ISSN print edition: 0366-6352
ISSN electronic edition: 1336-9075
Registr. No.: MK SR 9/7

Published monthly
 

Kinetic study of oxidation of glyceraldehyde by the cerium(IV) ions

M. Melicherčík and Ľ. Treindl

Department of Chemistry, Faculty of Pedagogy, CS-97549 Banská Bystrica

 

Abstract:

The kinetics and mechanism of oxidation of glyceraldehyde by cerium(IV) sulfate in a solution of sulfuric acid were studied. The reaction is a first-order reaction with respect to concentration of the Ce(IV) ions as well as with respect to concentration of the substrate. The value of experi­mental rate constant nonlinearly decreases with increasing concentration of the HS04- ions. It also decreases after addition of the Ce(III) ions. The activation enthalpy (ΔH = 78.1 kJ mol-1 ) and the activation entropy (ΔS = - ЗЗ J К-1mol-1 ) were evaluated from the temperature depen­dence of the rate constant by using the Eyring equation. The probable reaction mechanism is discussed. It is assumed that the reaction proceeds through an intermediary complex the intramolecular decay of which is the rate-determining step. In the subsequent step the intermediary radical is attached by another Ce(IV) ion.

Full paper in Portable Document Format: 424a433.pdf

 

Chemical Papers 42 (4) 433–438 (1988)

Saturday, January 29, 2022

IMPACT FACTOR 2020
2.097
SCImago Journal Rank 2020
0.344
SEARCH
Advanced
VOLUMES
XXVIII. International Conference on Coordination and Bioinorganic Chemistry
© 2022 Chemical Papers