Journal :   Asian Journal of Research in Chemistry

Volume No. :   5

Issue No. :  10

Year :  2012

Pages :   1271-1277

ISSN Print :  0974-4169

ISSN Online :  0974-4150


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Kinetics and Mechanism of Lanthanum (III) Catalysed Oxidation of D-ribose by Cerium(IV) in Aqueous Acidic Medium



Address:   Manoj Kumar Ghosh* and Surendra K. Rajput
Department of Chemistry, Govt. Nagarjuna P.G. College of Science, Raipur, 492010 (C.G.), India
*Corresponding Author
DOI No:

ABSTRACT:
A kinetics investigation of catalysed oxidation of D-(+) ribose by cerium(IV) have been studied in acidic medium in the temperature range 308-333 K. The reaction has been found to be first order with respect to D-(+) ribose in the presence of La(III) catalysed. The rate follow first order kinetics in La(III) catalysed oxidation reaction. The effect of [HSO4-] has also been observed. The 1:2 stoichiometry is observed in the oxidation. From the effect of temperature on the rate of reaction , the Arrhenius equation and various activation parameters have been computed. A suitable mechanism has been proposed and a rate law explaining the experimental observations is derived.
KEYWORDS:
Kinetics, Catalysed, D-(+) ribose, Cerium (IV) and Lathanum(III).
Cite:
Manoj Kumar Ghosh, Surendra K. Rajput. Kinetics and Mechanism of Lanthanum (III) Catalysed Oxidation of D-ribose by Cerium(IV) in Aqueous Acidic Medium. Asian J. Research Chem. 5(10): October, 2012; Page 1271-1277.
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