Solvent effect on the kinetics of oxidation of ferrocyanide by lodate in water-methanol mixtures

Summary The kinetics of oxidation of ferrocyanide by iodate ion in water-methanol solvent mixtures have been studied spectro-photometrically in the range 0.0 to 54wt% methanol, at five different temperatures ranging from 10 °C to 30 °C. The rate of reaction is increased with increasing of the methanol content in the mixture. Thermodynamic activation parameters have been calculated. An appropriate mechanism, consistent with the kinetic results, is suggested.