.132.14 g/mol1.769 g/cc (20 °C)235-280 °C, 508-553 K, 455-536 °F (decomposes)70.6 g/100 mL (0 °C) 74.4 g/100 mL (20 °C) 103.8 g/100 mL (100 °C)[1]insoluble in acetone, alcohol and etherAmmonium thiosulfate Ammonium sulfite Ammonium bisulfate Ammonium persulfateSodium sulfate Potassium sulfateNon-flammable
5(OsF5)4osmium(V) fluoride31576-40-6
6Ag2C2silver acetylide7659-31-6C2Ag2white solid239.76 g mol−1120 °Csolubleflammable
7Ag2C2O4silver oxalate533-51-7Silver EthanedioateC2Ag2O4white powder303.755 g/cc140 °C decomp.3.270*10–3 g/100mL
8Ag2Cl2silver(II) dichloride75763-82-5
9Ag2CO3silver carbonate534-16-7Silver(I)CarbonateAg2CO3yellow-yellow green275.75 g/mol6.077 g/cc, solid210°C decomposes to Ag2O.0032 g/100 mLsoluble in acids
10Ag2Cr2O7silver dichromate7784-02-3
11Ag2CrO4silver chromate7784-01-2Ag2CrO4brown-red powder331.73 g/mol5.625 g/cc7.8x10-5 mol cm-3soluble in nitric acid, ammonia, alkali cyanides and chromates [1]
12Ag2Fsilver subfluoride1302-01-8Ag2FBronze-colored crystals with green luster234.734 g/mol8.6 g/cc, solid90 °C. decomposition
13Ag2MoO4silver molybdate13765-74-7Ag2MoO4yellow crystals375.67.77 g/mol6.18 g/cc, solid483 °Cslightly soluble
14Ag2Osilver oxide20667-12-3Silver rust, Argentous oxideAg2Ocubicblack/brown cubic crystals231.735 g/mol7.14 g/cc280°C (decomposition)65.9 J/molK[3]0.0025 g/100 ml[1]soluble in acid, alkali insoluble in alcohol, ethanol [2]-31.1 kJ·mol-1121.3 J/molK
15Ag2Ssilver sulfide21548-73-2Ag2SorthogonalBlack cubic crystal247.8 g/mol7.23 g/cc1098 K (825 °C) (825 °C)8.5−15g in 1L watersoluble in nitric acid, sulfuric acids-32.6 kJ/mol144.0 J/mol·K
16Ag2Sesilver selenide1302-09-6NaumanniteAg2Se294.7 g/mol8.216 g/cm³, solid880 °C
17Ag2SeO3silver selenite7784-05-6Silver(I) seleniteAg2SeO3crystalline needles342.69 g/mol5.930 g/cc530°Cdecomposes above 550 °Cslightly solublesoluble in acids
18Ag2SeO4silver selenate7784-07-8
19Ag2SO4silver sulfate10294-26-5Sulfuric acid, disilver(1+) saltAg2SO4colourless crystals311.799 g/mol5.45 g/cc [1]652 °C, 925 K, 1206 °F1085 °C, 1358 K, 1985 °F1.2 g/100 mLdissolves in nitric acid
20Ag2Tesilver telluride12002-99-2HessiteAg2TeMonoclinic, mP12grey-black crystals341.3364 g/mol8.318 g/cm³955 °C
21Ag3Br2silver dibromide11078-32-3
22Ag3Br3silver tribromide11078-33-4
23Ag3Cl3silver(III) trichloride12444-96-1
24Ag3I3silver(III) triiodide37375-12-5
25Ag3PO4silver phosphate7784-09-0
26Ag3SbS3silver thioantimonate15983-65-0
27AgAlCl4silver tetrachloroaluminate27039-77-6
28AgBrsilver bromide7785-23-1bromargyrite bromyrite silver(I) bromideAgBrPale yellow solid photosensitive187.77 g/mol6.473 g/cc, solid432 °C1502°C (decomposes)270 J/kgK2.5 eV4000 cm2/V-s2.25314 μg/100 ml (20 °C)insoluble in alcohol, most acids sparingly soluble in ammonia soluble in alkali cyanide solutions−99.5 kJ/mol107.1 J.K−1.mol−1Silver(I) fluoride Silver chloride Silver iodideCopper(I) bromide Mercury(I) bromide
29AgBrO3silver bromate7783-89-3AgBrO3white powder photosensitive235.770 g/mol5.206 g/cc309 °C, 582 K, 588 °F0.167 g/100 mL
30AgC2H3O2silver acetate563-63-3Acetic acid, silver (1+) saltAgC2H3O2white to slightly grayish powder slightly acidic odor166.91 g/mol3.26 g/cc, soliddecomposes at 220°C1.02 g/100 g (20 °C)
31AgClsilver chloride7783-90-6cerargyrite, chlorargyrite, horn silverAgClhaliteWhite Solid143.32 g mol−15.56 g.cm3457 °C1547 °C2.071520 μg/100 g at 50 °Cinsoluble in alcohol, dilute acid soluble in ammonia, concentrated sulfuric acid, alkali cyanide, NH4CO3, KBr, sodium thiosulfate−127.01 kJ mol−196.25 J mol−1 K−1silver(I) fluoride, silver bromide, silver iodide
32AgClO3silver chlorate7783-92-8chloric acid silver saltAgClO3white crystals191.319 g/mol4.443 g/cc, solid230 °C250 °C decomp.
33AgClO4silver perchlorate7783-93-9Perchloric acid, silver(1+) saltAgClO4Colorless hygroscopic crystals207.319 g/mol2.806 g/cc486 °C (decomp.)5570 g/L
34AgCNsilver cyanide506-64-9Argentous cyanideCNAglinearhexagonalcolorless, gray (impure) crystals133.89 g/mol3.95 g/cc320 °Cinsolubleinsoluble in alcohol, dilute acid soluble in concentrated ammonia, boiling nitric acid
35AgFsilver fluoride7775-41-9
36AgF2silver difluoride7775-41-9silver difluorideAgF2tetragonally elongated octahedral coordinationorthorhombicwhite or grey crystalline powder, hygroscopic145.865 g/mol4.58 g/cc690 °C (963 K)decomposes at 700 °C (973 K)Decomposes, violentlysilver(I,III) oxidecopper(II) fluoride, palladium(II) fluoride, cadmium(II) fluoride
37AgIsilver iodide7783-96-2Silver(I) iodideAgIyellow, crystalline solid234.77 g/mol5.675 g/cc, solid558 °C1506 °C3 × 10−7g/100mL (20 °C)-62.4 kJ/mol
38AgIO3silver iodate7783-97-3AgIO3white crystals282.77 g/mol5.53 g/cm³, solid>200 °Cinsolublesilver iodide silver chloratesodium iodate potassium iodate
39AgMnO4silver permanganate7783-98-4
40AgN3silver azide13863-88-2AgN3colourless solid149.888 g/mol4.42 g/cc, solid250 °C, explosivedecomp.
41AgNO3silver nitrate7761-88-8Nitric acid silver(1+) saltAgNO3white solid169.87 g mol−1212 °C, 485 K, 414 °F444 °C, 717 K, 831 °F (decomp.)very solublesoluble in ethanol and acetone
42AgOsilver(I,III) oxide1301-96-8silver peroxide, argentic oxide, silver suboxide, divasilAgO Ag2O.Ag2O3grey-black powder diamagnetic123.87 g/mol7.48 g/cc<100 °C, decomposition.0027 g/100 mLsoluble in alkalies
43AgONCsilver fulminate5610-59-3AgCNO149.885 g mol−1170 °C
44AgReO4silver perrhenate7784-00-1
45AgSNCsilver thiocyanate14104-20-2
46Al(CHO2)3aluminium formate7360-53-4
47Al(OH)3aluminium hydroxide21645-51-2Aluminium(III) hydroxide, Hydrated aluminaAl(OH)3White amorphous powder.78.00 g/mol2.42 g/cm³, solid.300 °C0.0001 g/100 mL (20 °C)soluble in acids, alkalies, HCl, HSO4None.Non-flammable.>7
48Al2(SO4)3aluminium sulfate10043-01-3Cake alum Filter alum Papermaker's alum Alunogenite Sulfuric acid, aluminum salt (3:2)Al2(SO4)3monoclinic (hydrate)white crystalline solid hygroscopicPhase behaviour Solid, liquid, gas342.15 g/mol (anhydrous) 648.41 g/mol (octadecahydrate)2.672 g/cc (anhydrous) 1.62 g/cc (octadecahydrate)770 °C (decomp, anhydrous) 86.5 °C (octadecahydrate)1.47 [1]UV, IR, NMR, MS31.2 g/100 mL (0 °C) 36.4 g/100 mL (20 °C) 89.0 g/100 mL (100 °C)slightly soluble in alcohol, dilute mineral acidsGallium sulfate Magnesium sulfate3.3-3.6
49Al2O3aluminium oxide1344-28-1Al2O3octahedralTrigonal, hR30, SpaceGroup = R-3c, No. 167white solidPhase behaviour Solid, liquid, gas101.9613 g/mol3.95-4.1 g/cc2072 °C [1]2980 °C[2]nω=1.768 - 1.772 nε=1.760 - 1.763 Birefringence 0.008UV, IR, NMR, MSinsoluble−1675.7 kJ·mol−150.92 J·mol−1·K−1aluminium hydroxideboron trioxide gallium oxide indium oxide thallium oxidenon-flammable
50Al2S3aluminium sulfide1302-81-4Aluminum sulfideAl2S3Trigonal, hP30, SpaceGroup = P61, No. 169gray solid150.158 g/mol2.02 g/cc, solid1100°C1500°C (sublimes)decomposes
51Al2Se3aluminium selenide1302-82-5Aluminium(III) selenideAl2Se3Monoclinic, mS20, SpaceGroup = Cc, No. 9yellow to brown powder290.84 g/mol3.437 g/cc960°Cdecomposes
52AlAsaluminium arsenide22831-42-1AlAsTetrahedralZinc Blendeorange crystals101.9031 g/mol3.81 g/cc1740 °C0.9 W/(cm*K) (300 K)2.12 eV (indirect)[1]200 cm2/(V*s) (300 K)3 (infrared)
53AlB2aluminium boride12041-50-8
54AlBr3aluminium bromide7727-15-3aluminium(III) bromide aluminium tribromideAlBr3 Al2Br6white to pale yellow crystalline solid266.72 g/mol3.205 g/cc97.8 °C265 °Creactsslightly soluble in methanol, diethyl ether, acetonealuminium trichloride aluminium triiodideboron tribromide
55AlBr3-6H2Oaluminium bromide hexahydrate7784-11-4
56AlCl3aluminium chloride7446-70-0aluminum trichlorideAlCl3Octahedral (solid) Tetrahedral (liquid)Monoclinic, mS16white or pale yellow solid, hygroscopicPhase behaviour Solid, liquid, gas133.34 g/mol (anhydrous) 241.43 g/mol (hexahydrate)2.48 g/cc (anhydrous) 1.3 g/cc (hexahydrate)192.4 °C *anhydrous) 0 °C (hexahydrate)120 °C (hexahydrate)UV, IR, NMR, MS43.9 g/100 ml (0 °C) 44.9 g/100 ml (10 °C) 45.8 g/100 ml (20 °C) 46.6 g/100 ml (30 °C) 47.3 g/100 ml (40 °C) 48.1 g/100 ml (60 °C) 48.6 g/100 ml (80 °C) 49 g/100 ml (100 °C)soluble in hydrogen chloride, ethanol, chloroform, carbon tetrachloride slightly soluble in benzeneAluminium fluoride Aluminium bromide Aluminium iodideBoron trichloride Gallium trichloride Indium(III) chloride Thallium(III) chloride Magnesium chloride
57AlCl3-6H2Oaluminium chloride hexahydrate7784-13-6
58AlF3aluminium fluoride7784-18-1Aluminium(III) fluoride Aluminum trifluorideAlF3Rhombohedral, hR24white, crystalline solid odorless83.9767 g/mol (anhydrous) 101.022 g/mol (monohydrate) 138.023 (trihydrate)2.88 g/cm (anhydrous) 2.1 g/cc (monohydrate) 1.914 g/cc (trihydrate)1291 °C (anhydrous)0.56 g/100 mL (0 °C) 0.67 g/100 mL (20 °C) 1.72 g/100 mL (100 °C)
59AlI3aluminium iodide7784-23-8Aluminium(III) iodide Aluminium triiodide Aluminum iodide Aluminum triiodideAlI3colorless powder but impure samples are often brown407.69495 g/mol (anhydrous) 515.786 g/mol (hexahydrate)3.98 g/cc (anhydrous) 2.63 g/cc (hexahydrate)189.4 °C (anhydrous) 185 °C, decomp. (hexahydrate)360 °C, sublimesreacts violently (anhydrous) soluble (hexahydrate)
60AlNaluminium nitride24304-00-5Aluminum nitrideAlNTetrahedralWurtzitewhite to pale-yellow solid40.9882 g/mol3.260 g/cc2200 °C2517 °C (decomp)285 W/m·K740 J Kg-1 K-16.2 eV (direct)300 cm2/(V*s)1.9-2.2decomposes
61AlPaluminium phosphide20859-73-8Aluminium(III) phosphide Aluminium monophosphide Phostoxin FumitoxinAlPyellow or gray crystals57.9552 g/mol2.85 g/cm³, solid2530 °C2.5 eV (indirect)[1]2.75 (IR), ~3 (Vis) [1]reacts>800 °C
62AlPO4aluminium phosphate7784-30-7Aluminium monophosphate Phosphoric acid, aluminum salt (1:1)AlPO4white, crystalline powder121.9529 g/mol2.566 g/cc, solid1800 °Cdecomposes1.546 [1]insolublevery slightly soluble in HCl and HNO3
63AlSbaluminium antimonide25152-52-7AlSbblack crystals148.742 g/mol4.26 g/cc1060 °C2467 °C1.58 eV3.3insoluble590 °C
64As2H4diarsenic tetrahydride15942-63-9
65As2I4arsenic diiodide13770-56-4
66As2O3arsenic trioxide1327-53-3Arsenic(III) oxide, Arsenic sesquioxide, Arsenicum album, Arseneous oxide, Arseneous anhydride, White arsenic[1]As2O3cubic (α)<180°C monoclinic (β) >180°CWhite solidPhase behaviour Solid, liquid, gas197.841 g/mol3.74 g/cc312.3°C465°CUV, IR, NMR, MSZero2 g/100 ml (25°C) see textsoluble in dilute acids and alkalies, practically insoluble in organic solvents [2]−657.4 kJ/mol? J.K–1.mol–1Arsenic trisulfidePhosphorus trioxide Antimony trioxide9.2
67As2O5arsenic pentoxide1303-28-2Arsenic(V) oxide Arsenic oxide Arsenic anhydrideAs2O5white hygroscopic powder229.8402 g/mol4.32 g/cc315 °C (decomposes)59.5 g/100 mL (0 °C) 65.8 g/100 mL (20 °C) 8.20 g/100 mL (100 °C)soluble in alcoholPhosphorus pentoxide Antimony pentoxide7
68As2P2arsenic diphosphide12512-03-7
69As2S3arsenic trisulfide1303-33-9Arsenic(III) sulfide OrpimentAs2S3yellow-orange powder or crystals246.041 g/mol3.43 g/cc, solid310 °C707 °CinsolubleAs2O3P4S6
70As2S4arsenic tetrasulfide1303-32-8
71As2S5arsenic pentasulfide1303-34-0Arsenic(V) sulfide diarsenic pentasulfideAs2S5yellow-brown glassy solid310.14 g/mol300 °C500 °C (decomp)0.0014 g/100 mL (0 °C)dissolves in nitric acidarsenic pentoxidephosphorus pentasulfide
72As2Searsenic hemiselenide1303-35-1
73As2Se3arsenic triselenide1303-36-2Arsenic(III) selenideAs2Se3Monoclinic, mP20, SpaceGroup = P21/c, No. 14 mP20 P21/c 14brown-black powder386.72 g/mol4.75 g/cc260 °Cinsolublediarsenic trioxide, diarsenic trisulfide, arsenic tribromide, arsenic(III) tellurideantimony(III) selenide
74As2Se5arsenic pentaselenide1303-37-3
75As2Te3arsenic tritelluride12044-54-1
76As3O4arsenic tetraoxide83527-53-1
77As3Parsenic triphosphide12512-11-7
78As4S4tetraarsenic tetrasulfide12279-90-2
79AsBr3arsenic tribromide7784-33-0Arsenic(III) bromideAsBr3white to pale yellow crystalline solid314.634 g/mol3.40 g/cc31.1 °C221 °C2.3decompose
80AsBrOarsenic oxybromide82868-10-8
81AsCl3arsenic trichloride7784-34-1Arsenic(III) chloride, Arsenous trichloride, Butter of arsenic, de Valagin's solution[1]AsCl3colourless liquid181.28 g/mol2.163 g/cc, liquid-16.2 °C, 257 K, 3 °F130.2 °C, 403 K, 266 °F1.6006decomposessoluble in alcohol, ether, HCl, HBr9.77 x 10-6 Pa s
82AsCl3Oarsenic oxychloride60646-36-8
83AsCl5arsenic pentachloride22441-45-8AsCl5252.1866 g/mol
84AsF3arsenic trifluoride7784-35-2Arsenic trifluorideAsF3colorless liquid131.9168 g/mol2.666 g/cc[1]-8.5 ËÅ¡C60.4 ËÅ¡Cdecomposessoluble in alcohol, ether, benzene and ammonia solution-305.0 kJ/mol
85AsF5arsenic pentafluoride7784-36-3Arsenic(V) fluoride, Arsorane, pentafluoro-AsF5colorless gas169.9136 g mol-12.138 g cm-3[1]-79.8 ËÅ¡C[1]-52.8 ËÅ¡C[1]arsenic pentoxide, arsenic pentachloride
86AsH3arsenic trihydride7784-42-1Arseniuretted hydrogen, Arsenous hydride, hydrogen arsenideAsH3colourless gasPhase behaviour Solid, liquid, gas77.95 g/mol4.93 g/l, gas; 1.640 g/mL (−64 °C)−117 °C (157 K)−62.5 °C (210 K)UV, IR, NMR, MS0.20 D0.07 g/100 ml (25 °C)+66.4 kJ/mol223 kJ.K−1.mol−1flammable gas
87AsI2arsenic diiodide13770-56-4
88AsI3arsenic triiodide7784-45-4Arsenic(III) iodide Arsenic iodide, Donovan's solution[1]AsI3Rhombohedral, hR24, SpaceGroup = R-3, No. 148orange-red crystalline solid455.635 g/mol4.69 g/cc146 °C403 °C2.236 g/100 mLsoluble in alcohol, ether, CS2
89AsOarsenic monoxide12005-99-1
90AsO2arsenic dioxide12255-12-8
91AsParsenic monophosphide12255-33-3
92AsP3arsenic phosphide12511-95-4
93AsSe4arsenic tetraselenide12006-06-3
94Au(OH)3gold(III) hydroxide1303-52-2
95Au2(SeO4)3gold(III) selenate10294-32-3
