Abstract

A. G. Jadhav, V.V. Gaikwad, K. W. Shaikh and N. T. Patel*

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

Glycols = 1,3- butanane glycol; 1,5-pentane glycol

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