Kinetics and Mechanism of Iridium (III) Catalysed Oxidation of Glycols by Cerium (IV) in Aqueous Acidic Media

Kinetics and mechanism of iridium (III) catalysed oxidation of Glycols by cerium (IV) in aqueous sulphuric acid medium have been investigated at different temperatures [Glycols] >> Ce (IV) >> (IR) (10-5 mol/dm3) in 1 mol dm-3 sulphuric acid medium. The reactions are found to be the first order with respect to Ce (IV) ion and observed first order rate constant. From the [HSO4] dependence, Ce (IV)has been found kinetically active the proposed mechanism involves a pre-equilibrium interaction between the catalyst and substrate. The process is acid catalysed. Activation parameters have been determined to investigate the effect of temperature; and