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The oxidation of 2-(2-methoxyethoxy)-ethanol and 2-(2-ethoxyethoxy)-ethanol by dihydroxydiperiodato nickelate(IV): A kinetic and mechanistic study
Jinhuan Shan (1,*)
, Ziwei Zhang (2) (1) College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China
(2) College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China
(*) Corresponding Author
Received: 22 Nov 2013 | Revised: 02 Jan 2014 | Accepted: 04 Jan 2014 | Published: 30 Jun 2014 | Issue Date: June 2014
Abstract
The kinetics of oxidation of 2-(2-methoxyethoxy)-ethanol and 2-(2-ethoxyethoxy)-ethanol by dihydroxydiperiodato nickelate(IV) (DPN) had been studied spectrophotometrically in alkaline medium in the temperature range of 293.2 to 313.2 K. The reaction rate showed first order dependence on DPN, 2-(2-methoxyethoxy)-ethanol and 2-(2-ethoxyethoxy)-ethanol. It was found that the pseudo-first-order rate constant kobs increased with an increase in concentration of OH- and a decrease in concentration of IO4-. There was a positive salt effect and no free radicals were detected. A plausible mechanism is proposed and the rate equations derived from the mechanism can explain all the experimental observations.
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DOI: 10.5155/eurjchem.5.2.237-240.981
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College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China
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DOI Link: https://doi.org/10.5155/eurjchem.5.2.237-240.981
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European Journal of Chemistry 2014, 5(2), 237-240 | doi: https://doi.org/10.5155/eurjchem.5.2.237-240.981 | Get rights and content
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