Chemistry Forum

KMnO₄ + K₂SO₃ in neutral ambience?

Depends on the ratio and concentration of reagents the reduction of KMnO₄ can go to MnO₂ or to K₂MnO₄
2 KMnO₄ + 3 K₂SO₃ + H₂O = 3 K₂SO₄ + 2 MnO₂ + 2 KOH
2 KMnO₄ + K₂SO₃ + H₂O = 2 K₂MnO₄ + H₂SO₄


pH will change (increase or decrease depends on the ratio), and without specific buffer you can't expect clear path and clean outcome.

thanks