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Potassium ferrocyanide is the inorganic compound with formula K4[Fe(CN)6]·3H2O.
P 2235 (OTTO) Potassium ferrocyanide, 99% Cas no 14459-95-1 - used in the purification of tin and the separation of copper from molybdenum ores. Potassium ferrocyanide is used in the production of wine and citric acid.