Originally posted by madscientist
KMnO4 oxidizes H2O2 readily, causing both to decompose... I have tried adding two or three grains of KMnO4 to a test tube 1/4 of the way filled with
27.5% H2O2, and the result was a violent, hot, oxygen gas / steam forming reaction. All that was left was some very hot water, and Mn3O4 (I believe
that's what the dark brown precipitate was).
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