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The reaction kinetics of oxidation of m-toluidine by periodate in the acetone-water medium in the presence of Mn II as catalyst was investigated systematically by detecting the change in absorbance of the intermediate of reaction. Results manifest that the reaction was first order with respect to both reactant and catalyst. It has been found that the reaction rate is not affected by free radical scavengers. However, the dielectric constant decreases in the medium decrease the reaction rate. Consequently, 1/kcat versus [H + ] plot was found to be in accordance with the rate law. The thermodynamic parameters were evaluated and the mechanism of the reaction has been proposed.

EVALUATION OF KINETIC PARAMETERS FOR MnII CATALYZED PERIODATE OXIDATION OF m-TOLUIDINE: A MECHANISTIC STUDY