potassium ferrocyanide

noun

Chemistry.

1. a lemon-yellow, crystalline, water-soluble solid, K 4 Fe(CN) 6 ⋅3H 2 O, used chiefly in casehardening alloys having an iron base and in dyeing wool and silk.

potassium ferrocyanide

noun

1. Also called: potassium hexacyanoferrate (II).  yellow prussiate of potash. a yellow soluble crystalline compound used in case-hardening steel and making dyes and pigments. Formula: K 4 Fe(CN) 6