96Au2O3gold(III) oxide1303-58-8Au2O3Orthorombic, oF40, SpaceGroup = Fdd2, No. 43[1]red-brown solid441.9311.34 g/cc at 20 °C[1]decomposes at 160 °Cinsoluble in water, soluble in hydrochloric and nitric acid
97Au2Sgold(I) sulfide1303-60-2
98Au2S3gold(III) sulfide1303-61-3
99Au2Se3gold(III) selenide1303-62-4
100Au4Cl8gold(I,III) chloride62792-24-9Gold chloride; mixed gold chloride; tetragold octachlorideAu4Cl8black solid1071.488 g/mol
101Au4F8gold(I,III) fluoride14270-21-9
102AuBrgold(I) bromide10294-27-6
103AuBr3gold(III) bromide10294-28-7Auric bromide Gold bromide Gold(III) bromide Gold tribromide Digold hexabromideAuBr3dark red to black crystalline436.69 g/mol97.5 °C
104AuClgold(I) chloride10294-29-8gold(I) chlorideAuClTetragonal, tI16yellow solid232.423 g/mol7.6 g/cc [1]170 °C298 °C (decomposes)very slightly solublesoluble in HCl, HBr
105AuCl3gold(III) chloride13453-07-1Auric chloride Gold trichlorideAuCl3 (exists as Au2Cl6)Square planarmonoclinicGolden, yellow crystalsPhase behaviour Solid, liquid, gas303.325 g/mol4.7 g/cc254 °C (527 K) (decomposes)UV, IR, NMR, MS68 g/100 ml (cold)soluble in ether, slightly soluble in liquid ammoniaGold(III) fluoride Gold(III) bromideGold(I) chloride Silver(I) chloride Platinum(II) chloride Mercury(II) chloride
106AuCNgold(I) cyanide506-65-0
107AuF3gold(III) fluoride14720-21-9gold trifluorideAuF3Hexagonal, hP24orange-yellow hexagonal crystals253.962 g/mol6.75 g/ccsublimes above 300°C-363.3 kJ/mol
108AuF5gold(V) fluoride57542-85-5gold pentafluorideAuF5red unstable solid291.959 g/mol60 °C (Decomposes)DecomposesSbF5, BrF5, IF5
109AuIgold(I) iodide10294-31-2
110AuI3gold(III) iodide31032-13-0
111AuSegold(II) selenide23331-11-5
112AuTegold(II) telluride37043-71-3
113B2Cl4diboron tetrachloride13701-67-2
114B2F4diboron tetrafluoride13965-73-6B2F4Colorless gas97.616 g/mol4.3 kg/m3 (gas)-56 °C, 217 K, -69 °F-34 °C, 239 K, -29 °F
115B2H6diboron hexahydride19287-45-7B2H6Tetrahedral (for boron)colorless gasPhase behaviour Solid, liquid, gas27.67 g/mol1.18 g/100 mL (15 °C) 1.216 g/100 mL (25 °C)−165.5 °C, 108 K, -266 °F-92.4 °C, 181 K, -134 °FUV, IR, NMR, MS0 DReactssoluble in CS2, diglyme and ethyl acetate [1]38 °Cflammable gas
116B2O3diboron trioxide1303-86-2boron oxide, diboron trioxide, boron sesquioxide, boric oxide, boria, anhydric boric acidB2O3white, glassy solidPhase behaviour Solid, liquid, gas69.6182 g/mol2.460 g/cc, liquid; 2.55 g/cc, trigonal; 3.11–3.146 g/cc, monoclinic450 °C (trigonal) 510 °C (tetrahedral)1680 °CUV, IR, NMR, MS2.2 g/100 mLpartially soluble in methanol~ 4
117B2S3diboron trisulfide12007-33-9Boron trisulfideB2S3B: planar, sp2monoclinic, mP40, SpaceGroup = P21/c, No. 14colorless crystals117.80 g/mol1.55 g/cc, solid563 °Cdecomposes at high Tdecomposes
118B4Cboron carbide12069-32-8Tetrabor B4-C B4C Black DiamondB4CRhombohedraldark gray or black powder, odorless55.255 g/mol2.52 g/cc, solid.2350 °C, 2623 K, 4262 °F3500 °C, 3773 K, 6332 °Finsoluble6-7 (20 °C)
119B4H10boron decahydride18283-93-7decaborane decaboron tetradecahydrideWhite crystals122.221 g/mol99.6 °C213°C149 °C
120Ba(AsO3)2barium arsenite125687-68-5
121Ba(AsO4)2barium arsenate56997-31-0
122Ba(C18H35O2)2barium stearate6865-35-6
123Ba(C2H3O2)2barium acetate543-80-6Barium diacetateBa(CH3COO)2White solid255.42.47g/ccDecomposesN/A55.8g/100g of water at 0°C
124Ba(CHO2)2barium formate541-43-5
125Ba(ClO3)2barium chlorate13477-00-4Chloric acid barium saltBa(ClO3)2white solid304.23 g/mol3.18 g/cc, solid414 °C27.5 g/ml (20 °C)
126Ba(ClO4)2barium perchlorate13465-95-7
127Ba(CN)2barium cyanide542-62-1
128Ba(HS)2barium hyrdosulfide25417-81-6
129Ba(MnO4)2barium permanganate7787-36-2
130Ba(NbO3)2barium niobate12009-14-2
131Ba(NO2)2barium nitrite13465-94-6
132Ba(NO3)2barium nitrate10022-31-8Barium dinitrate, , barium saltBa(NO3)2white crystalsPhase behaviour Solid, liquid, gas261.37 g/mol3.24 g/cc590 °C (decomp.)UV, IR, NMR, MS4.95 g/100 mL (0 °C) 10.5 g/100 mL (25 °C) 34.4 g/100 mL (100 °C)insoluble in alcohol
133Ba(OH)2barium hydroxide17194-00-2Ba(OH)2octahedralwhite solidPhase behaviour Solid, liquid, gas171.34 g/mol (anhydrous) 189.39 g/mol (monohydrate) 315.46 g/mol (octahydrate)3.743 g/cc (monohydrate) 2.18 g/cc (octahydrate, 16 °C)78 °C (octahydrate) 407 °C (anhydrous)780 °C1.50 (octahydrate)UV, IR, NMR, MSoctahydrate: 1.67 g/100 mL (0 °C) 3.89 g/100 mL (20 °C) 11.7 g/100 mL (50 °C)−944.7 kJ/molBarium oxide Barium peroxideCalcium hydroxide Strontium hydroxidenon-flammable-2.02
134Ba(PO3)2barium metaphosphate13466-20-1
135Ba(ReO4)2barium perrhenate13768-52-0
136Ba(SCN)2barium thiocyanate2092-17-3
137Ba(VO3)2barium vanadate22652-39-7
138Ba2P2O7barium pyrophosphate13466-21-2
139Ba3(CrO4)2barium dichromate12345-14-1
140Ba3(VO4)2barium orthovanadate39416-30-3
141Ba3N2barium nitride12047-79-9
142BaAl2O4barium aluminate12004-04-5
143BaB6barium boride12046-08-1
144BaBr2barium bromide10553-31-8BaBr2 (anhydrous) BaBr2·2H2O (dihydrate)orthorhombic, oP12, SpaceGroup = Pnma, No. 62White solid297.14 g/mol4.78 g/cc (anhydrous) 3.58 g/cc (dihydrate)857 °C1835 °C92.2 g/100 mL (0°C)−181.1 kcal/molBarium fluoride Barium chloride Barium iodideCalcium bromide Strontium bromide Lead bromide
145BaBr2-2H2Obarium bromide dihydrate7791-28-8
146BaC2barium carbide50813-65-5
147BaC2O4barium oxalate516-02-9BaC2O4225.34 g/mol2.658 g/cc400 °C (decomp)9.290e-3 g/100mL
148BaC4H4O6barium tartrate5908-81-6
149BaCl2barium chloride10361-37-2
150BaCl2-2H2Obarium chloride dihydrate10326-27-9
151BaCO3barium carbonate513-77-9WitheriteBaCO3white crystals197.34 g/mol4.286 g/cc811 °C1360 °C (decomp)1.60.0024 g/100 mL (20 °C)soluble in HCl, HNO3, ammonia, ethanol insoluble in H2SO4Magnesium carbonate Calcium carbonate Strontium carbonateNon-flammable
152BaCrO4barium chromate10294-40-3Barium chromate oxide, Chromic acid, (H2CrO4), barium salt (1:1)BaCrO4yellow powder253.37 g/mol4.498 g/ccdecomposes0.0002775 g/100 mL (20 °C)
153BaF2barium fluoride7787-32-8BaF2Fluorite (cubic), cF12white cubic crystals175.34 g/mol4.893 g/cc1368 °C2260 °C0.16 g/100 mL (20 °C)soluble in methanol, ethanolBarium chloride Barium bromide Barium iodideCalcium fluoride Strontium fluorideNon-flammable
154BaH2barium hydride13477-09-3
155BaHgI4barium tetraiodomercurate10048-99-4
156BaI2barium iodide13718-50-8Barium iodide, anhydrousBaI2 (anhydrous) BaI2·2H2O (dihydrate)Orthorhombic, oP12, SpaceGroup = Pnma, No. 62White orthorhombic crystals (anhydrous) colorless crystals (dihydrate)391.136 g/mol (anhydrous) 427.167 g/mol (dihydrate)5.15 g/cc (anhydrous) 5.0 g/cc (dihydrate)711°C (anhydrous) decomposes at 740°C (dihydrate)221 g/100 mLsoluble in ethanol, acetone-602.1 kJ·mol-1barium fluoride barium chloride barium bromidecalcium iodide magnesium chloride strontium bromide
157BaI2-2H2Obarium iodide dihydrate7787-33-9
158BaMnO4barium manganate7787-35-1
159BaMoO4barium molybdate7787-37-3
160BaN6barium azide18810-58-7
161BaObarium oxide1304-28-5Barium monoxide Barium protoxide Calcined barytaBaOOctahedralcubic, cF8white solidPhase behaviour Solid, liquid, gas153.33 g/mol5.72 g/cc, solid1923 °C~2000 °CUV, IR, NMR, MS3.48 g/100 mL (20 °C) 90.8 g/100 mL (100 °C)soluble in ethanol, dilute mineral acids and alkalies; insoluble in acetone and liquid ammoniaBarium hydroxide Barium peroxideCalcium oxide Strontium oxidenon-flammable
162BaO2barium peroxide1304-29-6Barium binoxide, Barium dioxide, Barium superoxideBaO26Tetragonal [2]Grey-white crystalline solid169.33 g/mol5.68 g/cc450 °C (723 K)800 °C (1073 K) (decomp. to BaO & O2)insoluble [1]
163BAsboron arsenide12005-69-5Bologna stoneBaSOctahedral (Ba2+); octahedral (S2–)Halite (cubic), cF8169.39 g/mol4.25 g/cc [1]1200 °Cdecomposes2.1552.88 g/cc (0 °C) 7.68 g/cc (20 °C) 60.3 g/100 mL (100 °C)insoluble in alcoholBarium oxideMagnesium sulfide Calcium sulfide Strontium sulfide
164BaSbarium sulfide21109-95-5Bologna stoneBaSOctahedral (Ba2+); octahedral (S2–)Halite (cubic), cF8169.39 g/mol4.25 g/cc [1]1200 °Cdecomposes2.1552.88 g/cc (0 °C) 7.68 g/cc (20 °C) 60.3 g/100 mL (100 °C)insoluble in alcoholBarium oxideMagnesium sulfide Calcium sulfide Strontium sulfide
165BaS2O3barium thiosulfate35112-53-9
166BaSebarium selenide1304-39-8
167BaSeO3barium selenite13718-59-7
168BaSeO4barium selenate7787-41-9
169BaSi2barium silicide1304-40-1
170BaSi2O5barium disilicate12650-28-1
171BaSiF6barium hexafluorosilicate17125-80-3
172BaSiO3barium metasilicate13255-26-0
173BaSnO3barium stannate12009-18-6
174BaSO3barium sulfite7787-39-5BaSO3white monoclinic crystals217.391 g/mol4.44 g/ccdecomposes0.0011 g/100 mLinsoluble in ethanol[1]Barium sulfate Barium fluoride Barium chloride Barium bromide Barium iodideCalcium sulfite Magnesium sulfite
175BAsO4boron arsenate13510-31-1BaSO4white crystalline233.43 g/mol4.50 g/cc1580 °C1600 °C (decomp)1.640.0002448 g/100 mL (20°C) 0.000285 g/100 mL (30 °C)soluble in alcohol, concentrated sulfuric acid
176BaSO4barium sulfate7727-43-7BaSO4white crystalline233.43 g/mol4.50 g/cc1580 °C1600 °C (decomp)1.640.0002448 g/100 mL (20°C) 0.000285 g/100 mL (30 °C)soluble in alcohol, concentrated sulfuric acid
177BaTiO3barium titanate12047-27-7BaTiO3Cubic, cP5, SpaceGroup = Pm-3m, No. 221white crystals233.192 g/mol6.02 g/cc, solid1625 °Cinsolubleslightly soluble in dilute mineral acids; dissolves in concentrated sulfuric acid and hydrofluoric acid
178BaWO4barium tungstate7787-42-0
179BaZrO3barium zirconate12009-21-1
180BBr3boron tribromide10294-33-4TribromoboraneBBr3colorless to amber liquid250.52 g/mol2.643 g/cc−46.3 °C, 227 K, -51 °F91.3 °C, 364 K, 196 °F0.2706 J/K7.2 kPa (20 °C)1.00207reacts violently-0.8207 kJ/g-18 °C
181BCl3boron trichloride10294-34-5Boron(III) chlorideBCl3Colorless gas, fumes in air117.17 g/mol1.326 g/cc-107.3 °C12.6 °C [1]1.00139zerodecomp.decomposes in ethanol soluble in CCl4Boron trifluoride Boron tribromide Boron triiodideAluminium chloride Gallium chloride-17 °C
182Be(BH4)2beryllium borohydride17440-85-6
183Be(C2H3O2)2beryllium acetate543-81-7
184Be(C5H7O2)2beryllium acetylacetonate10210-64-7
185Be(CHO2)2beryllium formate1111-71-3
186Be(NO3)2beryllium nitrate13597-99-4
187Be(NO3)2-3H2Oberyllium nitrate trihydrate7787-55-5
188Be(NO3)2-4H2Oberyllium nitrate tetrahydrate13510-48-0
189Be(OH)2beryllium hydroxide13327-32-7Hydrated berylliaBe(OH)2White solid.43.02678 g/mol1.92 g/cc [1]Decomposes at 1000°C.NA1.443 J/Knegligiblesoluble in acids-20.98 kJ/g
190Be2Cberyllium carbide506-66-1
191Be2SiO4beryllium silicate13598-00-0
192Be3(PO4)2beryllium phosphate13598-15-7
193Be3N2beryllium nitride1304-54-7Be3N2Cubic, cI80, SpaceGroup = Ia-3, No. 106 (α form)yellow or white powder55.06 g/mol2.71 g/cc2200 °C2240 °C (decomp)soluble
194BeAl2O4beryllium aluminate120041-06-7
195BeB2beryllium boride12228-40-9
196BeBr2beryllium bromide7787-46-4BeBr2Orthorhombiccolorless white crystals168.820 g/mol3.465 g/cc (20 °C)508°C (473°C sublimes)520°C[1]0.4111 J/g KHighly[1]-2.094 kJ/g9.5395 J/KBeryllium fluoride Beryllium chloride Beryllium iodideMagnesium bromide Calcium bromide
197BeCl2beryllium chloride7787-47-5BeCl2White or yellow crystals79.9182 g/mol1.899 g/cc, solid399 °C, 672 K, 750 °F482 °C, 755 K, 900 °F7.808 J/K15.1 g/100 mL (20°C)soluble in alcohol, ether and pyridine insoluble in benzene, chloroform, acetone and ammonia-6.136 kJ/g
198BeF2beryllium fluoride7787-49-7BeF2colorless lumps47.01 g/mol hygroscopic1.986 g/cc554 °C, 827 K, 1029 °F1169 °C, 1442 K, 2136 °F ([1])1.102 J/Kvery solublesparingly soluble in alcohol-21.84 kJ/gnon-flammable
199BeH2beryllium hydride7787-52-2BeH2amorphous white solid[1]11.03 g mol−10.65 g/cc250 °C with decomp.[1]decomposeslithium hydride, calcium hydride, boron hydrides
200BeI2beryllium iodide7787-53-3BeI2colorless needle-like crystals262.821 g/mol4.325 g/cm³480°C590°C[1]0.2705 J/KReacts violently with water[1]Slightly soluble in CS2 Soluble in ethanol[2]-0.7324 kJ/gBeryllium fluoride Beryllium chloride Beryllium bromideMagnesium iodide Calcium iodide
201BeOberyllium oxide1304-56-9Beryllia, Thermalox, Berlox, Super beryllia, Beryllia ceramic, BromelliteBeOwhite solidPhase behaviour Solid, liquid, gas25.0116 g/mol3.02 g/cc [1]2507 °C3900 °CUV, IR, NMR, MSsoluble (powder)Beryllium sulfide Beryllium selenide Beryllium tellurideMagnesium oxide Calcium oxideNon-flammable
202BeSberyllium sulfide13598-22-6
203BeSeberyllium selenide12232-25-6
204BeSO4beryllium sulfate13510-49-1BeSO4white solid105.075 g/mol (anhydrous) 177.136 g/mol (tetrahydrate)2.50 g/cc (anhydrous) 1.71 g/cc (tetrahydrate)1287 °C (anhydrous) 110 °C (tetrahydrate)2500 °C (anhydrous) 580 °C (tetrahydrate)1.4374 (tetrahydrate)30.5 g/100 mL (30 °C)insoluble in alcohol
205BeSO4-4H2Oberyllium sulfate trihydrate7787-56-6
206BeTeberyllium telluride12232-27-8BeTesphalerite, cF8, Space group = F-43m, No. 216136.612 g/mol5.1 g/cc
207BF3boron trifluoride7637-07-2BF3colorless gas (anhydrous) colorless liquid (dihydrate)67.82 g/mol (anhydrous) 103.837 g/mol (dihydrate)2.178 g/cc (anhydrous) 1.64 g/cc (dihydrate)−126.8 °C−100.3 °Cvery solublesoluble in benzene, toluene, hexane, chloroform and methylene chloridenon-flammable
208Bi(CHO2)3bismuth(III) formate25573-24-4
209Bi(OH)3bismuth(III) hydroxide10361-43-0
210Bi2(C2O4)3bismuth(III) oxalate6591-55-5
211Bi2(MoO4)3bismuth(III) molybdate51898-99-8
212Bi2(SnO4)3bismuth(III) stannate7787-68-0
213Bi2O3bismuth(III) oxide1304-76-3BismiteBi2O3pseudo-octahedralmonoclinic, mP20, Space group P21/c (No 14)yellow crystals or powderPhase behaviour Solid, liquid, gas465.96 g/mol Bi=89.70%, O=10.30%8.90 g/cc, solid817°C [1]1890°CUV, IR, NMR, MSinsolublesoluble in acidsBismuth trisulfideArsenic trioxide Antimony trioxidenon-flammable
