Tags: Chemical Compound, Chemical Substance.
Potassium ferrioxalate also known as potassium trisoxalatoferrate(III) 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 center. Potassium acts as a counterion balancing the -3 charge of the complex. Crystals of the trihydrated form of the complex K3[Fe(C2O4)3]·3H2O are emerald green in color.