Pale yellow crystalline powder. The temperature of 160 ° c (decomposition), the relative density of 2. 28. Vacuum lost in the 142 ° c crystallization of water.

Potassium ferrioxalate, is a chemical compound with the formula K3[Fe(C2O4)3], where iron is in the +3 oxidation state. It is an octahedral transition metal complex in which three bidentate oxalate ions are bound to an iron centre.