08. A Redox Reaction   Previous PageNext Page
       Apparatus, Chemicals and Method


One clean tin lid - from a sweet tin for example
Heat proof mat


The quantities given are for one demonstration

2-3g of potassium permanganate (potassium manganate (VII)) in the form of fine crystals
About 1cm of glycerol (propane-1,2,3-triol)


The Demonstration

Put 2-3g potassium permanganate on a tin lid standing on a heat proof mat and make a well in the centre of the pile. Pour about 1 cm of glycerol into the well. After about 20 seconds, steam is given off and a bright pink flame is produced which burns for a few more seconds.

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