Kinetics and Mechanism of the Reduction of Chromium (VI) and Chromium (V) by D??Glucitol and D??Mannitol

…, B Goodman, MI Santoro, JC González…

Index: Roldan, Viviana P.; Daier, Veronica A.; Goodman, Bernard; Santoro, Mabel I.; Gonzalez, Juan Carlos; Calisto, Nancy; Signorella, Sandra R.; Sala, Luis F. Helvetica Chimica Acta, 2000 , vol. 83, # 12 p. 3211 - 3228

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Citation Number: 21

Abstract

Abstract The oxidation of D-glucitol and D-mannitol by Cr VI yields the aldonic acid (and/or the aldonolactone) and Cr III as final products when an excess of alditol over Cr VI is used. The redox reaction occurs through a Cr VI [RIGHTWARDS ARROW] Cr V [RIGHTWARDS ARROW] Cr III path, the Cr VI [RIGHTWARDS ARROW] Cr V reduction being the slow redox step. The complete rate laws for the redox reactions are expressed by: a)− d [Cr VI]/dt {k ...