Collect. Czech. Chem. Commun.
1990, 55, 2944-2948
https://doi.org/10.1135/cccc19902944
Kinetic investigation of the oxidation of bromide ions by cobalt(III). Reaction in the presence of p-toluic acid
Júlia Schlosserová, Milan Hronec and Václav Veselý
Faculty of Chemistry, Slovak Technical University, 812 37 Bratislava
Abstract
The rate of Co(III) reduction under inert atmosphere in the presence of p-toluic acid (PTA) and hydrobromide obeys the rate law d[Co(III)]/dt = k[Co(III)]2 [Co(II)]-1 [PTA] [HBr]. The proposed reaction mechanism involves the reduction of Co(III) by Br- ions and formation of a cation-radical from p-toluic acid. p-Xylene is attacked by bromine species and not directly by Co(III). The rate constants of Co(III) and Br- consumption as well as apparent activation energies were estimated.