214Bi2O4bismuth(IV) peroxide12048-50-9
215Bi2S3bismuth(III) sulfide1345-07-9Bismuth sulfide Dibismuth trisulfideBi2S3brown powder514.16 g/mol6.78 g/cc[1]775 ËÅ¡C[2]insolublesoluble in acids
216Bi2Se3bismuth(III) selenide12068-69-8
217Bi2Te3bismuth(III) telluride1304-82-1Bi2Te3Trigonal, hR15, SpaceGroup = R-3m, No. 166grey powder800.761 g/mol7.7 g/cc585 C[1]
218BI3boron triiodide13517-10-7BI3crystalline solid391.52 g/mol3.35 g/cc (50 °C)49.9 °C, 323 K, 122 °F210 °C, 483 K, 410 °Finsoluble-18 °C
219Bi4(TiO4)3bismuth(III) titanate12048-51-0
220Bi5O(OH)9(NO3)4bismuth(IV) subnitrate1304-85-4
221BiBr3bismuth(III) bromide7787-58-8
222BiC6H5O7bismuth(III) citrate813-93-4
223BiCl3bismuth(III) chloride7787-60-2Bismuth trichloride, Trichlorobismuth, Trichlorobismuthine, Bismuth(III) chlorideBiCl3hygroscopic white to yellow crystals315.34 g/mol4.75 g/cc227 °C, 500 K, 441 °F447 °C, 720 K, 837 °FDecomposes to bismuth oxychloridesoluble in methanol, diethyl ether, acetonebismuth fluoride, bismuth subsalicylate, bismuth trioxideiron(III) chloride, manganese(II) chloride, cobalt(II) chloride
224BiF3bismuth(III) fluoride7787-61-3Bismuth trifluorideBiF3Orthorhombic, oP16, SpaceGroup = Pnma, No. 62 (β phase)grey-white powder265g mol-15.32 g cm-3[1]649ËÅ¡C[2]Insoluble in water[1]
225BiF5bismuth(V) fluoride7787-62-4bismuth(V) fluorideBiF5octahedral Bilong white needles,[1] colourless crystalline solid[2]303.97 g mol−15.40 g cm−3[1]151.4 °C[2], 154.4 °C[1]230 °C[1][2]bismuth trichloride, bismuth tribromide, bismuth triiodide, pentamethylbismuthphosphorus pentafluoride, arsenic pentafluoride, antimony pentafluoride
226BiH3bismuth(III) hydride18288-22-7
227BiI3bismuth(III) iodide7787-64-6Bismuth iodide, bismuth triiodideBiI3Trigonal, hR24greenish-black crystals589.69 g/mol5.778 g/cc408.6 °C542 °C Norman, Nicholas C. (1998), Chemistry of Arsenic, Antimony and Bismuth, Springer, pp. 95, ISBN 075140389X, http://books.google.com/books?id=vVhpurkfeN4C&pg=PA187, retrieved 2008-06-03 0.0007761 g/100 mL (20 °C)50 g/100 mL ethanol 50 g/100 mL 2M hydrochloric acidBismuth(III) fluoride Bismuth(III) chloride Bismuth(III) bromideNitrogen triiodide Phosphorus triiodide Antimony triiodide
228BiNbO4bismuth(III) orthoniobate12272-28-5
229BiOBrbismuth(III) oxybromide7787-57-7
230BiOClbismuth(III) oxychloride7787-59-9
231BiOIbismuth(III) oxyiodide7787-63-5
232BiONO3bismuth(III) oxynitrate10361-46-3
233BiPO4bismuth(III) phosphate10049-01-1
234BiTaO4bismuth(III) orthotantalate12272-29-6
235BiVO4bismuth(III) vanadate14059-33-7
236Bk2O3berkelium(III) oxide12310-58-6
237BkBr3berkelium(III) bromide22787-71-9
238BkCl3berkelium(III) chloride13536-46-4
239BkF3berkelium(III) fluoride20716-88-5
240BkF4berkelium(IV) fluoride22422-27-1
241BkI3berkelium(III) iodide23171-53-1
242BkOberkelium(II) oxide70424-36-1
243BkO2berkelium(IV) oxide12010-84-3
244BNboron nitride10043-11-5BNhexagonal, sphalerite, wurtzitewhite powder or translucent crystals (both c-BN and h-BN)24.818 g/mol3.4870 g/cc (cBN)2973 °C (cBN) (sublimes)200 cm2/(V·s) (cBN)2.17 (cBN)insolubleinsoluble in acids476.98 kJ mol−114.77 J mol−1 K−1BP, BAs B4C, B2O3
245BPboron phosphide20205-91-8BPTetrahedralZinc Blendemaroon powder41.7855 g/mol2.90 g/cc1100 °C (decomposes)4 W/(cm*K) (300 K)2 eV (indirect)5400 cm2/(V*s) (300 K)3.05 (0.63 µm)[1]
246BPO4boron orthophosphate13308-51-5
247Br2Obromine dioxide21308-80-5BrO2unstable yellow crystals111.903 g/mol[1]decomposes around 0°C [2]Bromine monoxide Bromine trifluoride Bromine pentafluorideOxygen difluoride Chlorine dioxide Iodine dioxide
248BrClbromine monochloride13863-41-7bromine(I) chloride bromochloride bromine chlorideBrCl115.357 g/mol2.172 g/cm³-66 °C5 °C
249BrFbromine monofluoride13863-59-7
250BrF3bromine trifluoride7787-71-5BrF3straw-coloured liquid hygroscopicPhase behaviour Solid, liquid, gas136.90 g/mol2.803 g/cc [1]8.77 °C125.72 °CUV, IR, NMR, MS1.19 DdecomposesBromine monochlorideChlorine trifluoride Iodine trifluoride
251BrF5bromine pentafluoride7789-30-2BrF5Pale yellow liquidPhase behaviour Solid, liquid, gas174.894 g.mol−12.466 g/cc−61.30 °C40.25 °CUV, IR, NMR, MSreactsBromine monochlorideChlorine pentafluoride Iodine pentafluorideNon-flammable
252BrN3bromine azide13973-87-0
253BrO2bromine monoxide21255-83-4
254Ca(AlH4)2calcium tetrahydroaluminate16941-10-9
255Ca(C2H3O2)2calcium acetate62-54-4Acetate of lime Calcium ethanoateC4H6CaO4White solid158.17 g mol−11.6 g/cc160 °C (decomposition to acetone)37.4 g/100 mL (0 °C) 34.7 g/100 mL (20 °C) 29.7 g/100 mL (100 °C)680 - 730 °C
256Ca(C2HO2)2calcium fumarate19855-56-2
257Ca(C3H5O2)2calcium propionate4075-81-4Calcium propionate MycobanC6H10CaO4White crystalline solid186.22Freely soluble
258Ca(CHO2)2calcium formate544-17-2formic acid calcium salt, calcoformCa(HCOO)2white powder130.113 g/mol2.02 g/ccdecomposes at 300°C16.1 g/100 mL (0 °C) 16.6 g/100 mL (20°C) 18.4 g/100 mL (100 °C)insoluble in ethanolCalcium acetateSodium formate
259Ca(ClO3)2calcium chlorate10137-74-3Ca(ClO3)2white solid206.98 g/mol2.71 g/cc325 °C209 g/100mL (20 °C)magnesium chlorate strontium chlorate barium chlorate
260Ca(ClO4)2calcium perchlorate13477-36-6
261Ca(CN)2calcium cyanide592-01-8
262Ca(H2PO2)2calcium hypophosphite7789-79-9
263Ca(IO3)2calcium iodate7789-80-2LautariteCa(IO3)2white solid215.89 g/mol (anhydrous) 389.88 g/mol (monohydrate)4.519 g/cc (monohydrate)540 °C (monohydrate)decomposes0.09 g/100 mL (0 °C) 0.24 g/100 mL (20 °C)non-flammable
264Ca(MnO4)2calcium permanganate10118-76-0Ca(MnO4)2purple crystals277.949 g/mol2.49 g/cc140 °C (decomp)solubleSodium permanganate Ammonium permanganate
265Ca(NO2)2calcium nitrite13780-06-8
266Ca(NO3)2calcium nitrate10124-37-5Kalksalpeter, nitrocalcite, Norwegian saltpeter, lime nitrateCa(NO3)2cubic (anhydrous) monoclinic (tetrahydrate)colourless164.088 g/mol (anhydrous) 236.15 (tetrahydrate)2.504 g/cc (anhydrous) 1.896 g/cc (tetrahydrate)561 °C (anhydrous) 42.7 °C (tetrahydrate)decomposes (anhydrous) 132 °C (tetrahydrate)anhydrous: 121.2 g/100 mL (20 °C) 271.0 g/100 mL (40° C) tetrahydrate: 102 g/100 mL (0 °C) 129 g/100 mL (20 °C) 363 g/100 mL (100 °C)dissolves in alcohol and acetoneCalcium sulfate Calcium chlorideMagnesium nitrate Strontium nitrate Barium nitrateNon-flammable
267Ca(OH)2calcium hydroxide1305-62-0Slaked lime Milk of lime Calcium(II) hydroxide Pickling limeCa(OH)2soft white powder/colourless liquidPhase behaviour Solid, liquid, gas74.093 g/mol2.211 g/cc, solid512 °C (decomp.)UV, IR, NMR, MS0.189 g/100 mL (0 °C) 0.173 g/100 mL (20 °C)Magnesium hydroxide Strontium hydroxide Barium hydroxideNon-flammable2.37
268Ca2P2O7calcium pyrophosphate7790-76-3Diphosphoric acid, calcium salt (1:2)Ca2O7P2254.053 g/mol3.09 g/cc1230 °CinsolubleCalcium phosphateMagnesium pyrophosphate Sodium pyrophosphateNon-flammable
269Ca2SiO4calcium silicate1344-95-2Calcium orthosilicate, silicic acid calcium salt, grammite, silene, micro-cell, beliteCa2SiO4White or cream powder116.16 g/mol1540 °C, 1813 K, 2804 °FNot applicable
270Ca3(AsO4)2calcium arsenate7778-44-1Calcium orthoarsenate Cucumber dustCa3As2O8white powder398.072 g/mol3.620 g/cc, solid1455°C (decomposes)0.013 g/100 mL (25°C)
271Ca3(C6H15O7)2calcium citrate5785-44-4E333Ca3(C6H5O7)2White powder498.46 g/mol (anhydrous) 570.5 g/mol (tetrahydrate)1.63 g/cc, solid120 °C (loses water)Decomposes0.085 g/100 mL (18°C) 0.095 g/100 mL (25 °C)Sodium citrate
272Ca3(PO4)2calcium phosphate7758-87-4
273Ca3N2calcium nitride12013-82-0tricalcium dinitrideCa3N2Cubic, cI80red-brown crystalline solid148.25 g mol−12.670 g/cc 2.63 g/cc (17 °C)1195 °C, 1468 K, 2183 °Fdecomposes
274Ca3P2calcium phosphide1305-99-3
275CaAl2O4calcium aluminate12042-68-1
276CaB6calcium boride12007-99-7Calcium borideCaB6Cubicblack powder104.94 g/mol2.45 g/cc2235°C /2770 Kinsoluble
277CaBr2calcium bromide7789-41-5Calcium dibromideCaBr2rhomboidOdorless, very hygroscopic colorless crystals sharp saline taste199.89 g/mol (anhydrous) 235.98 g/mol (dihydrate)3.353 g/cc730 °C1935 °C (anhydrous) 810 °C (dihydrate)125 g/100 mL (0 °C) 143 g/100 ml (20°C) 312 g/100 mL (100 °C)9
278CaC2calcium carbide75-20-7CaC26Tetragonal [1]White powder to grey/black crystals64.099 g/mol2.22 g/cc2160 °C, 2433 K, 3920 °F2300 °C, 2573 K, 4172 °Fdecomposes
279CaC2O4calcium oxalate563-72-4CaC2O4white solid128.097 g/mol, anhydrous 146.112 g/mol, monohydrate2.2 g/cm³, anhydrous 2.2 g/cm³, monohydrate200°C, decomposes (monohydrate)0.00067 g/100 ml (20 °C)
280CaCl2calcium chloride10043-52-4Calcium(II) chloride, Calcium dichloride, E509CaCl2octahedral, 6-coordinateOrthorhombic (deformed rutile), oP6white solidPhase behaviour Solid, liquid, gas110.98 g/mol (anhydrous) 128.999 g/mol (monohydrate) 147.014 g/mol (dihydrate) 183.045 g/mol (tetrahydrate) 219.08 g/mol (hexahydrate)2.15 g/cc (anhydrous) 1.835 g/cc (dihydrate) 1.83 g/cc (tetrahydrate) 1.71 g/cc (hexahydrate)772 °C (anhydrous) 260 °C (monohydrate) 176 °C (dihydrate) 45.5 °C (tetrahydrate) 30 °C (hexahydrate) [1]1935 °C (anhydrous)UV, IR, NMR, MS74.5 g/100mL (20 °C) 59.5 g/100 mL (0 °C)calcium fluoride calcium bromide calcium iodidemagnesium chloride strontium chloride barium chloride8-9 (anhydrous) 6.5-8.0 (hexahydrate)
281CaCl2-6H2Ocalcium chloride hexahydrate7774-34-7
282CaCl2O2calcium hypochlorite7778-54-3Hypochlorous acid, calcium salt Bleaching powderCa(ClO)2white/gray powder142.985 g/mol2.35 g/cc (20 °C)100°C175°C, decomposes21 g/100 ml, reactsreacts in alcoholCalcium chlorideSodium hypochloriteNon-flammable
283CaCN2calcium cyanamide156-62-7Cyanamide calcium salt, Lime Nitrogen, UN 1403, NitrolimeCaCN2White solid (Often gray or black from impurities)80.102 g/mol2.29 g/cc1340 °C [1]1150-1200 °C (sublim.)ReactsNon-flammable
284CaCO3calcium carbonate471-34-1Limestone; calcite; aragonite; chalk; marbleCaCO3TrigonalFine white powder.100.087 g/mol2.71 g/cc (calcite) 2.83 g/cc (aragonite)825 °C (calcite) 1339 °C (aragonite)decomposes0.00015 mol/L (25°C)Calcium bicarbonateMagnesium carbonate Strontium carbonate Barium carbonateNon-flammable
285CaCr2O7calcium chromate14307-33-6Calcium chromate (VI) Calcium monochromate Calcium Chrome Yellow C. I. Pigment Yellow 33 Gelbin Yellow UltramarineCaCrO4monoclinicbright yellow powder156.072 g/mol3.12 g/cc2710 °C4.5 g/100 mL (0 °C) 2.25 g/100 mL (20 °C)
286CaF2calcium fluoride7789-75-5CaF2Ca, 8, cubic F, 4, tetrahedralcubic crystal system, cF12[2]White crystalline solid (single crystals are transparent)78.07 g mol−13.18 g/cc1418 °C, 1691 K, 2584 °F2533 °C, 2806 K, 4591 °F1.43280.0015 g/100 mL (18 °C) 0.0016 g/100 mL (20 °C)Calcium chloride Calcium bromide Calcium iodideMagnesium fluoride Strontium fluoride Barium fluorideNon-flammable
287CaH2calcium hydride7789-78-8Calcium(II) hydride Calcium dihydrideCaH2Orthorhombic, oP12gray powder (colourless when pure)42.094 g/mol1.70 g/cc, solid816 °Creacts violentlyreacts in alcoholSodium hydride, Potassium hydride
288CaHPO4calcium hydrogenorthophosphate7757-93-9
289CaI2calcium iodide10102-68-8CaI2octahedralRhombohedral, hP3, SpaceGroup = P-3m1, No. 164white solid293.887 g/mol (anhydrous) 365.95 g/mol (tetrahydrate)3.956 g/cm³[1]779 °C (tetrahydrate) with decomposition1100 °C64.6 g/100 mL (0 °C) 66 g/100 mL (20 °C) 81 g/100 mL (100 °C)soluble in acetone and alcoholscalcium fluoride calcium chloride calcium bromidemagnesium iodide strontium iodide barium iodide
290CaMoO4calcium molybdate7789-82-4
291CaOcalcium oxide1305-78-8QuicklimeCaOWhite to pale yellow powder56.077 g/mol3.35 g/cc2572 °C (2845 K)2850 °C (3123 K)reactsCalcium sulfide Calcium hydroxideBeryllium oxide Magnesium oxide Strontium oxide Barium oxideNon-flammable12.5
292CaO2calcium peroxide1305-79-9E930CaO26Tetragonalwhite to yellow powder72.077 g/mol2.91 g/cc~200 °CinsolubleCalcium oxideStrontium peroxide Barium peroxide Sodium peroxide12.5
293CaRe2O8calcium perrhenate13768-54-2
294CaScalcium sulfide20548-54-3Calcium monosulfide, Hepar calcies, Sulfurated lime OldhamiteCaSOctahedral (Ca2+); octahedral (S2–)Halite (cubic), cF8white crystals hygroscopic72.143 g/mol2.59 g/cc2525 °C2.137slightly solubleinsoluble in alcohol reacts with acidCalcium oxideMagnesium sulfide Strontium sulfide Barium sulfide
295CaSecalcium selenide1305-84-6
296CaSi2calcium silicide12013-56-8CaSi2whitish grey - black solid96.251 g/mol2.5 g/cc1020 °Cinsoluble
297CaSiO3calcium metasilicate1344-95-2
298CaSO4calcium sulfate7778-18-9Plaster of Paris Drierite GypsumCaSO4orthorhombicwhite solidPhase behaviour Solid, liquid, gas136.14 g/mol (anhydrous) 145.15 g/mol (hemihydrate) 172.172 g/mol (dihydrate)2.96 g/cc (anhydrous) 2.32 g/cc (dihydrate)1460 °C (anhydrous)UV, IR, NMR, MS0.0021 g/100 mL (20 °C, anhydrous)[citation needed] 0.24 g/100mL (20 °C, dihydrate)-1434.5 kJ/molMagnesium sulfate Strontium sulfate Barium sulfateNon-flammable
299CaTecalcium telluride12013-57-9
300CaTiO3calcium titanate12049-50-2CaTiO3white powder135.943 g/mol3.98 g/cc1975 °C3000 °Cinsoluble
301CaWO4calcium tungstate7790-75-2
302Cd(C2H3O2)2cadmium acetate543-90-8Cadmium diacetateCd(CH3COO)2 (anhydrous) Cd(CH3COO)2·2H2O (dihydrate)colorless crystals (anhydrous) white crystals (dihydrate)230.500 g/mol (anhydrous) 266.529 g/mol (dihydrate)2.341 g/cc (anhydrous) 2.01 g/cc (dihydrate)255 °C (anhydrous) decomposes at 130°C (dihydrate)[1]soluble in water, methanol, ethanol (anhydrous) very soluble in water, soluble in ethanol (dihydrate)Cadmium fluoride Cadmium chloride Cadmium bromide Cadmium iodideZinc acetate Mercury(II) acetate Silver acetate
