Potassii Ferrocyanidum. Potassium Ferrocyanide. K4Fe(CN)6 + 3H2O = 421.76. Synonym.- Yellow Prussiate of Potash.

Potassium Ferrocyanide is used to prepare Acidum Hydrocyanicum Di-lutum, and Potassii Cyanidum; also as a test for iron, copper and zinc