Lead(II) sulfide
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"PbS" redirects here. For other uses, see PBS (disambiguation).
Lead(II) sulfide (also spelled sulphide) is an inorganic compound with the formula PbS. Galena is the principal ore and the most important compound of lead. It is a semiconducting material with niche uses.
Quick Facts Names, Identifiers ...
Names | |
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Other names
Plumbous sulfide Galena, Sulphuret of lead | |
Identifiers | |
3D model (JSmol) |
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ChemSpider |
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ECHA InfoCard | 100.013.861 |
EC Number |
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PubChem CID |
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RTECS number |
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UNII | |
UN number | 3077 |
CompTox Dashboard (EPA) |
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Properties | |
PbS | |
Molar mass | 239.30 g/mol |
Appearance | Black |
Density | 7.60 g/cm3[1] |
Melting point | 1,113[1] °C (2,035 °F; 1,386 K) |
Boiling point | 1,281 °C (2,338 °F; 1,554 K) |
2.6×10−11 kg/kg (calculated, at pH=7)[2] 8.6×10−7 kg/kg[3] | |
−83.6·10−6 cm3/mol[4] | |
Refractive index (nD) |
3.91[5] |
Structure[6] | |
Halite (cubic), cF8 | |
Fm3m, No. 225 | |
a = 5.936 Å | |
Formula units (Z) |
4 |
Octahedral (Pb2+) Octahedral (S2−) | |
3.59 D[7] | |
Thermochemistry[8] | |
Heat capacity (C) |
49.5 J/mol⋅K |
Std molar entropy (S⦵298) |
91.2 J/mol |
Std enthalpy of formation (ΔfH⦵298) |
−100.4 kJ/mol |
Gibbs free energy (ΔfG⦵) |
−98.7 kJ/mol |
Hazards | |
GHS labelling: | |
Danger | |
H302, H332, H360, H373, H410 | |
P201, P202, P260, P261, P264, P270, P271, P273, P281, P301+P312, P304+P312, P304+P340, P308+P313, P312, P314, P330, P391, P405, P501 | |
NFPA 704 (fire diamond) | |
Flash point | Non-flammable |
Safety data sheet (SDS) | External MSDS |
Related compounds | |
Other anions |
Lead(II) oxide Lead selenide Lead telluride |
Other cations |
Carbon monosulfide Silicon monosulfide Germanium(II) sulfide Tin(II) sulfide |
Related compounds |
Thallium sulfide Lead(IV) sulfide Bismuth sulfide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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