303Cd(CN)2cadmium cyanide542-83-6Cd(CN)2white cubic crystals164.45 g/mol2.226 g/cc1.71 g/100 mL (15 °C) 2.2 g/100 mL (20 °C)slightly soluble in alcohol dissolves in alkali, metal cyanides and hydroxidesCadmium chloride, Cadmium iodideZinc cyanide, Calcium cyanide, Magnesium cyanide
304Cd(IO3)2cadmium iodate7790-81-0
305Cd(N3)2cadmium azide14215-29-3
306Cd(NO3)2cadmium nitrate10325-94-7Nitric acid, cadmium saltCd(NO3)2white crystals236.42 g/mol3.60 g/cc, solid350 °C, 623 K, 662 °F122 g/100 mL (0 °C) 136 g/100 mL (20 °C)soluble in acidsCadmium acetate, Cadmium chloride, Cadmium sulfateZinc nitrate, Calcium nitrate, Magnesium nitrate
307Cd(OH)2cadmium hydroxide21041-95-2Cd(OH)2hexagonalwhite crystals146.43 g/mol4.79 g/cc130 °C300 °C (decomp)0.026 g/100 mLsoluble in dilute acidsCadmium chloride, Cadmium iodideZinc hydroxide, Calcium hydroxide, Magnesium hydroxide
308Cd2Nb2O7cadmium niobate12187-14-3
309Cd3As2cadmium arsenide12006-15-4Cadmium diarsenideCd3As2solid, dark grey487.08 g/mol3.031decomposes in water
310Cd3N2cadmium nitride12380-95-9
311Cd3P2cadmium phosphide1204-28-7
312CdBr2cadmium bromide7789-42-6Cadmium dibromideCdBr2Rhombohedral, hr9, SpaceGroup = R-3m, No. 166white to pale yellow crystalline solid272.22 g/mol5.192 g/cc, solid568 °C844 °C56.3 g/100 mL (0 °C) 98.8 g/100 mL (20 °C) 160 g/100 mL (100 °C)soluble in alcohol, ether, acetone and liquid ammonia.Cadmium chloride, Cadmium iodideZinc bromide, Calcium bromide, Magnesium bromide
313CdC2O4cadmium oxalate814-88-0
314CdCl2cadmium chloride10108-64-2CdCl2Rhombohedral, hr9, SpaceGroup = R-3m, No. 166white solid, hygroscopic183.32 g/mol4.047 g/cc (solid)564 °C960 °C100 g/100 mL (0 °C) 135 g/100 mL (20 °C) 147 g/100 mL (100 °C)soluble in acetone, alcohol insoluble in etherCadmium fluoride Cadmium bromide Cadmium iodideZinc chloride Mercury(II) chloride Calcium chloride
315CdCO3cadmium carbonate513-78-0
316CdCrO4cadmium chromate14312-00-6
317CdF2cadmium fluoride7790-79-6Cadmium(II) fluoride, Cadmium difluorideCdF2Fluorite (cubic), cF12grey or white-grey crystals150.41 g/mol6.33 g/cc, solid1110 °C1748 °C4.35 g/100 mLsoluble in acid insoluble in ethanol alcohol and liquid ammoniaCadmium chloride, Cadmium bromide Cadmium iodideZinc fluoride, Calcium fluoride, Magnesium fluoride
318CdI2cadmium iodide7790-80-9Cadmium diiodideCdI2octahedralRhombohedral, hP3, SpaceGroup = P-3m1, No. 164white to pale yellow crystals366.22 g/mol5.640 g/cc, solid387 °C, 660 K, 729 °F742 °C, 1015 K, 1368 °F78.7 g/100 mL (0 °C) 84.7 g/100 mL (20 °C) 125 g/100 mL (100 °C)soluble in ethanol, acetone, ether and ammoniacadmium fluoride cadmium chloride cadmium bromidezinc iodide mercury(II) iodide
319CdMoO4cadmium molybdate13972-68-4
320CdOcadmium oxide1306-19-0Cadmium(II) oxide, Cadmium monoxideCdOface centered Cubic crystal systemcolorless powder (alpha form) red-brown crystal (beta form) [1]128.41 g mol−18.150 g/cc(crystalline), 6.95 g/cc (amorphous)[2] solid.900-1000 °C (decomposition of amorphous form[3])1559 °C (sublimation[3])0.7 W/m-K531 cm2/V sinsolubleCadmium sulfide Cadmium selenide Cadmium tellurideZinc oxide Mercury oxideNon-flammable
321CdScadmium sulfide1306-23-6Cadmium(II) sulfide, Greenockite HawleyiteCdSHexagonal, CubicYellow-orange solid.144.46 g/mol4.82 g/cc, solid.1750 °C at 100 bar (10 MPa)980 °C subl.2.510.013 g/100 mL (20 °C) [1]Cadmium oxide Cadmium selenideZinc sulfide Mercury sulfideNon-flammable
322CdSbcadmium antimonide12014-29-8
323CdSecadmium selenide1306-24-7Cadmium(II) selenide, CadmoseliteCdSeWurtzite structure (hexagonal)Greenish-brown or dark red solid powder191.37 g/mol5.816 g/cc, solid1268 °C (1541 K)1.74 eV2.5InsolubleCadmium oxide, Cadmium sulfide, Cadmium tellurideZinc selenide, Mercury(II) selenide
324CdSiO3cadmium silicate13477-19-5
325CdSO4cadmium sulfate10124-36-4Sulfuric acid, cadmium salt (1:1), NiedermayriteCdSO4 CdSO4·H2O (monohydrate) 3CdSO4·8H2O (octahydrate)orthorhombic (anhydrous) monoclinic (octahydrate)White hygroscopic solid208.47 g/mol (anhydrous) 226.490 g/mol (monohydrate) 769.546 g/mol (octahydrate)4.691 g/cc (anhydrous) 3.79 g/cc (monohydrate) 3.08 g/cc (octahydrate) [1]1000 °C (anhydrous) 105 °C (monohydrate) 40 °C (octahydrate)(decomposes to basic sulfate and then oxide)anhydrous: 75 g/100 mL (0 °C) 76.4 g/100 mL (25 °C) 58.4 g/100 mL (99 °C) octahydrate: very solubleinsoluble in ethanolCadmium acetate, Cadmium chloride, Cadmium nitrateZinc sulfate, Calcium sulfate, Magnesium sulfate
326CdTecadmium telluride1306-25-8Irtran-6CdTezincblende (cubic) (space group F-43m240.01 g mol−15.85 g/cc1092 °C1130 °C1.56 eV (direct)2.67 (@10 µm)Cadmium oxide Cadmium sulfide Cadmium selenideZinc telluride Mercury telluride
327CdTiO4cadmium titanate12014-14-1
328CdWO4cadmium tungstate7790-85-4CdO4Wcolorless crystals with a yellow tint360.25 g mol−17.9 g/cc, solid1325 °C0.04642 g/100 mL (20 °C)
329Ce(CHO2)3cerium(III) formate3252-51-5
330Ce2(C2O4)3cerium(III) oxalate15750-47-7
331Ce2O3cerium(III) oxide1306-38-3Ce2O3Hexagonal, hP5yellow/green pulver,328.24 g/mol6.2 g/cc2177 °Cinsoluble
332Ce2S3cerium(III) sulfide12014-93-6
333CeBr3cerium(III) bromide7790-86-5Cerous bromideCeBr3Tricapped trigonal prismatic (nine-coordinate)hexagonal (UCl3 type), hP8grey to white solid, hygroscopic379.83 g/mol (anhydrous)5.1 g/cc, solid722 °C1457 °CNot Published YetCerium(III) fluoride Cerium(III) chloride Cerium(III) iodideLanthanum(III) bromide Praseodymium(III) bromidenot flammable
334CeCl3cerium(III) chloride7790-86-5Cerous chlorideCeCl3Tricapped trigonal prismatic (nine-coordinate)hexagonal (UCl3 type), hP8fine white powder246.48 g/mol (anhydrous) 372.58 g/mol (heptahydrate)3.97 g/cc817 °C (anhydrous) 90 °C (heptahydrate, decomp)1727 °C100 g/100 mlsoluble in alcoholCerium(III) fluoride Cerium(III) bromide Cerium(III) iodideLanthanum(III) chloride Praseodymium(III) chlorideNon-flammable
335CeF2cerium(II) fluoride22655-57-8
336CeF3cerium(III) fluoride7758-88-5
337CeF4cerium(IV) fluoride10060-10-3
338CeH2cerium(II) hydride13569-50-1
339CeI2cerium(II) iodide19139-47-0
340CeI3cerium(III) iodide7790-87-6
341CeNcerium(III) nitride25764-08-3
342CeO2cerium(IV) oxide1306-38-3Ceric oxide, Ceria, Cerium dioxideCeO2cubic [1]white or pale yellow solid, slightly hygroscopic172.115 g/mol7.65 g/cc, solid 7.215 g/cc, fluorite phase2400 °C3500 °Cinsoluble
343CeScerium(II) sulfide12014-82-3
344CeVO2cerium(III) vanadate13597-19-8
345Cf2O3californium(III) oxide12050-91-8
346CfBr2californium(II) bromide36700-18-2
347CfBr3californium(III) bromide20758-68-3
348CfCl2californium(II) chloride99643-99-9
349CfCl3californium(III) chloride13536-90-8
350CfF3californium(III) fluoride42775-52-0
351CfF4californium(IV) fluoride42845-08-9
352CfI2californium(II) iodide49774-08-5
353CfI3californium(III) iodide20758-81-0
354CfO2californium(IV) oxide12015-10-0
355Cl2Ochlorine monoxide7791-21-1
356Cl2O3chlorine trioxide17496-59-2Chlorine(VI) oxide; Chlorine trioxide; Chloryl perchlorateCl2O6red liquid166.901 g/mol1.65 g/cc3.5 °C200 °Creacts with water
357Cl2O6chlorine hexoxide12442-63-6
358Cl2O7chlorine heptoxide10294-48-1
359ClFchlorine monofluoride7790-89-8Chlorine fluorideClF54.45 g mol−11.62 g mL (liquid, −100 °C)−155.6 °C−100.1 °C33.01 J K−1 mol−10.881 D (2.94 × 10−30 C m)−56.5 kJ mol−1217.91 J K−1 mol−1
360ClF3chlorine trifluoride7790-91-2ClF3yellowish gas or liquid92.448 g/mol1.77 g/cc (13 °C, liquid) .004 g/cc (gas)-76.34 °C11.75 °Chydrolysis-158.87 kJ/mol [1]281.59 J K−1 mol−1 [1]9.182 x 10-5 Pa s
361ClF5chlorine pentafluoride13637-63-3ClF5colorless gas130.445 g mol−14.5 g/cc−103 °C−13.1 °Chydrolyzes−238.49 kJ mol−1310.73 J K−1 mol−1
362ClO2chlorine dioxide10049-04-4ClO2yellowish gas or liquid67.45 g/mol3.04 g/cc-59.5 °C11 °C0.8 g/100 mL (20 °C)soluble in alkalies, sulfuric acid+104.60 kJ/mol257.22 J K−1 mol−12.5-3.5
363ClOClO3chlorine perchlorate27218-16-2Dichlorine tetroxideCl2O4pale green liquid134.904 g/mol1.81 g/cc-117 °Cdecomposes at 25 °C
364Cm2O3curium(III) oxide12371-27-6Curium sesquioxideCm2O3Hexagonal, hP5542.139 g/molnone
365CmBr3curium(III) bromide14890-42-7
366CmCl3curium(III) chloride13537-20-7
367CmF3curium(III) fluoride13708-79-7
368CmF4curium(IV) fluoride24311-95-3
369CmI3curium(III) iodide14696-85-6
370CmOcurium(II) oxide24762-86-5
371CmO2curium(IV) oxide12016-67-0
372Co(C11H10O2)2cobalt(II) naphthenate61789-51-3NaphtoliteN/Abrown amorphous or bluish-red solid0.96 g/cm³, solid140 °C>150 °Cnone49 °C
373Co(C2H3O2)2cobalt(II) acetate71-48-7C4H6CoO4Red solid177.02 g mol−11.71 g/cc (tetrahydrate)Soluble
374Co(C2H3O2)2cobalt(II) acetate tetrahydrate6147-53-1C4H6CoO4Red solid177.02 g mol−11.71 g/cc (tetrahydrate)Soluble
375Co(ClO4)2cobalt(II) perchlorate13455-31-7
376Co(CN)2cobalt(II) cyanide542-84-7cobaltous cyanideCo(CN)2deep-blue powder hygroscopic (anhydrous) reddish-brown powder (dihydrate)110.968 g/mol (anhydrous) 147.00 g/mol (dihydrate) 165.02 g/mol (trihydrate)1.872 g/cc (anhydrous)280 °C (anhydrous)insolubledihydrate soluble in NaCN, KCN, NH4OH, HClCadmium chloride, Cadmium iodideZinc cyanide, Calcium cyanide, Magnesium cyanide
377Co(IO3)2cobalt(II) iodate13455-28-2
378Co(NO3)2cobalt(II) nitrate10141-05-6Cobaltous nitrate Nitric acid, cobalt(2+) saltCo(NO3)2monoclinic (hexahydrate)pale red powder (anhydrous) red crystalline (hexahydrate)182.943 g/mol (anhydrous) 291.03 g/mol (hexahydrate)2.49 g/cc (anhydrous) 1.87 g/cc (hexahydrate)100 °C, decomp (anhydrous) 55 °C (hexahydrate)100–105 °C, decomp (hexahydrate)134 g/100 ml, 0 °C (hexahydrate) soluble (anhydrous)soluble in alcohol, acetone (hexahydrate)Cobalt(II) sulfate Cobalt(II) chlorideIron(II) nitrate Nickel(II) nitrate
379Co(NO3)2-6H2Ocobalt(II) nitrate hexahydrate10026-22-9
380Co(NO3)3cobalt(III) nitrate15520-84-0
381Co(OH)2cobalt(II) hydroxide21041-93-0Cobaltous hydroxide, cobalt hydroxide, cobaltous hydrateCo(OH)2rhombohedralrose-red powder or bluish-green powder92.948 g/mol3.597 g/cc168 °C (decomp)[1]3.2 g/100mLsoluble in acids, ammonia; insoluble in dilute alkalis-539.7 kJ•mol-179.0 J•mol-1•K-1[2]Cobalt(II) chloride Cobalt(II) bromide Cobalt(II) iodideIron(II) hydroxide Nickel(II) hydroxide Copper(II) hydroxide
382Co(OH)3cobalt(III) hydroxide1307-86-4
383Co2O3cobalt(III) oxide1308-04-9cobaltic oxide, cobalt sesquioxideCo2O3Trigonal, hR30black powder165.86 g/mol5.18 g/cc [2]1900 °C
384Co2O3-H2Ocobalt(III) oxide monohydrate12016-80-7
385Co2S3cobalt(III) sulfide1332-71-4
386Co2SiO4cobalt(II) orthosilicate12017-08-2
387Co2SnO4cobalt(II) stannate12139-93-4
388Co2TiO4cobalt(III) titanate12017-38-8
389Co3(Fe(CN)6)2cobalt(II) ferricyanide14049-81-1
390CoAl2O4cobalt(II) aluminate13820-62-7
391CoBr2cobalt(II) bromide7789-43-7CoBr2octahedralRhombohedral, hP3, SpaceGroup = P-3m1, No. 164Green powder218.74 g/mol4.909 g/cc678 °C112 g/100 mLcobalt(II) fluoride cobalt(II) chloride cobalt(II) iodideiron(II) bromide nickel(II) bromideNon-flammable
392CoC15H21O6cobalt(III) acetylacetonate21679-46-9
393CoC2O4cobalt(II) oxalate814-89-1
394CoCl2cobalt(II) chloride7646-79-9Cobaltous chlorideCoCl2OctahedralCdCl2 structuresee text129.839 g/mol (anhydrous) 165.87 g/mol (dihydrate) 237.93 g/mol (hexahydrate)3.356 g/cc (anhydrous) 2.48 g/cc (dihydrate) 1.92 g/cc (hexahydrate)735 °C1049 °C43.6 g/100 mL (0 °C) 45 g/100 mL (7 °C) 52.9 g/100 mL (20 °C)soluble in acetone, ethanol, etherCobalt(II) fluoride Cobalt(II) bromide Cobalt(II) iodideRhodium(III) chloride Iridium(III) chlorideNon-flammable
395CoCl2-6H2Ocobalt(II) chloride hexahydrate7791-13-1
396CoCl3cobalt(III) chloride10241-04-0
397CoCr2O4cobalt(II) chromite13455-25-9
398CoCrO4cobalt(II) chromate24613-38-5
399CoF2cobalt(II) fluoride10026-17-2cobalt difluorideCoF2Red crystalline solid96.93 g/mol4.46 g/cc (anhydrous) 2.22 g/cc (trihydrate)1217 °C, 1490 K, 2223 °F1400 °C, 1673 K, 2552 °FInsolublecobalt(II) oxide, cobalt(II) chlorideiron(II) fluoride, nickel(II) fluoride
400CoF3cobalt(III) fluoride10026-18-3Cobalt trifluoride Cobaltic fluoride Cobalt fluoride Cobaltic trifluorideCoF3115.9284 g/mol3.88 g/cc927 °C [1]reactscobalt(III) oxide, cobalt(III) chlorideiron(III) fluoride, rhodium(III) fluoride
401CoF4cobalt(IV) fluoride13596-45-7
402CoI2cobalt(II) iodide15238-00-3cobaltous iodide, cobalt diiodideCoI2α-form: black hexagonal crystal β-form: yellow powder312.7421 g/mol (anhydrous) 420.83 g/mol (hexahydrate)α-form: 5.584 g/cm³ β-form: 5.45 g/cm³ hexahydrate: 2.09 g/ccα-form: 515-520°C under vacuum β-form: converts to α-form at 400°C570 °C67.0 g/100 mL[1]Cobalt(II) fluoride Cobalt(II) chloride Cobalt(II) bromideNickel(II) iodide Copper(I) iodide
403CoMoO4cobalt(II) molybdate13762-14-6
404CoOcobalt(II) oxide1307-96-6Cobaltous oxide Cobalt monoxideCoOcubic, cF8black powder74.9326 g/mol6.44 g/cc [1]1933 °C, 2206 K, 3511 °F3.3 g/100mLCobalt(II) sulfide Cobalt(II) hydroxideIron(II) oxide Nickel(II) oxideNon-flammable
405CoScobalt(II) sulfide1317-42-6CoSblack solid90.998 g/mol5.45 g/cc1195 °Cinsoluble
406CoS2cobalt(IV) sulfide12013-10-4
407CoSecobalt(II) selenide1307-99-9
408CoSO4cobalt(II) sulfate10124-43-3CoSO4reddish crystalline (anhydrous, monohydrate) pink salt (heptahydrate)154.996 g/mol (anhydrous) 173.01 g/mol (monohydrate) 281.103 g/mol (heptahydrate)3.71 g/cc (anhydrous) 3.08 g/cc (monohydrate) 2.03 g/cc (heptahydrate) [1]735 °C (anhydrous) 74 °C (heptahydrate)36.2 g/100 ml (20°C)Non-flammable
