Photo by C Lloyd at SSERC (Public Domain)

A classic demonstration (from the RSC) of a redox reaction and an exothermic one.

A small pile of finely ground potassium VII manganate has a depression made in the centre where some propan-1,2,3-triol (glygerol) is put.

After a delay, smoke appears and the mixture catches fire with a spectacular pink flame.

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