Add time:08/13/2019         Source:sciencedirect.com

A 18O labelling technique has been used to demonstrate reversible exchange of peroxide groups between H2O2 and the tetraperoxochromate(V) ion. The results also show that this exchange proceeds without scrambling of oxygen atoms, i.e. the intergrity of the exchanging peroxide group is conserved. The rate of exchange was proportional to [H+], in the pH range 7.87 to 11.80. The implications of these results on the mechanism of tetraperoxochromate decomposition are discussed.

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