5Ti2(SO4)3 + 2KMnO4 + 12H2O → 10Ti(OH)2SO4 + 2MnSO4 + K2SO4 + 2H2SO4
Titanium(III) sulfate react with potassium permanganate and water to produce titanium sulphate-dihydroxide, manganese(II) sulfate, potassium sulfate and sulfuric acid. The reaction takes place in a diluted solution sulfuric acid.