Abstract
The kinetics of chromic acid oxidation of d-galactose, d-mannose, l-arabinose, and d-xylose have been studied in perchloric acid media. The reactions show first-order dependence on both chromium (VI) and aldose concentrations. The order with respect to hydrogen-ion concentration in each reaction is complex, and the hypotheses for the mechanism of acid catalysis have been tested. Different activation parameters have been evaluated. Aldoses are oxidized mainly to the aldonic acids when the aldose substrate is in excess. A tentative reaction mechanism has been suggested.
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