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KMID : 1059520120560020212
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Journal of the Korean Chemical Society
2012 Volume.56 No. 2 p.212 ~ p.216
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The Kinetics and Mechanism for the Oxidation of Nicotinic Acid by Peroxomonosulfate in Acidic Aqueous Medium
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Agrawal Anju
Sailani Riya
Gupta Beena
Khandelwal C. L.
Sharma P. D.
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Abstract
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The kinetics of oxidation of nicotinic acid by peroxomonosulfate (PMS) has been studied in acetate buffers. Stoichiometry of the reaction corresponds to the reaction of one mole of the oxidant with a mole of nicotinic acid. N→O product has been confirmed both by UV visible and IR spectroscopy. The reaction is second order viz. first order with respect to each reactant. Activation parameters have also been evaluated. A plausible reaction mechanism is mentioned and the derived kinetic rate law accounts for experimental observations.
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KEYWORD
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Kinetics, Mechanism, Oxidation, Nicotinic acid, Peroxomonosulfate
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