Substrate inhibition: Oxidation of D-sorbitol and D-mannitol by potassium periodate in alkaline medium

In the oxidation of D-sorbitol and D-mannitol by potassium periodate in alkaline media, substrate inhibition was observed with both substrates, i.e., a decrease in the rate of the reaction was observed with an increase in the concentration of substrate. The substrate inhibition was attributed to the...

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Published inRussian Journal of Physical Chemistry A Vol. 88; no. 5; pp. 774 - 778
Main Authors Lakshman Kumar, Y., Venkata Nadh, R., Radhakrishnamurti, P. S.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.05.2014
Subjects
Chemical Kinetics and Catalysis
Chemistry
Chemistry and Materials Science
Physical Chemistry
potassium periodate
substrate inhibition
kinetics
alkaline medium
D-sorbitol
D-mannitol
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Summary:In the oxidation of D-sorbitol and D-mannitol by potassium periodate in alkaline media, substrate inhibition was observed with both substrates, i.e., a decrease in the rate of the reaction was observed with an increase in the concentration of substrate. The substrate inhibition was attributed to the formation of stable complex between the substrate and periodate. The reactions were found to be first order in case of periodate and a positive fractional order with hydroxide ions. Arrhenius parameters were calculated for the oxidation of sorbitol and mannitol by potassium periodate in alkali media.
ISSN:0036-0244
1531-863X
DOI:10.1134/S003602441405015X