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The kinetics of uncatalysed and catalysed oxidation of D-ribose by Cerium(IV) has been studied in acidic medium in the temperature range 303-338 K. The reaction has been found to be first order with respect to [D-ribose] in both uncatalysed and catalysed reactions. The rates follow first order kinetics in [Ir(III)] catalysed oxidation reaction. The effect of [HSO4- ] has also been observed. The increase in ionic strength of the medium decreases the rate of uncatalysed reaction while increases catalysed reaction. A 1:2 stoichiometry is observed in the oxidation. From the effect of temperature…mehr

Produktbeschreibung
The kinetics of uncatalysed and catalysed oxidation of D-ribose by Cerium(IV) has been studied in acidic medium in the temperature range 303-338 K. The reaction has been found to be first order with respect to [D-ribose] in both uncatalysed and catalysed reactions. The rates follow first order kinetics in [Ir(III)] catalysed oxidation reaction. The effect of [HSO4- ] has also been observed. The increase in ionic strength of the medium decreases the rate of uncatalysed reaction while increases catalysed reaction. A 1:2 stoichiometry is observed in the oxidation. From the effect of temperature on the reaction rate, the Arrhenius and activation parameters have been calculated. A suitable mechanism has been proposed and a rate law explaining the experimental results is derived.
Autorenporträt
La profesora Sonal Choubey tiene una amplia experiencia docente. Su área de investigación incluye la cinética de la oxidación de los carbohidratos, el tratamiento del agua potable, el tratamiento de las aguas residuales y la química medioambiental.