Collect. Czech. Chem. Commun. 1980, 45, 3287-3292

Kinetics and mechanism of oxidation of V(II) ions with trichloroacetic acid

Ľubica Adamčíková

Department of Physical Chemistry, Comenius University, 816 50 Bratislava


The kinetics and mechanism of the redox reaction of V(II) ions with trichloroacetic acid were studied in the medium of 0.04-2.0M-HClO. The results of kinetic measurements were compared with the analogous oxidation of U(III) ions with trichloroacetic acid, and the exchange rate constant for the reaction U3+ + *U4+ → U4+ + *U3+ was calculated. The influence of binary mixtures on the kinetic parameters of the reaction and the application of the Marcus' equation show that the oxidation of V2+ions with trichloroacetic acid proceeds by an outer-sphere mechanism.