409CoTecobalt(II) telluride12017-13-9
410CoTiO3cobalt(II) titanate12017-01-5
411CoWO4cobalt(II) tungstate12640-47-0
412Cr(C6H4NO2)3chromium(III) picolinate14639-25-9Cr(C6H4NO2)3418.33 g/mol
413Cr(CO)6chromium(VI) carbonyl13007-92-6Chromium carbonylC6CrO6octahedralorthrhombiccolorless crystals220.057 g/mol1.77 g/cc, solid150 °C210 °C (decomp)0 Dinsolublesoluble in ether, chloroform, THP, methylene chlorideMolybdenum hexacarbonyl Tungsten hexacarbonyl210 °C
414Cr(NO3)3chromium(III) nitrate13548-38-4Nitric acid, chromium(3+) saltCr(NO3)3blue-violet crystals (anhydrous) purple crystals (nonahydrate)238.011 g/mol (anhydrous) 400.21 g/mol (nonahydrate)1.85 g/cc (nonahydrate)60.06 °C (nonahydrate)> 100 °C (decomp.)81 g/100 mL (20 °C)Non flammable
415Cr2(SO4)3chromium(III) sulfate10101-53-8Basic chromium sulfate, chromic sulfateH24Cr2S3O24reddish-brown crystals392.16 g/mol 716.45 g/mol (dodecahydrate)3.10 g/cc (anhydrous) 1.86 g/cc (pentadecahydrate) 1.709 g/cc (octadecahydrate)insoluble (anhydrous) soluble (hydrates)Non-flammable
416Cr2O3chromium(III) oxide1308-38-9Chromium sesquioxide Chromia Chrome green EskolaiteCr2O3151.99 g/mol5.22 g/cc2435 °C, 2708 K, 4415 °F4000 °C, 4273 K, 7232 °F2.5insoluble
417Cr2S3chromium(III) sulfide12018-22-3Cr2S3Brown to black odorless powder200.19 g/mol3.77 g/cc1350 °CinsolubleChromium(III) oxide
418Cr2Te3chromium(III) telluride12053-39-3
419Cr3C2chromium(II) carbide12012-35-0Cr3C2Orthorhombic, oP20gray orthorhombic crystals180.009 g/mol6.68 g/cc1895°C
420Cr3O4chromium(II,III) oxide12018-34-7
421CrBr2chromium(II) bromide10049-25-9
422CrBr3chromium (III) bromide10031-25-1
423CrBr4chromium(IV) bromide23098-84-2
424CrCl2chromium(II) chloride10049-05-5Chromous chlorideCrCl2octahedral, 6-coordinateOrthorhombic (deformed rutile), oP6122.902 g/mol2.9 g/cc824°C1120°CsolubleChromium(II) fluoride Chromium(II) bromide Chromium(II) iodideChromium(III) chloride Chromium(IV) chloride Molybdenum(II) chloride Tungsten(II) chloride
425CrCl3chromium(III) chloride10025-73-7Chromic chlorideCrCl3OctahedralYCl3 structuresee text158.36 g/mol (anhydrous) 266.48 g/mol (hexahydrate)2.87 g/cc (anhydrous) 1.760 g/cc (hexahydrate)1152 °C (anhydrous) 83 °C (hexahydrate)1300 °C decomp.slightly soluble (anhydrous) 58.5 g/100 mL (hexahydrate)soluble in ethanol insoluble in ether, acetoneChromium(III) fluoride Chromium(III) bromide Chromium(III) iodideMolybdenum(III) chloride Tungsten(III) chlorideNon-flammable2.4 (0.2M solution)
426CrCl4chromium(IV) chloride15597-88-3CrCl4gas, stable at high temperature193.807 g/mol7.922 g/Ldecomposes above 600°C
427CrF2chromium(II) fluoride10049-10-2
428CrF3chromium(III) fluoride7788-97-8CrF3Rhombohedral, hR24green crystalline solid108.9913 g/mol (anhydrous) 163.037 g/mol (trihydrate) 181.05 g/mol (tetrahydrate)3.8 g/cc (anhydrous) 2.2 g/cc (trihydrate)1100 °C (sublimes)negligible (anhydrous) sparingly soluble (trihydrate)insoluble and alcohols soluble in HF, HCl
429CrF4chromium(IV) fluoride10049-11-3
430CrF5chromium(V) fluoride13843-28-2
431CrF6chromium(VI) fluoride13843-28-2
432CrI2chromium(II) iodide13478-28-9
433CrI3chromium(III) iodide13569-75-0
434CrI4chromium(IV) iodide23518-77-6
435CrNchromium(III) nitride12053-27-9Chromium(III) nitrideCrNBlack powder66.003 g/mol5.9 g/cc [1]1770 ËÅ¡C (decomp.)[2]Insoluble[3]−117.15 kJ/mol [4]37.75 J K−1 mol−1 [4]Non-flammable
436CrO2chromium(IV) oxide12018-01-8Crolyn magtrieveCrO2Rutile (tetragonal), tP6black tetrahedral ferromagnetic crystals83.9949 g/mol4.89 g/cc375°C (decomposes)InsolubleNon-flammable
437CrO3chromium(VI) oxide1333-82-0Chromic anhydride, chromium(VI) oxide, chromic acid, anhydride, chromic acid (misnomer)CrO3dark red granular solid99.9943 g/mol2.70 g/cc (20 °C)197 °C251 °C, decomposes61.7 g/100 mL (0 °C) 63 g/100 mL (25 °C) 67 g/100 mL (100 °C)soluble in sulfuric acid, nitric acid
438CrPO4chromium(III) phosphate7789-04-0
439CrSechromium(II) selenide12053-13-3
440Cs2C2O4caesium oxalate1068-63-9
441Cs2CdI4caesium tetraiodocadamate15683-21-3
442Cs2CO3caesium carbonate534-17-8Cesium carbonateCs2CO3white powder325.82 g/mol4.072 g/cc610 °C (decomp.)260.5 g/100 mL (15 °C)Caesium bicarbonateLithium carbonate Sodium carbonate Potassium carbonate Rubidium carbonatenon-flammable
443Cs2CrO4caesium chromate56320-90-2CrCs2O4Yellow crystalline solid381.8 g mol−14.237 g/cc71.4 g/100 ml (13 ºC)Caesium sulfateSodium chromate Potassium chromate Ammonium chromatenon-flammable
444Cs2MoO4caesium molybdate13597-64-3
445Cs2Ocaesium oxide20281-00-9Cesium oxide (US)Cs2Oanti-CdCl2 (hexagonal)yellow-orange solid281.81 g/mol4.65 g/cc, solid490 °C (under N2)76.0 J K-1 mol-1reacts-345.8 kJ/mol146.9 J K-1 mol-1Caesium hydroxideLithium oxide Sodium oxide Potassium oxide Rubidium oxidenon-flammable
446Cs2O2caesium peroxide12053-70-2
447Cs2Scaesium sulfide12214-16-3
448Cs2Secaesium selenide31052-46-7
449Cs2SO4caesium sulfate10294-54-9Cs2SO4361.87 g/mol4.243 g/cc, solid1010 ºC167 g/100 ml (0 ºC)insoluble in ethanol, acetoneCaesium hydrogensulfateLithium sulfate Sodium sulfate Potassium sulfate Rubidium sulfatenon-flammable
450Cs2Tecaesium telluride12191-06-9
451Cs2WO4caesium tungstate13587-19-4
452Cs2ZnI4caesium tetraiodozincate15158-68-6
453CsBO2caesium metaborate92141-86-1
454CsBrcaesium bromide7787-69-1Cesium bromide, Caesium(I) bromideCsBr8–8CsClWhite solid212.81 g/mol4.44 g/cc, solid636 °C1300 °C106.2 g/100 g (15 °C) 124.3 g/100 g (25 °C)Caesium fluoride, Caesium chloride, Caesium iodideSodium bromide, Potassium bromide Rubidium bromideNon-flammable
455CsBrO3caesium bromate13454-75-6
456CsC2H3O2caesium acetate3399-17-5Cesium acetateC2H3CsO2colourless, hygroscopic191.95 g mol−12.423 g/cc, solid194 °C, 467 K, 381 °F945 °C, 1218 K, 1733 °F945.1 g/100 g (-2.5 °C) 1345.5 g/100 ml (88.5 ºC)Caesium formateLithium acetate Sodium acetate Potassium acetate Rubidium acetatenon-flammable
457CsClcaesium chloride7647-17-8Cesium chlorideCsClsimple cubicCaesium chloride (see text)white solid hygroscopic168.36 g/mol3.99 g/cc645 °C1297 °C (vaporizes)162 g/100 mL (1 °C)soluble in ethanol [1]Caesium fluoride Caesium bromide Caesium iodideLithium chloride Sodium chloride Potassium chloride Rubidium chloride
458CsClO3caesium chlorate13763-67-2
459CsClO4caesium perchlorate13454-84-7Cesium perchlorateCsClO4orthorhombic (<219 °C) cubic (>219 ºC, a = 798 pm)Colorless crystalls232.36 g/mol3.327 g/cc250 °C decomp.1.974 g/100 ml (25 ºC)Caesium chloride Caesium chlorateLithium perchlorate Sodium perchlorate Potassium perchlorate Rubidium perchloratenon-flammable
460CsCNcaesium cyanide21159-32-0
461CsFcaesium fluoride13400-13-0Cesium fluorideCsFOctahedralcubicwhite crystalline solid151.90 g/mol4.115 g/cc682 °C (955 K)1251 °C (1524 K)7.9 D367 g/100 ml (18 °C)Caesium chloride Caesium bromide Caesium iodideLithium fluoride Sodium fluoride Potassium fluoride Rubidium fluorideNon-flammable
462CsHcaesium hydride58724-12-2CsHOctahedralFace centered cubicWhite or colorless crystals or powder133.91339 g/molCsF, CsCl, CsBr, CsILiH, NaH, KH, RbH, and all other hydrides
463CsIcaesium iodide7789-17-5CsICubic (Cs+) Cubic (I−)CsClwhite crystalline solid259.81 g/mol4.51 g/cc, solid621 °C1277±5 °C1.73944 g/100 ml (0 °C)Caesium fluoride Caesium chloride Caesium bromideLithium iodide Sodium iodide Potassium iodide Rubidium iodidenon-flammable
464CsIO3caesium iodate13454-81-4
465CsIO4caesium periodate13478-04-1
466CsMnO4caesium permanganate13456-28-5
467CsN3caesium azide22750-57-8
468CsNH2caesium amide22205-57-8
469CsNO2caesium nitrite13454-83-6
470CsNO3caesium nitrate7789-18-6CsNO3white solid194.91 g/mol3.685 g/cc414 ºCdecomp., see text9.16 g/100 ml (0 ºC) 196.8 g/100 ml (100 ºC)Caesium nitriteLithium nitrate Sodium nitrate Potassium nitrate Rubidium nitratenon-flammable
471CsO2caesium superoxide12018-61-0
472CsOHcaesium hydroxide21351-79-1CsOHwhitish-yellow deliquescent crystals149.912 g/mol3.675 g/cc, solid342.3°C69.9 J/molK[2]300 g/100 ml at 30°Csoluble in ethanol[1]−416.2 kJ·mol-1104.2 J·K−1·mol−1Caesium oxide Caesium fluorideLithium hydroxide Sodium hydroxide Potassium hydroxide Rubidium hydroxideNon flammable1.76
473CsVO3caesium vanadate14644-55-4
474Cu(BF4)2copper(II) tetrafluoroborate14735-84-3
475Cu(BO2)2copper(II) borate393290-85-2
476Cu(C16H35O2)2copper(II) stearate660-60-6
477Cu(C18H33O2)2copper(II) oleate1120-44-1
478Cu(C2H3O2)2copper(II) acetate142-71-2Cupric acetateCu(CH3COO)2MonoclinicDark green crystalline solid182 g/mol1.88 g/mL115 °C (388 K)240 °C (513 K)Non-flammable
479Cu(CHO2)2copper(II) formate544-19-4
480Cu(ClO4)2copper(II) perchlorate13770-18-8
481Cu(CN)2copper(II) cyanide14763-77-0
482Cu(N3)2copper(II) azide14215-30-6Cu(N3)2brown orthorhombic crystals147.586 g/mol2.6 g/cm 3(explodes)Lead(II) azide Silver azide Sodium azide
483Cu(NO3)2copper(II) nitrate3251-23-8Cupric nitrateCu(NO3)2orthorhombic (anhydrous) rhombohedral (hydrates)blue crystals hygroscopic187.56 g/mol (anhydrous) 241.60 g/mol (trihydrate) 295.65 g/mol (hexahydrate)3.05 g/cc (anhydrous) 2.32 g/cc (trihydrate) 2.07 g/cc (hexahydrate)256 °C (anhydrous, decomp) 114 °C (trihydrate) 26 °C (hexahydrate, decomposes)170 °C (trihydrate, decomposes)137.8 g/100 mL (0 °C) (trihydrate)hydrates very soluble in ethanol, waterCopper(II) sulfate Copper(II) chlorideNickel(II) nitrate Zinc nitrate
484Cu(OH)2copper(II) hydroxide20427-59-2Cupric hydroxideCu(OH)2Blue or blue-green solid97.561 g/mol3.368 g/cc, solid80 °C (decomp into CuO)negligibleinsoluble in ethanol; soluble in NH4OH, KCNCopper(II) oxide Copper(II) carbonateNickel(II) hydroxide Zinc hydroxideNon-flammable
485Cu2C2copper(I) acetylide1117-94-8C2Cu2151.11 g/mol
486Cu2Fe(CN)6copper(II) ferrocyanide13601-13-3
487Cu2Ocopper(I) oxide1317-39-1Cuprous oxide Dicopper oxide Cuprite Red copper oxideCu2Ocubicbrownish-red solid143.09 g/mol6.0 g/cc1235 °C, 1508 K, 2255 °F1800 °C, 2073 K, 3272 °FInsolubleCopper(I) sulfide Copper(II) sulfide Copper(I) selenideCopper(II) oxide Silver(I) oxide Nickel(II) oxide Zinc oxide
488Cu2P2O7copper(II) pyrophosphate10102-90-6
489Cu2Scopper(I) sulfide22205-45-4Cuprous sulfide Chalcocite Copper glanceCu2S159.16 g/mol5.6 g/cc [1]1130 °C[2]Insolubleslightly soluble in HCl; soluble in NH4OH; dissolves in KCN; decomposes in HNO3, H2SO4Copper(I) oxide Copper(I) selenideNickel(II) sulfide Copper(II) sulfide Zinc sulfideNon-flammable
490Cu2Secopper(I) selenide20405-64-5
491Cu2Tecopper(I) telluride12019-52-2
492Cu3(AsO4)2copper(II) arsenate10103-61-4Copper arsenateCu3(AsO4)2blue or bluish green powder468.48 g/mol5.2 g/cc1100 °Cinsolublesoluble in ammonia, dilute acids
493CuBrcopper(I) bromide7787-70-4Cuprous bromideCuBrgreen powder (see text)143.45 g/mol4.71 g/cc, solid492 °C, 765 K, 918 °F1345 °C, 1618 K, 2453 °F2.09slightly solubleCopper(I) chloride Copper(I) iodideSilver(I) bromide Copper(II) bromide Mercury(I) bromideNon-flammable
494CuBr2copper(II) bromide7789-45-9Cupric bromideCuBr2grayish black crystals223.37 g/mol4.71 g/cc, solid498 °C (771 K)600 °C (1173 K)55.7 g/100mL (20 °C)copper(II) fluoride copper(II) chloridenickel(II) bromide copper(I) bromide zinc bromide
495CuC2copper(II) acetylide1117-94-8
496CuC2H3O2copper(I) acetate598-54-9
497CuC2O4copper(II) oxalate814-91-5
498CuClcopper(I) chloride7758-89-6Cuprous chlorideCuClZinc blende structurewhite powder, slightly green from oxidized impurities98.999 g/mol4.145 g/cc426 °C (703 K)1490 °C (1760 K) (decomp.)1.930 [1]0.0062 g/100 mL (20 °C)insoluble in ethanol acetone; soluble in concentrated HCl, NH4OHCopper(I) bromide Copper(I) iodideCopper(II) chloride Silver(I) chlorideNon-flammable
499CuCl2copper(II) chloride7447-39-4Cupric chlorideCuCl2Octahedraldistorted CdI2 structureyellow-brown solid (anhydrous) blue-green solid (dihydrate)134.45 g/mol (anhydrous) 170.48 g/mol (dihydrate)3.386 g/cc (anhydrous) 2.51 g/cc (dihydrate)498 °C (anhydrous) 100 °C (dehydration of dihydrate)993 °C (anhydrous, decomp)70.6 g/100 mL (0 °C) 75.7 g/100 mL (25 °C)Copper(II) fluoride Copper(II) bromideCopper(I) chloride Silver chloride Gold(III) chlorideNon-flammable
500CuCl2-2H2Ocopper(II) chloride dihydrate10125-13-0
501CuCNcopper(I) cyanide544-92-3Cuprous cyanideCuCNwhite to greenish powder89.563 g/mol2.92 g/cc [1]474 °C, 747 K, 885 °Fnegligibleinsoluble in ethanol, cold dilute acids; soluble in NH4OH, KCNNon-flammable
502CuCrO4copper(II) chromate13548-42-0
503CuFcopper(I) fluoride13478-41-6cuprous fluorideCuFsphaleritecrystalline solid82.54 g/mol7.1 g/cc
504CuF2copper(II) fluoride7789-19-7Cupric fluoride; Copper fluorideCuF2White crystalline powder When hydrated: Blue101.543 g/mol (anhydrous) 137.573 g/mol (dihydrate)4.23 g/cc (anhydrous) 2.934 g/cc (dihydrate) [1]836 °C (anhydrous) 130 °C (dihydrate, decomposes)1676 °C (anhydrous)Copper(II) bromide Copper(II) chloridesilver(II) fluoride cobalt(II) fluoride
505CuHcopper(I) hydride13517-00-5
506CuHAsO3copper(II) arsenite10290-12-7
507CuIcopper(I) iodide7681-65-4Cuprous iodideCuITetrahedral anions and cationszincblendeWhite powder when impure: tan or brownish190.45 g/mol5.67 g/cc [1]606 °C1290 °C (decomposes)2.346insolublesoluble in 3.5 M KI soln.Copper(I) fluoride Copper(I) chloride Copper(I) bromidesilver(I) iodideNon-flammable
508CuMoO4copper(II) molybdate13767-34-5
509CuN3copper(I) azide14336-80-2
510CuOcopper(II) oxide1317-38-0Cupric oxideCuOmonoclinic, mS8[1]black powder79.545 g/mol6.31 g/cc1201 °C (1474 K)2000 °C1.2 eVinsolubleCopper(II) sulfideNickel(II) oxide Zinc oxideNon-flammable
