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Kinetics and mechanism of oxidation of syringic acid and 4-methoxycinnamic acid by dichromate in presence and absence of succinic acid

Authors: A. S. Kulkarni; B. K. Bongan; P. G. Gavali; (Mrs.) N. T. Patel;

Kinetics and mechanism of oxidation of syringic acid and 4-methoxycinnamic acid by dichromate in presence and absence of succinic acid

Abstract

Department of Chemistry and Physics, B. S. College, Basmath-431 512, Dist. Hingoli, Maharashtra, India E-mail : as_kulkarni123@rediffmail.com Department of Chemistry, Yeshwant College, Nanded-431 602, Maharashtra, India Manuscript received 27 January 2011, accepted 09 January 2012 The effect of varying concentration of [substrate], [oxidant], [H+], added neutral salt have been studied. It has been found that, the order of reaction with respect to [oxidant] and [substrate] found to be unity from the slope of plots log k vs log [sub]. The rate of reaction increases with decrease in pH of perchloric acid. Hammett's acidity function and activity of water have been studied. Effect of temperature has been studied. Activation parameters were computed. The plot of ΔH* vs ΔS* is linear. The effect of dielectric constant of the medium indicates the reaction to be + ve ion-dipole. The result of oxidation products have been identified.

Keywords

Kinetics, syringic acid, succinic acid, 4-methoxycinnamic acid, Hammett acidity function

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This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
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