A kinetic study of oxidation of 1,4‐dioxane by diperiodatonickelate(IV) in aqueous alkaline medium |
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Authors: | N. N. Halligudi S. M. Desai S. T. Nandibewoor |
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Abstract: | The kinetics of oxidation of 1,4‐Dioxane (Dio) by Diperiodatonickelate (IV) (DPN) in aqueous alkaline medium at a constant ionic strength of 1.5 mol dm−3 was studied spectrophotometrically. The reaction shows first‐order kinetics in [DPN] and less than unit order dependence each in [Dio] and [OH−]. Addition of products, Ni(II) and periodate have no significant effect on the reaction rate. An increase in ionic strength and decrease in dielectric constant of the medium increases the rate. A mechanism based on experimental results, involving two paths, one [Dio] dependent and the other [Dio] independent is proposed. The constants involved in the mechanism are evaluated. There is a good agreement between the observed and calculated rate constants at varying conditions of experiments. © 1999 John Wiley & Sons, Inc. Int J Chem Kinet 31: 789–796, 1999 |
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