511CuScopper(II) sulfide1317-40-4covellite Copper(II) sulfideCuS95.611 g/mol4.6 g/ccabove 500°C (decomposes [2])1.45 [1]insolublesoluble in HNO3, NH4OH, KCN soluble in HCl, H2SO4Copper(II) oxidezinc sulfide
512CuSCNcopper(I) thiocyanate1111-67-7
513CuSecopper(II) selenide1317-41-5
514CuSO4copper(II) sulfate7758-98-7Cupric sulfate Blue vitriol Bluestone ChalcanthiteCuSO4OctahedralTriclinicblue crystalline solid (pentahydrate) gray-white powder (anhydrous)159.61 g/mol (anhydrous) 249.68 g/mol (pentahydrate)3.603 g/cc (anhydrous) 2.284 g/cc (pentahydrate)110 °C (−4H2O) 150 °C (423 K) (−5H2O) < 650 °C decomp.1.514 (pentahydrate)31.6 g/100 ml (0 °C)anhydrous insoluble in ethanol pentahydrate soluble in methanol and ethanol109.05 J K−1 mol−1Nickel(II) sulfate Zinc sulfateNon-flammable
515CuTecopper(II) telluride12019-23-7
516CuWO4copper(II) tungstate13587-35-4
517Dy(CHO2)3dysprosium(III) formate3252-58-2
518Dy2O3dysprosium(III) oxide1308-87-8Dy2O3Cubic, cI80White powder.372.998 g/mol7.80 g/cc2408 °C[1]Negligible
519Dy2S3dysprosium(III) sulfide12133-10-7
520DyB4dysprosium(II) boride12310-43-9
521DyBr2dysprosium(II) bromide83229-05-4
522DyBr3dysprosium(III) bromide14456-48-5
523DyCl2dysprosium(II) chloride13767-31-2
524DyCl3dysprosium(III) chloride10025-74-8DyCl3OctahedralAlCl3 structurewhite solid268.86 g/mol (anhydrous)3.67 g/cm³, solid647 °C (anhydrous)1530 °CSolubleDysprosium(III) fluoride Dysprosium(III) bromide Dysprosium(III) iodideTerbium(III) chloride Dysprosium(II) chloride Holmium(III) chloridenon flammable
525DyF3dysprosium(III) fluoride13569-80-7
526DyH3dysprosium(III) hydride13537-09-2
527DyI2dysprosium(II) iodide36377-94-3
528DyI3dysprosium(III) iodide15474-63-2
529DyNdysprosium(III) nitride12019-88-4
530DySi2dysprosium(II) silicide12133-07-2
531Er(CHO2)3erbium(III) formate15331-72-3
532Er2(SO4)3erbium(III) sulfate13478-49-4
533Er2O3erbium(III) oxide12061-16-4Erbium oxide, erbiaEr2O3Cubic, cI80pink crystals382.56 g/mol8.64 g/cc2344°C3290°C108.5 J/molK-1897.9 kJ·mol-1155.6 J/molK
534Er2S3erbium(III) sulfide12159-66-9
535Er2Te3erbium(III) telluride12020-39-2
536ErB4erbium(III) boride12310-44-0
537ErBr3erbium(III) bromide13536-73-7
538ErCl3erbium(III) chloride10138-41-7Erbium trichlorideErCl3 (anhydrous) ErCl3·6H2O (hexahydrate)violet hygroscopic monoclinic crystals (anhydrous) pink hygroscopic crystals (hexahydrate)273.62 g/mol (anhydrous) 381.71 g/mol (hexahydrate)4.1 g/cc (anhydrous)776 °C (anhydrous) decomposes (hexahydrate)1500 °Csoluble in water (anhydrous) slightly soluble in ethanol (hexahydrate)[1]
539ErCl3-6H2Oerbium(III) chloride hexahydrate10025-75-9
540ErF3erbium(III) fluoride13760-83-3
541ErH3erbium(III) hydride13550-53-3
542ErI3erbium(III) iodide13813-42-8
543ErNerbium(III) nitride12020-21-2
544ErNbO4erbium(III) niobate12061-00-6
545ErSerbium(II) sulfide12159-66-9
546ErTeerbium(II) telluride12020-39-2
547ErVO4erbium(III) vanadate13596-17-3
548Es2O3einsteinium(III) oxide37362-94-0
549EsBr2einsteinium(II) bromide70292-43-2
550EsBr3einsteinium(III) bromide72461-17-7
551EsCl2einsteinium(II) chloride66693-95-6
552EsCl3einsteinium(III) chloride24645-86-1
553EsF3einsteinium(III) fluoride99644-27-6
554EsI2einsteinium(II) iodide70292-44-3
555EsI3einsteinium(III) iodide99644-28-7
556Eu(CHO2)3europium(III) formate3252-55-9
557Eu(NbO3)2europium(II) niobate55216-32-5
558Eu2(SO4)3europium(III) sulfate13537-15-0
559Eu2O3europium(III) oxide1308-96-9Eu2O3Monoclinic, CubicWhite powder.351.926 g/mol7.40 g/cc2350 °C[1]Negligible
560EuBr2europium(II) bromide13780-48-8
561EuBr3europium(III) bromide13759-88-1
562EuCl2europium(II) chloride13769-20-5
563EuCl3europium(III) chloride10025-76-0Tricapped trigonal prismatic (nine-coordinate)hexagonal (UCl3 type), hP8
564EuF2europium(II) fluoride14077-39-5
565EuF3europium(III) fluoride13765-25-8
566EuI2europium(II) iodide22015-35-6
567EuI3europium(III) iodide13759-90-5
568EuNeuropium(III) nitride12020-58-5
569EuSeuropium(II) sulfide12020-65-4
570EuSeeuropium(II) selenide12020-66-5
571EuSi2europium(II) silicide12434-24-1
572EuTeeuropium(II) telluride12020-69-8
573EuVO4europium(II) vanadate13537-11-6
574F2Ofluorine monoxide7783-41-7difluorine monoxide fluorine monoxide oxygen difluoride oxygen fluoride hypofluorous anhydrideOF253.9962 g/mol1.9 g/cc−223.8 °C−144.8 °C24.5 kJ mol−1
575F2O2fluorine dioxide7783-44-0dioxygen difluoride fluorine dioxide difluorine dioxide perfluoroperoxideF2O269.996 g mol−1−154 °C, 119 K, -245 °F−57 °C (extrapolated)
576Fe(AlO2)2iron(II) aluminate12068-49-4
577Fe(C2H3O2)2iron(II) acetate3094-87-9Ferrous acetateFe(CH3CO2)2173.93 g/mol190–200 °C (dec)
578Fe(H2PO2)3iron(III) hypophosphite7783-84-8
579Fe(NO3)2iron(II) nitrate14013-86-6
580Fe(OH)2iron(II) hydroxide18624-44-7Ferrous hydroxideFe(OH)2brown solid89.86 g/mol3.4 g/cc [1]0.00015 g/100 mL (20 °C)Non-flammable
581Fe(OH)3iron(III) hydroxide1309-33-7
582Fe(VO3)3iron(III) metavanadate65842-03-7
583Fe2(C2O4)3iron(III) oxalate19469-07-9
584Fe2(Cr2O7)3iron(III) dichromate10294-53-8
585Fe2(CrO4)3iron(III) chromate10294-52-7Fe2(CrO4)3yellow powder459.671 g/molinsoluble
586Fe2(SO4)3iron(III) sulfate10028-22-5Ferric sulfate Sulfuric acid, iron(3+) salt (3:2)Fe2(SO4)3white crystals399.88 g/mol (anhydrous) 489.96 g/mol (pentahydrate)3.097 g/cc (anhydrous) 1.898 g/cc (pentahydrate)480 °C (anhydrous) 175 °C (nonhydrate)SolubleIron(III) chloride Iron(III) nitrate
587Fe2O3iron(III) oxide1309-37-1Ferric oxide HematiteFe2O3rhombohedralred-brown solid159.69 g/mol5.242 g/cc, solid1566 °C (1838 K) decomp.insoluble−825.50 kJ/moliron(III) fluoridemanganese(III) oxide, cobalt(III) oxidenon-flammable
588Fe2SiO4iron(II) orthosilicate10179-73-4
589Fe3(PO4)2iron(II) phosphate14940-41-1
590Fe3O4iron(II,III) oxide1317-61-9
591Fe4(Fe(CN)6)3iron(III) ferrocyanide14038-43-8
592Fe4(P2O7)3iron(III) pyrophosphate10058-44-3
593FeAsiron(III) arsenic12044-16-5
594FeBr2iron(II) bromide7789-46-0Ferrous bromideFeBr2octahedralRhombohedral, hP3, SpaceGroup = P-3m1, No. 164yellow-brown solid215.65 g/mol4.63 g/cc, solid684 °C934 °CsolubleIron(II) chlorideiron(III) bromide
595FeBr3iron(III) bromide10031-26-2Ferric bromide Iron tribromideFeBr3Trigonal, hR24brown solid295.56 g/mol4.50 g/cc200 °C (decomposes)
596FeCl2iron(II) chloride7758-94-3Ferrous chloride, RokühniteFeCl2octahedral at FeMonoclinictan solid (anhydrous) pale green solid (di-tetrahydrate)126.751 g/mol (anhydrous) 198.8102 g/mol (tetrahydrate)3.16 g/cc (anhydrous) 2.30 g/cc (dihydrate) 1.39 g/cc (tetrahydrate)677 °C (anhydrous) 120 °C (dihydrate) 105 °C (tetrahydrate) [1]1023 °C (anhydrous)64.4 g/100 mL (10°C), 68.5 g/100mL (20°C), 105.7 g/100 mL (100°C)Iron(II) fluoride Iron(II) bromide Iron(II) iodideCobalt(II) chloride Manganese(II) chloride Copper(II) chloride
597FeCl2-2H2Oiron(II) chloride dihydrate16399-77-2Ferrous chloride, RokühniteFeCl2octahedral at FeMonoclinictan solid (anhydrous) pale green solid (di-tetrahydrate)126.751 g/mol (anhydrous) 198.8102 g/mol (tetrahydrate)3.16 g/cc (anhydrous) 2.30 g/cc (dihydrate) 1.39 g/cc (tetrahydrate)677 °C (anhydrous) 120 °C (dihydrate) 105 °C (tetrahydrate) [1]1023 °C (anhydrous)64.4 g/100 mL (10°C), 68.5 g/100mL (20°C), 105.7 g/100 mL (100°C)Iron(II) fluoride Iron(II) bromide Iron(II) iodideCobalt(II) chloride Manganese(II) chloride Copper(II) chloride
598FeCl2-4H2Oiron(II) chloride tetrahydrate13478-10-9Ferrous chloride, RokühniteFeCl2octahedral at FeMonoclinictan solid (anhydrous) pale green solid (di-tetrahydrate)126.751 g/mol (anhydrous) 198.8102 g/mol (tetrahydrate)3.16 g/cc (anhydrous) 2.30 g/cc (dihydrate) 1.39 g/cc (tetrahydrate)677 °C (anhydrous) 120 °C (dihydrate) 105 °C (tetrahydrate) [1]1023 °C (anhydrous)64.4 g/100 mL (10°C), 68.5 g/100mL (20°C), 105.7 g/100 mL (100°C)Iron(II) fluoride Iron(II) bromide Iron(II) iodideCobalt(II) chloride Manganese(II) chloride Copper(II) chloride
599FeCl3iron(III) chloride7705-08-0Ferric chloride Molysite Flores martisFeCl3octahedralhexagonalgreen-black by reflected light; purple-red by transmitted light hexahydrate: yellow solid aq. solutions: brown162.2 g/mol (anhydrous) 270.3 g/mol (hexahydrate)2.898 g/cc (anhydrous)306 °C (anhydrous) 37 °C (hexahydrate)315 °C (anhydrous, decomp) 280 °C (hexahydrate, decomp) (partial decomposition to FeCl2 + Cl2)74.4 g/100 mL (0 °C) [1] 92 g/100 mL (20 °C) 92 g/100 mL (hexahydrate, 20 °C)Iron(III) fluoride Iron(III) bromideIron(II) chloride Manganese(II) chloride Cobalt(II) chloride Ruthenium(III) chloride40% solution: 12 cP
600FeCl3-6H2Oiron(III) chloride hexahydrate10025-77-1Ferric chloride Molysite Flores martisFeCl3octahedralhexagonalgreen-black by reflected light; purple-red by transmitted light hexahydrate: yellow solid aq. solutions: brown162.2 g/mol (anhydrous) 270.3 g/mol (hexahydrate)2.898 g/cc (anhydrous)306 °C (anhydrous) 37 °C (hexahydrate)315 °C (anhydrous, decomp) 280 °C (hexahydrate, decomp) (partial decomposition to FeCl2 + Cl2)74.4 g/100 mL (0 °C) [1] 92 g/100 mL (20 °C) 92 g/100 mL (hexahydrate, 20 °C)Iron(III) fluoride Iron(III) bromideIron(II) chloride Manganese(II) chloride Cobalt(II) chloride Ruthenium(III) chloride40% solution: 12 cP
601FeCO3iron(II) carbonate563-71-3
602FeCr2O4iron chromite1308-31-2
603FeF2iron(II) fluoride7789-28-8FeF2Rutile (tetragonal), tP6white crystalline solid93.84 g/mol (anhydrous) 165.90 g/mol (tetrahydrate)4.09 g/cc (anhydrous) 2.20 g/cc (tetrahydrate)970 °C (anhydrous) 100 °C (tetrahydrate) [1]1100 °C (anhydrous)insoluble in ethanol, ether; dissolves in HFiron(II) oxide, iron(II) chloridemanganese(II) fluoride, cobalt(II) fluoride
604FeF2-4H2Oiron(II) fluoride tetrahydrate13940-89-1
605FeF3iron(III) fluoride7783-50-8iron trifluoride, ferric fluorideFeF3Rhombohedral, hR24pale green solid112.84 g/mol3.87 g/cc>1000°Cslightly solubleiron(III) oxide, iron(III) chloridemanganese trifluoride, cobalt trifluoride, ruthenium(III) fluoride
606FeF3-3H2Oiron(III) fluoride trihydrate15469-38-2
607FeI2iron(II) iodide7783-86-0
608FeI3iron(III) iodide15600-49-4
609FeMoO4iron(II) molybdate13718-70-2
610FeOiron(II) oxide1345-25-1Ferrous oxideFeOblack crystals71.844 g/mol5.745 g/cc1377 °C, 1650 K, 2511 °F ([1])3414 °C, 3687 K, 6177 °FInsolubleinsoluble in alkali, dissolves in acidiron(II) fluoride, iron(II) sulfide, iron(II) selenide, iron(II) telluridemanganese(II) oxide, cobalt(II) oxidevariable
611FePO4iron(III) phosphate10045-86-0
612FeSiron(II) sulfide1317-37-9Iron sulfideFeSblack solid87.910 g/mol4.84 g/cc1194 °Cnegligible (insoluble)reacts in acidvariable
613FeSeiron(II) selenide1310-32-3
614FeSO4iron(II) sulfate7720-78-7Ferrous sulphate; Green vitriol; Iron vitriol; Copperas; Melanterite; SzomolnokiteFeSO4blue/green or white crystals151.908 g/mol (anhydrous) 169.92 g/mol (monohydrate) 278.05 g/mol (heptahydrate)2.84 g/cc (anhydrous) 1.898 g/cc (heptahydrate)400 °C (decomp)25.6 g/100mL (anhydrous)Non-flammable
615FeTeiron(II) telluride12125-63-2
616FeTiO4iron(II) titanate12168-52-4
617FeWO4iron(II) tungstate13870-24-1
618FNO3fluorine nitrate7789-26-6
619FOClO3fluorine perchlorate10049-03-3Fluorine perchlorateFClO4-167.3 °C-16 °C9 kcal/mol[1]
620Ga(NO3)3gallium(III) nitrate13494-90-1
621Ga(OH)3gallium(III) hydroxide12023-99-3Gallium trihydroxideGa(OH)3120.7437 g/mol
622Ga2(SO4)3gallium(III) sulfate13494-91-2
623Ga2Cl4gallium(I,III) chloride24597-12-4
624Ga2Ogallium(I) oxide12024-20-3
625Ga2O3gallium(III) oxide12024-21-4gallium trioxide, gallium sesquioxideGa2O3white crystalline powder187.444 g/mol6.44 g/cc, alpha 5.88 g/cc, beta1900°C, alpha 1725°C, beta [1]insolublesoluble in most acids
626Ga2S3gallium(III) sulfide12024-22-5
627Ga2Se3gallium(III) selenide12024-24-7gallium triselenideGa2Se3reddish-black crystals376.33 g/mol4.92 g/cc1020°CdecompositionGallium(III) oxide, Gallium(III) sulfide, Gallium tribromide, Gallium(III) tellurideAluminium(III) selenide, Indium(III) selenide
628Ga2Te3gallium(III) telluride12024-27-0gallium tellurideGa2Te3cubic crystals522.25 g/mol5.57 g/cc790 °Cgallium(III) oxide, gallium(III) sulfide, gallium(III) selenide, gallium triiodidealuminium(III) telluride, indium(III) telluride
629GaAsgallium(III) arsenide1303-00-0GaAsTetrahedralZinc BlendeGray cubic crystals144.645 g/mol5.316 g/cc [1]1238 °C (1511 K)0.55 W/(cm*K) (300 K)1.424 eV (300 K)8500 cm2/(V*s) (300 K)3.3< 0.1 g/100 ml (20 °C)
630GaBr3gallium(III) bromide13450-88-9gallium tribromideGaBr3white powder309.435 g/mol3.69 g/cc121.5°C278.8°Csoluble
631GaCl2gallium(II) chloride24597-12-4
632GaCl3gallium trichloride13450-90-3Gallium(III) chloride, Trichlorogallium, TrichlorogallaneGaCl3colorless crystals179.03 g/mol2.47 g/cc 2.053 g/cc at melting point77.9 °C, 351 K, 172 °F201 °C, 474 K, 394 °Fvery solubleGallium(III) fluoride Gallium(III) bromide Gallium(III) iodideAluminium chloride Indium(III) chloride Thallium(III) chlorideNon-flammable
633GaF3gallium(III) fluoride7783-51-9gallium trifluorideGaF3Rhombohedral, hR24white powder126.718 g/mol4.47 g/cc800 °C1000°C0.0002 g/100 mL
634GaF3-3H2Ogallium(III) fluoride trihydrate22886-66-4
635GaH3gallium(III) hydride13572-93-5
636GaI3gallium(III) iodide13450-91-4gallium triiodideGa2I6light yellow powder450.436 g/mol4.15 g/cc212 °C345 °Cdecomposes
637GaNgallium(III) nitride25617-97-4GaNTetrahedralWurtziteyellow powder83.73 g/mol6.15 g/cc>2500°C[1]1.3 W/(cm*K) (300 K)3.2 eV (300 K)440 cm2/(V*s) (300 K)2.429Reacts.Gallium phosphide Gallium arsenide Gallium antimonideBoron nitride Aluminium nitride Indium nitrideNon-flammable.
