n. A black to brown sulfide of iron, FeS, used in making hydrogen sulfide and in ceramics.
ferrous sulfide
ferrous sulfide
[′fer·əs ′səl‚fīd] (inorganic chemistry) FeS Black crystals, insoluble in water, soluble in acids, melting point 1195°C; used to generate hydrogen sulfide in ceramics manufacture. Also known as iron sulfide.