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Topic: who can explain the orange colour I see when KMnO4 gets reduced?  (Read 4491 times)

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Offline Chaste

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who can explain the orange colour I see when KMnO4 gets reduced?
« on: September 20, 2008, 11:26:40 AM »
In a lab experiment, I was told to mix methanol, KOH, KMnO4 together in a warm water bath.
I know I'm supposed to see a brown precipitate of MnO2 at the end of the reaction. But can anyone explain to me why did I see a orange solution or orange precipitate?

Thanks.

Offline n4k

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Re: who can explain the orange colour I see when KMnO4 gets reduced?
« Reply #1 on: September 21, 2008, 01:50:51 PM »
At oxidation the set of connections is formed

Probably, there was a dirty utensils, or not pure(clean) methanol, KOH and KMnO4
I like to synthesize various substances

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