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Potassium Permanganate Colour Change

Potassium Permanganate Colour Change - part of our "Berzelius Day" uploading 24 videos in 24 hours. Full video containing this reaction at: FROM THE PROFESSOR: The colour change is caused by the purple permanaganate ions [MnO4]- gaining electrons to form colourless Mn(+2) ions. The oxygen from the permanganate and the H2O2 are converted to H2O and O2 (which bubbles off). The extra H atoms come from the sulphuric acid H2SO4. Both the K and Mn end up as sulfates.See our 24 reactions playlist as it unfolds at: Day explained: chemistry at us on Facebook at on Twitter at the School of Chemistry at The University of Nottingham: Videos films are by video journalist Brady Haran
Length: 00:36


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