Kinetics and Mechanism of Ruthenium (III) Chloride Catalyzed Oxidation of Sulfanilic Acid by Thallium (III) in Acid Perchlorate Medium

Author(s): Sailani R, Pareek D, Meena A, Sharma P and Khandelwal CL

The kinetics and mechanism of oxidation of sulfanilic acid by thallium (III) in acid perchlorate medium have been studied. The reaction exhibits first order with respect to oxidant whereas order with respect to sulfanilic acid is complex. The rate is retarded by hydrogen ion concentration. Accounting for all such observations, a plausible reaction mechanism has been suggested. The activation parameters such as energy and entropy of activation have also been calculated to be (37.61 ± 0.3) kJ mol-1 and (-157.9 ± 1.6) JK-1 mol-1 respectively employing Eyring equation.

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