Kinetics and mechanism of oxidation of sugars by chromium (vi) in perchloric acid medium
| dc.contributor.author | Odebunmi, E.O. | |
| dc.date.accessioned | 2019-10-30T11:54:25Z | |
| dc.date.available | 2019-10-30T11:54:25Z | |
| dc.date.issued | 2005-05-03 | |
| dc.description.abstract | Kinetic data for the oxidation of D-glucose, fructose, maltose and sucrose by chromium (VI) in perchloric acid medium are reported The results of the reactions studied spectrophotometrically over a wide range of experimental conditions show that the rateĀ· of the reaction is enhanced by increase in pH, ionic strength and concentrations of the sugars. The reactions are first-order with respect to both the sugars and Cr(VI) white the order with respect to [H] is complex. The order of reactivities of the sugars is fructose > maltose> glucose> sucrose. Formation of free radical intermediate complex was demonstrated and the kinetic results indicate the formation of a 1:1 intermediate complex between Cr(VI) and the sugars. The activation parameters have been evaluated and lend further support to the proposed mechanism. | en_US |
| dc.identifier.uri | http://hdl.handle.net/123456789/3171 | |
| dc.language.iso | en | en_US |
| dc.publisher | Chemical Society of Nigeria | en_US |
| dc.subject | Sugars | en_US |
| dc.subject | oxidation | en_US |
| dc.subject | kinetics | en_US |
| dc.subject | mechanism | en_US |
| dc.title | Kinetics and mechanism of oxidation of sugars by chromium (vi) in perchloric acid medium | en_US |
| dc.type | Article | en_US |