5V2(SO4)3 + 2KMnO4 + 2H2O → 10VOSO4 + 2MnSO4 + K2SO4 + 2H2SO4
Vanadium(III) sulfate react with potassium permanganate and water to produce vanadyl sulfate, manganese(II) sulfate, potassium sulfate and sulfuric acid. The reaction takes place in a diluted solution sulfuric acid.