Question

Describe preparation of KMnO4 from pyrolusite.

Answer 1

Potassium permanganate can be prepared from pyrolusite (MnO2). The ore is fused with KOH in the presence of either atmospheric oxygen or an oxidising agent, such as KNO3 or KClO4, to give K2MnO4.

Answer 2

Describe the preparation of potassium permanganate. ... Potassium permanganate can be prepared frompyrolusite (MnO2). The ore is fused with KOH in the presence of either atmospheric oxygen or an oxidising agent, such as KNO3or KClO4, to give K2MnO4.