Interaction | Reaction | Process Data Page
A solution of oxalate ion (ethanedioate ion) is oxidised by permanganate, manganate(VII), to carbon dioxide which effervesces.Both of the reacting ions are both anions and they repel each other and the reaction starts very slowly. However, reaction is "autocatalysed" by one of the products, Mn2+, which switches between the Mn(II) and Mn(III) states.The Mn3+ is made in situ by the oxidation of Mn2+ to Mn2+ by manganate(VII), permanganate ion.
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