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Paper Details

Kinetics of Oxidation of Oxine by Isoquinolinium Bromochromate

M.Vellaisamy* and M.Hinduja

Journal Title:Journal of Chemical, Biological and physical sciences

The kinetics of 8-hydroxy quinoline (oxine) by isoquinolinium bromochromate has been studied in 50% acetic acid-water (v/v) medium. The order of the reaction has been found to be one with respect to oxidant, second order with respect to substrate and zero order with respect to hydrogen ion concentration. Decreases in dielectric constant of the medium, increases the rate of the reaction.Increases in ionic strength has no effect on the reaction rate. The reaction does not induce the polymerization of acrylonitrile. Quinoline-5, 8-quinone has been identified as a product. From the kinetic data obtained, the activation parameters have been calculated and a possible mechanism has been proposed.