Abstract
The oxidation of formaldehyde by cerium(IV) sulphate in aqueous sulphuric acid is an inner sphere reaction involving the intermediate Ce(SO 4) 2HCHO complex. The formation constant and disproportionation rate of this complex have been calculated at different temperatures. The reaction has a solvent isotope effect, k H 2O : k D 2O = 1·7. The rate is inversely proportional to (sulphuric acid), but it increases with sulphuric acid at constant (HSO 4 staggered− ). The activation paramters are reported.
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