Explain the preparation of Potassium pemanganate ?
Asked by Abhijith C | 11th Nov, 2012, 05:29: AM
When manganese dioxide is fused with potassium hydroxide in the presence of air or an oxidising agent such as potassium nitrate or chlorate, potassium manganate is formed, possibly via potassium manganite.
MnO2 + 2KOH ? K2MnO3 + 4H2O] × 2
2K2MnO3 + O2 ? 2K2MnO4 + 2H2O
2MnO2 + 4KOH + O2 ? 2K2MnO4 + 2H2O
pyrolusite potassium manganate
Answered by | 12th Nov, 2012, 01:26: PM
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