The title reaction was investigated in aqueous alkaline medium. A first-order dependence in hexacyanoferrate(III) concentration and a fractional order in both vanillin and alkali were obtained at the concentrations studied. The added product, hexacyanoferrate(II), had a retarding effect on the rate of reaction. Ionic strength and dielectric constant of the reaction medium have little effect on the reaction rate. The effect of temperature on the rate of reaction has also been studied and activation parameters have been evaluated. A mechanism based on the experimental results is proposed and the rate law is derived. The reaction constants are calculated and used to regenerate the kobs values, which are compared with the experimental values.
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Jose, T.P., Nandibewoor, S.T. & Tuwar, S.M. Kinetics and Mechanism of the Oxidation of Vanillin by Hexacyanoferrate(III) in Aqueous Alkaline Medium. J Solution Chem 35, 51–62 (2006). https://doi.org/10.1007/s10953-006-8938-z
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DOI: https://doi.org/10.1007/s10953-006-8938-z