Potassium dithioferrate
chemical compound
Potassium dithioferrate is the inorganic compound with the formula KFeS2. It is a purple solid that is insoluble in water. Regarding its chemical structure, the compound consists of infinite chains of edge-shared anionic FeS4 tetrahedra. Associated with these chains are potassium ions. A related family of one-dimensional materials exists with the formula MFe2S3 (M = K, Rb, Cs). These mixed-valence compounds are represented by the mineral rasvumite, KFe2S3.
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