49.9 MB (4.6 MB compressed)
5157 x 3381 pixels
43.7 x 28.7 cm ⏐ 17.2 x 11.3 in (300dpi)
TURTLE ROCK SCIENTIFIC / SCIENCE SOURCE / SCIENCE PHOTO LIBRARY TURTLE ROCK SCIENTIFIC / SCIENCE SOURCE / SCIENCE PHOTO LIBRARY
Oxidation of glycerine by potassium permanganate, 1 of 3. A couple of drops of glycerine (C3H8O3) are placed onto a pile of potassium permanganate (KMnO4). The exothermic reaction takes a few seconds to start. As glycerine heats up, the reaction speeds up, white smoke appears and glycerine bursts into flames. The redox reaction is: KMnO4 + C3H8O3 -> K2CO3 + Mn2O3 + CO2 + H2O.
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