Iron(II) sulfide
Chemical compound
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Iron(II) sulfide or ferrous sulfide 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. Wikipedia
Formula: FeS
Molar mass: 87.91 g/mol
Solubility: reacts in acid
Appearance: Grey, sometimes in lumps or powder
Density: 4.84 g/cm3
Physical state: black solid
3D model (JSmol): Interactive image