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The kinetics of oxidation of 8-hydroxyquinoline (oxine) by pyridinium dichromate has been studied in 60% acetic acid-water (v/v) medium. The reaction order is one with respect to oxidant, second with respect to the substrate and zero with respect to hydrogen ion concentration. Decrease of the dielectric constant of the medium, reduces the rate of the reaction. Increase in ionic strength has no effect on the reaction rate. The reaction does not induce the polymerization of acrylonitrile. From the kinetic data obtained, the activation parameters have been calculated and a plausible mechanism has been proposed.
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122--126
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Bibliogr. 9 poz., tab., wykr.
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Bibliografia
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bwmeta1.element.baztech-article-BAR2-0001-0014