Ferric potassium Oxalate is a derivative of Oxalic Acid. Ferric potassium Oxalate is freely soluble in water. Ferric potassium Oxalate is a Greenish crystalline powder. It should be stored in tightly closed containers in a Room Temperature. CAUTION THE PRODUCT IS LIGHT SENSITIVE. Ferric potassium Oxalate is used in Metal Treatment Industry.