Collect. Czech. Chem. Commun.
1980, 45, 1173-1181
https://doi.org/10.1135/cccc19801173
Kinetics and mechanism of the redox reaction of thallic sulphate with acroleine
Ľudovít Treindl and Milan Melicherčík
Department of Physical Chemistry, Comenius University, 816 50 Bratislava
Abstract
The stoichiometry, kinetics and mechanism of the redox reaction of thallic sulphate with acroleine in aqueous sulphuric acid or in aqueous dioxane solutions were studied. The acroleine molecule is oxidised with Tl(III) ions in two consecutive one-electron steps to glyceraldehyde. The corresponding rate equation is -d[Tl(III)]/dt = k[Tl(III)]n [A], where n = 0-2. The zeroth reaction order with respect to thallic ions is attributed to a slow enolization of the hydrated acroleine, which is the rate-determining step preceding the redox reaction proper.
