2017
DOI: 10.14233/ajchem.2018.20973
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Kinetics and Mechanism of Oxidation of Diclofenac Sodium by Keggin Type 12-Tungstocobalt(III) in Aqueous Medium

Abstract: The kinetics of electron transfer reaction of diclofenac sodium with 12-tungstocobaltate (III) complex has been studied spectrophotometrically over the range 2.0 × 10 -3 ≤ [diclofenac sodium] ≤ 6.0 × 10 -3 mol/L, 6.03 ≤ pH ≤ 8.0 and at 293 ≤ T ≤ 308 K in aqueous medium at constant ionic strength I (0.5 mol/L sodium perchlorate). The electron transfer reaction showed pseudo-first order dependence in [diclofenac sodium] and [12-tungstocobaltate(III)] and less than unit order in [OH -]T. The activation parameters… Show more

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