Autocatalysis experiment

Autocatalysis experiment

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Credit: JERRY MASON/SCIENCE PHOTO LIBRARY

Caption: Autocatalysis. Demonstration of autocatalysis using ethanedioate and manganate(VII) ions. Autocatalysis occurs when reaction products catalyse the reaction itself. In this case, a solution of potassium permanganate (purple) is added to a solution of ethanedioic acid (oxalic acid, colourless). One of the products, the manganese(II) ion, further catalyses the reaction, liberating large quantities of carbon dioxide and carbon monoxide gases.

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Keywords: autocatalysis, catalysis, catalyst, chemical, chemistry, ethanedioate, ethanedioic acid, experiment, gas, manganate vii ions, oxalic acid, potassium permanganate, reaction

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