Video: Permanganate ion as an oxidizing agent IV

Video: Permanganate ion as an oxidizing agent IV

Purple permanganate ion oxidizes sulfite ion in basic solution to sulfate ion, itself being reduced to the green manganate ion.

MnO₄^-(aq) + e^- ® MnO₄^2-(aq)
SO₃^2-(aq) + 2 OH^-(l) ® SO₄^2-(aq) + H₂O(l) + 2 e^-