Iron(II) sulfide
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"FeS" redirects here. For other uses, see FES (disambiguation).
Iron(II) sulfide or ferrous sulfide (Br.E. sulphide) is one of a family of chemical compounds and minerals with the approximate formula FeS. Iron sulfides are often iron-deficient non-stoichiometric. All are black, water-insoluble solids.
Quick Facts Names, Identifiers ...
Names | |
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Other names
Iron sulfide, ferrous sulfide, black iron sulfide, protosulphuret of iron | |
Identifiers | |
3D model (JSmol) |
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ChemSpider |
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ECHA InfoCard | 100.013.881 |
PubChem CID |
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UNII | |
CompTox Dashboard (EPA) |
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Properties | |
FeS | |
Molar mass | 87.910 g/mol |
Appearance | Grey, sometimes in lumps or powder |
Density | 4.84 g/cm3 |
Melting point | 1,194 °C (2,181 °F; 1,467 K) |
negligible (insoluble) | |
Solubility | reacts in acid |
+1074·10−6 cm3/mol | |
Hazards | |
Occupational safety and health (OHS/OSH): | |
Main hazards |
Source of hydrogen sulfide, can be pyrophoric |
NFPA 704 (fire diamond) | |
variable | |
Related compounds | |
Other anions |
Iron(II) oxide Iron(II) selenide Iron(II) telluride |
Other cations |
Manganese(II) sulfide Cobalt(II) sulfide |
Iron(III) 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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