6 KMn(VII)O4 + 10 FeIIS(IV)O3 + 14 H2S(VI)O4 → 5 Fe2(III)(S(VI)O4)3 + 6 Mn(II)S(VI)O4 + 3 K2S(VI)O4 + 14 H2O
6 KMn(VII)O4 + 10 FeIIS(IV)O3 + 14 H2S(VI)O4 → 5 Fe2(III)(S(VI)O4)3 + 6 Mn(II)S(VI)O4 + 3 K2S(VI)O4 + 14 H2O