Abstract
Abstract: The kinetic and mechanistic pathways of pyridine oxidation by peroxomonophosphate has been studied in an acidic aqueous medium. Reactions of peroxomonophosphoric acid are the least exploited kinetically. This reaction has been attempted to understand the role of oxidation of pyridine and the reactivity pattern of peroxomonophosphate. The reaction has been second-order or first-order concerning the oxidant and substrate, respectively. The reaction rate showed a decreasing effect with increasing hydrogen ion concentration. Considering peroxomonophosphate reactions as non-chain reactions and all the results, a feasible mechanism for the reaction has been suggested. The calculated energy of activation and entropy of activation has been observed conventionally to be 80 ± 5 kJ mol-1 and – 45 ± 6 JK-1 mol-1 . The oxidation product was pyridine-N-oxide in this reaction.
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