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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/6215

Title: REDUCTION OF POTASSIUM CHROMATE BY D-FRUCTOSE, D-GALACTOSE, D-MANNOSE, D-GLUCOSE, AND L-SORBOSE
Authors: RAO, CP
KAIWAR, SP
Keywords: electron-paramagnetic-res
chromium(vi)
glutathione
equilibria
oxidation
cr(vi)
acid
Issue Date: 1993
Publisher: ELSEVIER SCI LTD
Citation: CARBOHYDRATE RESEARCH, 244(1), 15-25
Abstract: Chromate is readily reduced by various saccharides under different experimental conditions, and its reduction has been followed using absorption and EPR spectroscopies and electrochemistry. The reduction of Cr(VI) was found to be characteristic of the saccharide used and the reductive capabilities follow a trend, D-fructose > L-sorbose > D-galactose > D-mannose > D-glucose at pH 1.65 and D-fructose > D-galactose > D-mannose > L-sorbose > D-glucose at pH 0.35. Similar trends were noticed from EPR and electrochemistry studies. As the reduction of chromate was found to go via soluble, reactive, and relatively long-lived Cr(V) intermediates having different life times, the biological toxicity and ecological hazard created in the presence of Cr(VI) salts by various molecules containing such saccharide moieties is expected to follow a reverse trend.
URI: http://dx.doi.org/10.1016/0008-6215(93)80002-V
http://dspace.library.iitb.ac.in/xmlui/handle/10054/6215
http://hdl.handle.net/10054/6215
ISSN: 0008-6215
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