638GaOgallium(II) oxide12024-08-07
639GaPgallium(III) phosphide12063-98-8GaPTetrahedralZinc Blendepale orange solid100.697 g/mol4.138 g/cc1477 °C, 1750 K, 2691 °F1.1 W/(cm*K) (300 K)2.26 eV (300 K)250 cm2/(V*s) (300 K)3.02insolubleGallium nitride Gallium arsenide Gallium antimonideAluminium phosphide Indium phosphide110 °C
640GaSgallium(II) sulfide12024-10-1gallium sulfideGaShexagonal, hP8yellow101.789 g/mol3.86 g/cc, solid965°C
641GaSbgallium(III) antimonide12064-03-8Gallium antimonideGaSbSphalerite, cF8191.483 g/mol5.614 g/cc712 °C0.32 W/(cm*K) (300 K)0.726 eV (300 K)3000 cm2/(V*s) (300 K)3.8insolublenon-flammable
642GaSegallium(II) selenide12024-11-2Gallium monoselenideGaSehexagonal, hP8brown solid148.69 g/mol5.03 g/cc960 °C, 1233 K, 1760 °FGallium(II) oxide, Gallium(II) sulfide, Gallium(II) tellurideZinc(II) selenide, Germanium monoselenide, Indium monoselenide
643GaTegallium(II) telluride12024-14-5gallium tellurideGaTehexagonal, hP8black pieces197.32 g/mol5.44 g/cc, solid824°Cgallium(II) oxide, gallium(II) sulfide, gallium monoselenidezinc(II) telluride, germanium(II) telluride, indium(II) telluride
644Gd(CHO2)3gadolinium(III) formate3252-56-0
645Gd2O3gadolinium(III) oxide12064-62-9gadolinium sesquioxide, gadolinium trioxideGd2O3Monoclinic, Cubicwhite odorless powder362.50 g/mol7.407 g/cc (15°C) 7.07 g/cc (25 °C) [1]2420°Cinsolublesoluble in acid
646Gd2S3gadolinium(III) sulfide12134-77-9
647Gd2Te3gadolinium(III) telluride12160-99-5
648GdBr3gadolinium(III) bromide13818-75-2
649GdCl3gadolinium(III) chloride10138-52-0Gadolinium trichlorideGdCl3hexagonal, hP8white crystals hygroscopic263.61 g/mol4.52 g/cc609 °C1580 °Csoluble
650GdCl3-6H2Ogadolinium(III) chloride hexahydrate19423-81-5
651GdF3gadolinium(III) fluoride13765-26-9
652GdI2gadolinium(II) iodide13814-72-7
653GdI3gadolinium(III) iodide13572-98-0
654GdNgadolinium(III) nitride25764-15-2
655GdSegadolinium(II) selenide12024-81-6
656GdSi2gadolinium(II) silicide12134-75-7
657Ge(CH3O)4germanium(IV) methoxide992-91-6
658Ge3N4germanium(IV) nitride12065-36-0
659GeBr2germanium(II) bromide24415-00-7
660GeBr4germanium(IV) bromide13450-92-5
661GeCl2germanium(II) chloride10060-11-4Germanium(II) chloride, dichlorogermyleneGeCl2white-pale yellow solid143.546 g/mol
662GeCl4germanium(IV) chloride10038-98-9Germanium(IV) chloride Germanium chlorideGeCl4colourless liquid214.40 g/mol1.879 g/cc (20 °C) 1.844 g/cc (30 °C) [1]-49.5 °C, 224 K, -57 °F86.5 °C, 360 K, 188 °F1.464decomp.soluble in ether, benzene, chloroform, CCl4 insoluble in HCl, H2SO4Germanium tetrafluoride Germanium tetrabromide Germanium tetraiodideCarbon tetrachloride Silicon tetrachloride Tin(IV) chloride Lead(IV) chlorideNot flammable
663GeF2germanium(II) fluoride13940-63-1
664GeF4germanium(IV) fluoride7783-58-6
665GeH4germanium(IV) hydride7782-65-2Germanium tetrahydride Germanomethane MonogermaneGeH4Colorless gas76.62 g/mol13.3 kg/m3 gas−165 °C (108 K)−88 °C (195 K)O Dlow
666GeI2germanium(II) iodide13573-08-5
667GeI4germanium(IV) iodide13450-95-8
668GeOgermanium(II) oxide20619-16-3
669GeO2germanuim(IV) oxide1310-53-8Germanium(IV) oxide Germania ACC10380 G-15GeO2white powder or colourless crystals104.61 g/mol4.228 g/cc400 °C1200 °C5.2 g/l (25 °C) 10.7 g/l (100 °C)Germanium disulfide Germanium diselenideCarbon dioxide Silicon dioxide Tin dioxide Lead dioxideNon-flammable
670GeSgermanium(II) sulfide12025-32-0
671GeS2germanium(IV) sulfide12025-34-2Germanium(IV) sulfideGeS2monoclinic, mP36white solid136.74 g/mol2.94 g/ccabout 800 °CGermanium dioxide Germanium diselenideCarbon disulfide Silicon sulfide Tin disulfide Lead disulfide
672GeSegermanium(II) selenide12065-10-0
673GeSe2germanium(IV) selenide12065-11-1
674GeTegermanium(II) telluride12025-39-7
675Hf(SO4)2hafnium sulfate15823-43-5
676HfB2hafnium boride12007-23-7HfB2Hexagonal, hP3200.11 g/mol10.5 g/ccca. 3250 °C
677HfBr4hafnium bromide13777-22-5
678HfChafnium carbide12069-85-1HfCcubic, cF8black odorless powder190.50 g/mol12.2 g/cc, solid>3890 °C (>4163K)insoluble
679HfCl4hafnium chloride13499-05-3HfCl4Monoclinicwhite crystalline solid320.30 g/mol432 °C (705 K)1 mmHg at 190 °CdecomposesHafnium(IV) fluoride Hafnium(IV) bromide Hafnium(IV) iodideTitanium(IV) chloride Zirconium(IV) chlorideNon-flammable
680HfF4hafnium fluoride13709-52-9
681HfH2hafnium hydride12770-26-2
682HfI3hafnium iodide13779-73-2
683HfNhafnium nitride25817-87-2
684HfO2hafnium oxide12055-23-1Hafnium dioxide HafniaHfO2off-white powder210.49 g/mol9.68 g/cc, solid2758 °C5400 °CinsolubleTitanium(IV) oxide Zirconium(IV) oxideNon-flammable
685HfPhafnium phosphide12325-59-6
686HfS2hafnium sulfide18855-94-2
687HfSe2hafnium selenide12162-21-9
688HfSi2hafnium silicide12401-56-8
689HfSiO4hafnium orthosilicate13870-13-8
690Hg(C2H3O2)2mercury(II) acetate1600-27-7mercuric acetate mercuriacetateC4H6O4Hgwhite crystals318.70 g/mol3.27 g/cm³, solid179°C (decomposes)25 g/100 mL (10°C)soluble in alcohol
691Hg(IO3)2mercury(II) iodate7783-32-6
692Hg(NO3)2mercury(II) nitrate10045-94-0Mercuric nitrateHg(NO3)2colorless crystals or white powder324.7 g/mol4.3 g/cc (monohydrate)79 °C (monohydrate)solublesoluble in nitric acid insoluble in alcoholMercury(II) sulfate Mercury(II) chlorideZinc nitrate Cadmium nitrateNon-flammable
693Hg(ONC)2mercury(II) fulminate628-86-4Hg(CNO)2Grey Crystalline solid284.624 g/mol4.43 g/ccslightly solublesoluble in ethanol, ammonia180 °C
694Hg(SCN)2mercury(II) thiocyanate592-85-8mercuric thiocyanate mercuric sulfocyanateHg(SCN)2white monoclinic crystals316.79 g/mol3.71 g/cm³, soliddecomposes at 165°C0.070 g/100 mLsoluble in dilute hydrochloric acid[1]
695Hg2Br2mercury(I) bromide15385-58-7Mercurous bromideHg2Br2white tetragonal crystals560.99 g/mol7.307 g/cm³, solid405°Csublimes at 340-350°C [1]3.9 x 10-5 g/100 mLMercury(I) fluoride Mercury(I) chloride Mercury(I) iodideZinc bromide Cadmium bromide Mercury(II) bromidenon-flammable
696Hg2Cl2mercury(I) chloride10112-91-1Mercurous chloride CalomelHg2Cl2White solid472.09 g/mol7.150 g/cc525 °C (triple point)383 °C (sublimes)1.9730.2 mg/100 mLinsoluble in ethanol, etherMercury(I) fluoride Mercury(I) bromide Mercury(I) iodideMercury(II) chlorideNon-flammable
697Hg2F2mercury(I) fluoride1396-75-4Mercurous fluorideHg2F2yellow cubic crystals439.177 g/mol8.73 g/cm³, solidsublimes at -240°Cdecomposes at 570°C [1]decomposesMercury(I) chloride Mercury(I) bromide Mercury(I) iodideZinc fluoride Cadmium fluoride Mercury(II) fluoridenon-flammable
698Hg2I2mercury(I) iodide15385-57-6Mercurous iodideHg2I2yellow powder[1]654.98g mol-17.7 g cm-3[2]140 ËÅ¡C (Sublimes)Slightly soluble in water, insoluble in alcohol
699Hg2Omercury(I) oxide15829-53-5
700HgBr2mercury(II) bromide7789-47-1Mercuric bromideHgBr2white solid360.41 g/mol6.03 g/cm³, solid236 °C322 °CMercury(II) fluoride Mercury(II) chloride Mercury(II) iodideZinc bromide Cadmium bromide Mercury(I) bromideNon-flammable
701HgCl2mercury(II) chloride7487-94-7Mercuric chloride Corrosive sublimateHgCl2linearorthogonalwhite solid271.52 g/mol5.43 g/cc276 °C, 549 K, 529 °F304 °C, 577 K, 579 °Fzero7.4 g/100 ml (20 °C)soluble in alcohol, ether, acetone, ethyl acetate slightly soluble in benzene, CS2Mercury(II) fluoride Mercury(II) bromide Mercury(II) iodideZinc chloride Cadmium chloride Mercury(I) chlorideNon-flammable3.2 (0.2M solution)
702HgCl2O8mercury(II) perchlorate73491-34-6
703HgF2mercury(II) fluoride7783-39-3Mercuric fluorideHgF2Fluorite (cubic), cF12hygroscopic white cubic crystals238.59 g/mol8.95 g/ccdecomposes at 645°Creacts[1]Mercury(II) chloride Mercury(II) bromide Mercury(II) iodideMercury(I) fluoride Cadmium fluoride Thallium(I) fluoride
704HgH2mercury(II) hydride72172-67-9
705HgI2mercury(II) iodide7774-29-0Mercuric iodideHgI2scarlet red powder454.40 g/mol6.36 g/cc259 °C350 °C6 mg/100 mlMercury(II) fluoride Mercury(II) chloride Mercury(II) bromideZinc iodide Cadmium iodideNon-flammable
706HgOmercury(II) oxide21908-53-2Mercuric oxide MontroyditeHgOYellow or red solid216.59 g/mol11.14 g/cc500 °C decomp.2.2 eV [1]2.5 (550 nm) [1]InsolubleMercury sulfide Mercury selenide Mercury tellurideZinc oxide Cadmium oxideNon-flammable
707HgSmercury(II) sulfide1344-48-5Cinnabar VermillionHgS232.66 g/mol8.10 g/cc580 °C decomp.2.1 eV (direct, α-HgS) [1]w=2.905, e=3.256, bire=0.3510 (α-HgS) [2]insolubleMercury oxide Mercury selenide Mercury tellurideZinc sulfide Cadmium sulfideNon-flammable
708HgSemercury(II) selenide20601-83-6HgSesphaleritegrey-black solid279.55 g/mol8.3 g/cc1270 K178 J kg−1 K−1insoluble247 kJ/molMercury oxide Mercury sulfide Mercury tellurideZinc selenide Cadmium selenideNon-flammable
709HgSO4mercury(II) sulfate7783-35-9mercuric sulfateHgSO4white monoclinic crystals296.65 g/mol6.47 g/cm³, solidreacts with water[1]soluble in hot HSO4, NaCl solution-707.5 kJ mol-1[2]
710HgTemercury(II) telluride12068-90-5Mercuric telluride, mercury(II) tellurideHgTeSphalerite, cF8near black cubic crystals329.18 g/mol8.1 g/cc
711Ho(CHO2)3holmium formate3252-59-3
712Ho2O3holmium oxide12055-62-8Holmium oxide, HolmiaHo2O3Cubic, cI80, SpaceGroup = Ia-3, No. 206yellow cubic crystals377.859 g/mol8.41 g/cc2415 °C3900 °C115.0 J•mol-1•K-1[2]5.3 eV [1]1.8 [1]insoluble-1880.7 kJ•mol-1158.2 J•mol-1•K-1
713Ho2S3holmium sulfide12162-59-3
714HoBr3holmium bromide13825-76-8
715HoCl3holmium chloride10138-62-2
716HoF3holmium fluoride13760-78-6
717HoI3holmium iodide13813-41-7
718HoNholmium nitride12029-81-1
719HoSi2holmium silicide12136-24-2
720HoVO4holmium vanadate13977-63-4
721I2O4diiodine tetroxide12399-08-5
722I2O5diiodine pentoxide12029-98-0
723IBriodine monobromide7789-33-5
724ICliodine monochloride7790-99-0Iodine chlorideIClred to brown liquid162.35 g/mol3.10 g/cc27°C (α-form)97.4°C (370.6 K)hydrolysis
725ICl3iodine trichloride865-44-1I2Cl6yellow solid466.5281 g/mol
726IFiodine monofluoride13873-84-2
727IF3iodine(III) fluoride22520-96-3
728IF5iodine pentafluoride7783-66-6iodine pentafluorideIF5tetragonal-pyramidalmonoclinic point group C2/cpale yellow liquid221.89 g/mol3.250 g/cc9.43 °C, 283 K, 49 °F97.85 °C, 371 K, 208 °Freacts [1]Diiodine pentoxideBromine pentafluoride
729IF7iodine heptafluoride16921-96-3iodine fluoride heptafluoroiodineIF7259.90 g/mol12.6 g/cc (6 °C) 2.7 g/cc (25 °C)4.5°C (triple point)4.8°C (sublimes at 1 atm)soluble [1]
730In(C2H3O2)3indium(III) acetate25114-58-3
731In(OH)3indium(III) hydroxide20661-21-6
732In2(SO4)3indium(III) sulfate13464-82-9In2(SO4)3white-gray odorless powder, hygroscopic517.81 g/mol3.44 g/cm³, soliddecomposes at 600 °C[1]soluble, (53.92g/100g at 20 °C[2])
733In2I4indium(I,III) iodide13779-78-7
734In2O3indium(III) oxide1312-43-2indium trioxideIn2O3yellowish green odorless pieces277.64 g/mol7.179 g/cc, solid1910°Cinsoluble
735In2S3indium(III) sulfide12030-24-9indium sesquisulfide, diindium trisulphideIn2S3red powder325.82 g/mol4.90 g/cm³, solid1050.0 °Cinsoluble
736In2Se3indium(III) selenide1312-42-1indium selenide, indium sesquiselenideIn2Se3black crystalline solid466.516 g/mol5.80 g/cm³
737In2Te3indium(III) telluride1312-45-4indium tritellurideIn2Te3blue cubic crystals612.44 g/mol5.75 g/cm³, solid667°C[1]
738IN3iodine monoazide14696-82-3
739InAsindium(III) arsenide1303-11-3Indium monoarsenideInAsZinc Blende189.740 g/mol5.67 g/cc942°C0.27 W/(cm*K) (300 K)47.8 J/molK0.354 eV (300 K)40000 cm2/(V*s)3.51-58.6 kJ·mol-175.7 J/molKIndium phosphide Indium antimonideGallium arsenide
740InBrindium(I) bromide14280-53-6InBr194.722 g/mol4.960 g/cc285 °C656 °C
741InBr2indium(II) bromide21264-43-7
742InBr3indium(III) bromide13465-09-3InBr3Monoclinic, mS16hygroscopic yellow-white monoclinic crystals354.530 g/cc4.74 g/cc420°C414 g/100 mL at 20°C-428.9 kJ·mol-1indium(III) fluoride indium(III) chloride indium(III) iodide
743InClindium(I) chloride13465-10-6
744InCl2indium(II) chloride13465-11-7
745InCl3indium(III) chloride10025-82-8Indium chlorideInCl3Monoclinic, mS16white flakes221.18 g/mol3.46 g/cc586 °C800 °Csoluble, exothermicIndium(III) fluoride Indium(III) bromide Indium(III) iodideAluminium chloride Gallium trichloride Thallium(III) chloride
746InFindium(I) fluoride74508-07-9
747InF3indium(III) fluoride7783-52-0Indium trifluorideInF3Rhombohedral, hR24171.82 g/mol1172°C[1]Indium(III) chloride Indium(III) bromide Indium(III) iodideAluminum fluoride Gallium(III) fluoride Thallium(I) fluoridenon-flammable
748InF3-3H2Oindium(III) fluoride trihydrate14166-78-0
749InF3-9H2Oindium(III) fluoride nonahydrate7783-52-0
750InHindium(I) hydride13939-13-4
751InIindium(I) iodide13465-10-6
752InI3indium(III) iodide13510-35-5
753InNindium(III) nitride25617-98-5Indium(III) nitrideInNTetrahedralWurtzite (hexagonal)black powder128.83 g/mol6.81 g/cc1100 ºC0.45 W/(cm*K) (300 K)0.65 eV (300 K)3200 cm2/(V*s) (300 K)2.9hydrolysisIndium phosphide Indium arsenide Indium antimonideBoron nitride Aluminium nitride Gallium nitride
754InPindium(III) phosphide22398-80-7Indium(III) phosphideInPTetrahedralZinc Blendeblack cubic crystals145.792 g/mol4.81 g/cc, solid1062 °C (1335 K)0.68 W/(cm*K) (300 K)45.4 J•mol-1•K-1[3]1.344 eV (300 K; direct)5400 cm2/(V*s) (300 K)3.1 (infrared); 3.55 (632.8 nm)[2]slightly soluble in acids[1]-88.7 kJ•mol-159.8 J•mol-1•K-1Indium nitride Indium arsenide Indium antimonideAluminium phosphide Gallium phosphide
755InPO4indium(III) phosphate14693-82-4
756InSindium(II) sulfide12030-14-7
757InSbindium(III) antimonide1312-41-0Indium antimonideInSbTetrahedralZincblendedark grey silvery metal pieces236.578 g/mol5.775 g/cc527 °C[1]0.18 W/(cm*K) (300 K)0.17 eV77000 cm2/(V*s) (300 K)4insoluble
758InSeindium(II) selenide1312-42-1
759InTeindium(II) telluride12030-19-2
760Ir2O3iridium(III) oxide12030-49-8
761Ir2S3iridium(III) sulfide12136-42-4
762IrBr2iridium(II) bromide77791-70-9
763IrBr3iridium(III) bromide10049-24-8
764IrBr4iridium(IV) bromide7789-64-2
765IrCl2iridium(II) chloride13465-17-3
766IrCl3iridium(III) chloride10025-83-9Iridium trichlorideIrCl3Monoclinic, mS16dark green solid hygroscopic298.58 g/mol (anhydrous)5.30 g/cc, solid763 °C (decomp.)soluble-257 kJ/molIridium(III) fluoride Iridium(III) bromide Iridium(III) iodideRhodium(III) chloridenon-flammable
767IrCl4iridium(IV) chloride10025-97-5
768IrF3iridium(III) fluoride23370-59-4
