Users' questions

What happens when potassium permanganate reacts with sulfuric acid?

What happens when potassium permanganate reacts with sulfuric acid?

Potassium permanganate react with sulfuric acid to produce manganese(II) sulfate, potassium sulfate, oxygen and water.

Does potassium permanganate react with methanol?

The quantitative oxidation of methanol and ethanol by acidified potassium permanganate solution has been studied. Molybdate is superior to manganese(II) as the catalyst. In fairly dilute methanol solutions a large excess of permanganate oxidises the alcohol quantitatively to carbon dioxide.

Is KMnO4 explosive?

Crystals of potassium permanganate explode vigorously when ground with phosphorus. Fire Protection Guide to Hazardous Materials.

Can you pour potassium permanganate down the drain?

Ideally, larger amounts of potassium permanganate should be collected bad brought to your local hazardous waste facility (it is a strong oxidizing agent, and should be disposed of properly). However, small amounts can be flushed down the drain/toilet with copious amounts of water.

Why is dilute sulfuric acid suitable for permanganate titration?

Ans: For HCl, the chloride ion will be oxidised to chlorine gas by manganate (VII) ion. Lastly, permanganate cannot oxidize sulfate ion and sulfuric acid is not an oxidizing agent. Therefore, sulfuric acid is the mineral acid of choice for manganate (VII) titrations.

Why does the colour of potassium permanganate not disappear when excess is added?

Initially colour disappears because colouredpermanganate ions of potassium permanganate are consumed to oxidiseethanol. When excess is added colour does not change because there is nomore alcohol left and hence there is noreaction.

Why is potassium permanganate purple in Colour?

The colour of KMnO4 is due to transitions of charge transfer by the absorption of visible light. Metal ions possess the electron in KMnO4 and thus the transition of charge takes place from O to Mn+.