769IrF4iridium(IV) fluoride37501-24-9Iridium tetrafluorideIrF4dark brown solid268.2109 g/moliridium dioxide, iridium tetrachloride, iridium tetrabromiderhodium(IV) fluoride, osmium(IV) fluoride, platinum(IV) fluoride
770IrF5iridium(V) fluoride14568-19-5Iridium pentafluorideIrF5yellow solid287.209 g/mol104.5°Crhodium(V) fluoride, osmium pentafluoride, platinum(V) fluoride
771IrF6iridium(VI) fluoride7783-75-7iridium hexafluorideIrF6yellow solid306.25.11 g cm−1 (−140 °C)44 °C53 °Csoluble in HFrhodium(VI) fluoride, osmium hexafluoride, platinum hexafluoride
772IrI2iridium(II) iodide19253-38-4
773IrI3iridium(III) iodide7790-41-2
774IrI4iridium(IV) iodide7790-45-6
775IrO2iridium(IV) oxide12030-49-8Iridium dioxideIrO2Octahedral (Ir); Trigonal (O)Rutile (tetragonal)black solid224.22 g/mol11.66 g/cc1100 °C decomp.insolubleiridium(IV) fluoride, iridium disulfiderhodium dioxide, osmium dioxide, platinum dioxideNon-flammable
776IrO2-2H2Oiridium(II) oxide dihydrate30980-84-8
777IrS2iridium(IV) sulfide12030-51-2
778IrSe2iridium(III) selenide12030-55-6
779IrTe3iridium(III) telluride12196-62-2
780K(HF)2potassium bifluoride7789-29-9Potassium hydrogen difluorideHF2Kmonocliniccolourless solid78.103 g/mol2.37 g/cc239 °Cdecomp.Potassium fluorideSodium bifluoride, ammonium bifluoridenon flammable
781K2C2O4potassium oxalate583-52-8
782K2C4H6O6potassium tartrate921-53-9Dipotassium tartrate; Argol; E336C4H4K2O6226.27 g/mol
783K2C6H8O4potassium adipate19147-16-1K2C6H8O4
784K2CO3potassium carbonate584-08-7
785K2Cr2O7potassium dichromate7778-50-9Potassium bichromateK2Cr2O7Tetrahedral (for Cr)Triclinic (α-form, <241.6 °C)red-orange crystalline solid294.185 g/mol2.676 g/cc, solid398°C500°C decomp.4.9 g/100 ml (0°C) 102 g/100 mL (100 °C)insoluble in alcohol-2033 kJ/mol291.2 J K−1 mol−1Potassium chromate Potassium molybdate Potassium tungstateAmmonium dichromate Sodium dichromatenon-flammable
786K2CrO4potassium chromate7789-00-6Chromic acid, (H2CrO4), dipotassium saltCrK2O4Yellow odorless powder194.19 g mol−12.7320 g/cc968 °C, 1241 K, 1774 °F1000 °C, 1273 K, 1832 °F63 g/100 mL (20 °C)insoluble in alcoholPotassium dichromate Potassium molybdate Potassium tungstateSodium chromate Calcium chromate Barium chromate
787K2FeO4potassium ferrate39469-86-8Potassium ferrate Dipotassium ferrateK2FeO4TetrahedralK2SO4 motifDark purple solid198.0392 g/mol2.829 g/cc, solid>198 °C (decomposition temp)0 Dsoluble in 1M KOHK2MnO4 K2CrO4 K2RuO4BaFeO4 Na2FeO4non-combustible
788K2H2S2O3potassium thiosulfate10294-66-3
789K2Opotassium oxide12136-45-7Potassium monoxideK2OTetrahedral (K+); cubic (O2–)Antifluorite (cubic), cF12pale yellow solid94.20 g/mol2.35 g/cc>490 °C decomp.Decomposes violently, forming KOHPotassium sulfideLithium oxide Sodium oxide Rubidium oxide Caesium oxideNon-flammable
790K2O2potassium peroxide17014-71-0K2O2Orthorombicyellow amorphous solid110.196 g/mol490°Creacts with water[1]-494.1 kJ•mol-1102.1 J•mol-1•K-1[1]Potassium oxide Potassium superoxide Potassium chlorideLithium peroxide Sodium peroxide
791K2PdCl4potassium tetrachloropallidate10025-98-6
792K2RuCl6potassium hexachlororuthenate18746-63-9
793K2Spotassium sulfide1312-73-8Dipotassium monosulfide, Dipotassium sulfide, Potassium monosulfideK2SantiFluoritepure: colourless impure: yellow-brown110.262 g/mol1.8 g/cc840 °Cdecomposesconverts to KSH, KOH
794K2S2O5potassium metabisulfite16731-55-8Potassium pyrosulfite Dipotassium disulfiteK2O5S2White crystalline powder with pungent odour222.32 g mol−12.34 g/cc (solid)190 °C decomp.goodPotassium bisulfite Potassium sulfiteSodium metabisulfite
795K2S2O7potassium pyrosulfate7790-62-7dipotassium (sulfonatooxy)sulfonate; Potassium pyrosulphate; potassium disulfateK2O7S2254.32 g mol−12.28 g/cc325 °C, 598 K, 617 °Fsoluble
796K2S2O8potassium persulfate7727-21-1potassium peroxydisulfate Anthion potassium perdisulfateK2S2O8white powder270.322 g/mol2.477 g/cc [1]<100 °C decomp.1.75 g/100 mL (0 °C) 5.29 g/100 ml (20 ºC)Potassium sulfite Potassium sulfate Potassium peroxymonosulfateSodium persulfateNon-flammable
797K2Sepotassium selenide1312-74-9
798K2SiF6potassium hexafluorosilicate16871-90-2
799K2SiO4potassium silicate10006-28-7Waterglass Liquid glassK2O3Si154.28 g mol−1SolublePotassium carbonate Potassium germanate Potassium stannate Potassium plumbateSodiumsilicate
800K2SO4potassium sulfate7778-80-5Potassium sulphateK2SO4orthorhombicWhite crystalline solid174.259 g/mol2.66 g/cc [1]1069 °C, 1342 K, 1956 °F1689 °C, 1962 K, 3072 °F11.1 g/100 ml (20 °C) 12 g/100 mL (25 °C) 24 g/100 mL (100 °C)slightly soluble in glycerol insoluble in acetone, alcohol, CS2Potassium selenate Potassium tellurateLithium sulfate Sodium sulfate Rubidium sulfate Caesium sulfateNon-flammable
801K2Tepotassium telluride12142-40-4
802K2TeO3potassium tellurite15571-91-2
803K2TiF6potassium hexafluorotitanate16919-27-0
804K2ZrF6potassium hexafluorozirconate16923-95-8
805K3(Fe(CN)6)potassium ferricyanide13746-66-2Red prussiate Prussian red Potassium ferricyanideC6N6FeK3octahedral at Femonoclinicdeep red crystals329.24 g/mol1.89 g/cc, solid300 °C, 573 K, 572 °Fdecomp.33 g/100 mL ("cold water") 46.4 g/100mL (20°C) 77.5 g/100 mL ("hot water")[1]slightly soluble in alcohol soluble in acidPotassium ferrocyanidePrussian blueNon-flammable
806K3AlF6potassium hexafluoroaluminate13775-52-5
807K3PO4potassium phosphate7778-53-2
808K4P2O7potassium pyrophosphate7320-34-5
809KAlF4potassium tetrafluoroaluminate14484-69-6potassium tetrafluoroaluminateKAlF4White solid1422.9 g/cc> 600 °C2 g/L
810KAlO2potassium aluminate12003-63-3K2Al2O4196.157 g/molvery soluble
811KBF4potassium fluoroborate14075-53-7
812KBrpotassium bromide7758-02-3KBroctahedralSodium chloridewhite solid119.002 g/mol2.75 g/cc734 °C, 1007 K, 1353 °F1435 °C, 1708 K, 2615 °F10.41 D (gas)53.5 g/100 ml (0 °C) 102 g/100 mL (100 °C)Potassium fluoride Potassium chloride Potassium iodideLithium bromide Sodium bromide Rubidium bromide Caesium bromide
813KBrO3potassium bromate7758-01-2Potassium bromate(V) Bromic acid, potassium salt Bromated flourKBrO3white crystalline powder167.00 g/mol3.27 g/cc350 °C370 °C (decomposes)6.91 g/100 mL (20°C) 13.3 g/100 mL (40 °C)slightly soluble in alcohol insoluble in acetoneNon-flammable
814KC2H3O2potassium acetate127-08-2potassium saltCH3COOKwhite crystalline powder deliquescent98.15 g/mol1.57 g/cc292°C253 g/100 mL (20 °C) 492 g/100 mL (62 °C)soluble in methanol, ethanol, liquid ammonia insoluble in ether, acetone9.7 (0.1M solution)
815KC2H5Opotassium ethoxide917-58-8
816KC2HO4potassium binoxalate127-95-7
817KC3H5O2potassium propionate327-62-8
818KC3H5S2Opotassium xanthogenate140-89-6
819KC3H7NS2potassium dimethyldithiocarbamate128-03-0
820KC4H5O6potassium bitartrate868-14-4potassium hydrogen tartrate cream of tartar potassium acid tartrate monopotassium tartrateKC4H5O6white crystalline powder188.1771.05 g/cc (solid)
821KC7H5O2potassium benzoate582-25-2Benzoic acid, potassium saltC7H5KO2White solid160.2117 g/mol
822KCH3Opotassium methoxide865-33-8
823KCHF3O3Spotassium trifluoromethanesulfonate2927-26-4
824KCHO2potassium formate590-29-4CHKO2colorless crystals deliquescent84.12 g mol−11.908 g/cc167.5 °C, 441 K, 334 °FDecomposes32.8 g/100 mL (0 °C) 657 g/100 mL (80 °C)soluble in alcohol insoluble in ether
825KClpotassium chloride7447-40-7Sylvite Muriate of potashKClface centered cubicwhite crystalline solid74.551 g/mol1.984 g/cc770 °C1420 °C (sublimes)1.3374328.1 g/100 ml (0 °C) 34.4 g/100 ml (20 °C) 56.7 g/100 ml (100 °C)soluble in ether, glycerol, alkalies slightly soluble in alcoholPotassium fluoride Potassium bromide Potassium iodideLithium chloride Sodium chloride Rubidium chloride Caesium chlorideNon-flammable
826KClO3potassium chlorate3811-04-9Potassium chlorate(V), PotcrateKClO3monoclinicWhite crystals or powder122.55 g/mol2.34 g/cc356 °C400 °C decomp.1.408357.19 g/100 ml (20 °C) 57 g/100 mL (100 °C)insoluble in acetone, liquid ammoniaPotassium bromate Potassium iodateAmmonium chlorate Sodium chlorate Barium chlorate400 °C
827KClO4potassium perchlorate7778-74-7Potassium chlorate(VII) Perchloric acid, potassium salt peroidinKClO4rhombohedralColourless/white crystalline powder138.55 g/mol2.5239 g/cc525 °C600 °C (decomp.)0.75 g/100 mL (0 °C) 1.5 g/100 mL (25 °C)[1] 21.8 g/100 mL (100 °C)negligible in alcohol insoluble in etherPotassium chloride Potassium chlorate Potassium periodateAmmonium perchlorate Sodium perchlorate
828KCNpotassium cyanide151-50-8KCNWhite crystalline solid deliquescent65.12 g/mol1.52 g/cc634.5 °C1625 ºC71.6 g/100 ml (25 °C) 100 g/100 mL (100 °C)−131.5 kJ/mol127.8 J K−1 mol−1Potassium cyanate Potassium thiocyanateSodium cyanideNon-flammable
829KCNOpotassium cyanate590-28-3KOCNwhite powder81.1151 g/mol2.056 g/cc315 °C~ 700°C, decomp.75 g/100 ml
830KFpotassium fluoride7789-23-3KFcolourless crystals58.0967 g/mol2.48 g/cc858 °C1505 °C92 g/100 mL (18 °C)soluble in HF insoluble in alcoholPotassium chloride Potassium bromide Potassium iodideLithium fluoride Sodium fluoride Rubidium fluoride Caesium fluorideNon-flammable
831KHpotassium hydride7693-26-7KHcubic, cF8colourless crystals40.1062 g/mol1.47 g/cc316 °CLithium hydride Sodium hydride Rubidium hydride Caesium hydride
832KH2PO4potassium diphosphate7778-77-0
833KH4Bpotassium borohydride13762-51-1
834KHCO3potassium bicarbonate298-14-6potassium acid carbonateKHCO3white crystals100.115 g/mol2.17 g/cc292 °C22.49 g/100 mL (20 °C) 60 g/100 mL (60 °C)practically insoluble in alcoholPotassium carbonateSodium bicarbonate Ammonium bicarbonateNon-Flammable8.2 (0.1M)
835KHSO4potassium bisulfate7646-93-7Potassium acid sulfateKHSO4136.169 g/mol2.245 g/cc197 °CDec. > 300 °C490 g/L
836KIpotassium iodide7681-11-0KIwhite crystalline solid166.0028 g/mol3.123 g/cc681 °C, 954 K, 1258 °F1330 °C, 1603 K, 2426 °F128 g/100 ml (6 °C) 140 g/100 mL (20 °C)2 g/100 mL (ethanol) soluble in acetone slightly soluble in ether, ammoniaPotassium fluoride Potassium chloride Potassium bromideLithium iodide Sodium iodide Rubidium iodide Caesium iodide
837KIO3potassium iodate7758-05-6Iodic acid, potassium saltKIO3white crystalline powder214.001 g/mol3.89 g/cc560 °C decomp.4.74 g/100 mL (0 °C) 32.3 g/100 mL (100 °C)soluble in KI solution insoluble in alcohol, liquid ammoniaPotassium chlorate Potassium bromateSodium iodateNon-flammable
838KIO4potassium periodate7790-21-8potassium metaperiodateIKO4white powder230 g mol−13.618 g/cc582 °C, 855 K, 1080 °F0.42 g/100 mL (20 °C) 4.4 g/100 mL (80 °C)Potassium iodide Potassium iodateSodium periodate
839KMnO4potassium permanganate7722-64-7Potassium permanganate Chameleon mineral Condy's crystals Permanganate of potashKMnO4Orthorhombicpurplish-bronze-gray needles magenta–rose in solution158.034 g/mol2.703 g/cc240 °C decomp.6.38 g/100 ml (20 °C) 25 g/100 mL (65 °C)decomposes in alcohol and organic solvents−813.4 kJ/mol171.7 J K−1 mol−1Potassium manganite Potassium manganateSodium permanganate Ammonium permanganate
840KN3potassium azide20762-60-1
841KNbO3potassium niobate12030-85-2
842KNO2potassium nitrite7758-09-0KNO2white or slight yellow solid deliquescent85.1038 g/mol1.915 c/cm3440 °C (decomp)281 g/100 mL (0 °C) 413 g/100 mL (100 °C)soluble in alcohol, ammoniaPotassium nitrateSodium nitriteNon-flammable
843KNO3potassium nitrate7757-79-1Saltpetre Nitrate of potash Vesta powderKNO3Orthorhombic, Aragonitewhite solidPhase behaviour Solid, liquid, gas101.103 g/mol2.109 g/cc (16 °C)334 °C400 °C decomp.UV, IR, NMR, MS13.3 g/100 mL (0 °C) 36 g/100 mL (25 °C) 247 g/100 mL (100 °C)slightly soluble in ethanol soluble in glycerol, ammoniaPotassium nitriteLithium nitrate Sodium nitrate Rubidium nitrate Caesium nitrateNon-flammable
844KO2potassium superoxide12030-88-5Potassium superoxideKO2yellow solid71.0971 g/mol2.14 g/cc, solid560 °C decomp.decomposesPotassium oxide Potassium peroxideSodium superoxide
845KOHpotassium hydroxide1310-58-3Caustic potash Potash lye Potassia Potassium hydrateKOHrhombohedralmonoclinicwhite solid, deliquescent56.1056 g/mol2.044 g/cc420 °C1327 °C1.409110 g/100 mL (25 °C) 178 g/100 mL (100 °C)soluble in alcohol, glycerol insoluble in ether, liquid ammoniaPotassium hydrosulfide Potassium amideLithium hydroxide Sodium hydroxide Rubidium hydroxide Caesium hydroxideNon-flammable13.5 (0.1 M)
846KPF6potassium hexafluorophosphate17084-13-8F6KPcolourless solid184.0625 g/mol2.75 g/cc575 °C0.432M (25 °C)
847KPO3potassium metaphosphate7790-53-6
848KReO4potassium perrhenate10466-65-6
849KrF2krypton difluoride13773-81-4krypton difluoride, krypton fluorideKrF2Body Centred Tetragonalcolourless solid[1]121.7968 g/mol3.24 g/cc solid[1]25 °C (decomposes)0 Dreactsslightly soluble in liquid fluorine
850KRuO4potassium perruthenate10378-50-4
851KSCNpotassium thiocyanate333-20-0potassium sulfocyanate potassium isothiocyanate potassium thiocyanideKSCNcolorless crystals deliquescent97.181 g/mol1.886 g/cc173.2 °C500 °C (decomp)177 g/100 mL (0 °C) 217 g/100 mL (20 °C)Potassium cyanate Potassium cyanideSodium thiocyanate Ammonium thiocyanate
852KVO3potassium metavanadate13769-43-2
853La(CHO2)3lanthanum formate2081-11-0
854La2O3lanthanum oxide1312-81-8Lanthanum sesquioxide LanthanaLa2O3Hexagonal, hP5White powder, hygroscopicPhase behaviour Solid, liquid, gas325.81 g/mol6.51 g/cc, solid2315°C (2590 K)4200°C (4500 K)4.3 eVUV, IR, NMR, MSInsolubleNon-flammable
855La2S3lanthanum sulfide12031-49-1
856LaAlO3lanthanum aluminate71496-78-1
857LaB6lanthanum boride12008-21-8Lanthanum borideLaB6Cubicintense purple violet203.78 g/mol4.72 g/cc2210 °Cinsoluble
858LaBr3lanthanum bromide13536-79-3
859LaC2lanthanum carbide12071-15-7LaC26Tetragonaltetrahedral crystals162.927 g/mol5.29 g/cc, solid2360°C
860LaCl3lanthanum chloride10099-58-8Lanthanum trichlorideLaCl3Tricapped trigonal prismatic (nine-coordinate)hexagonal (UCl3 type), hP8white odorless powder hygroscopic245.26 g/mol (anhydrous) 371.37 g/mol (heptahydrate)3.84 g/cc850°C (anhydrous) [1] 91 °C (heptahydrate)1000°C (anhydrous)very solublesoluble in ethanol (heptahydrate)
861LaCl3-3H2Olanthanum chloride trihydrate35564-84-2
862LaCl3-7H2Olanthanum chloride heptahydrate10025-84-0
863LaF3lanthanum fluoride13709-38-1
864LaH3lanthanum hydride13864-01-2
865LaI3lanthanum iodide13813-22-4