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- W2116920643 abstract "Kinetics of the oxidation D-glucose, D-fructose, D-mannose and L-sorbose by manganese (III) have been studied in the presence of sulphate ions in acidic medium at 32 °C . The reaction has been followed s pectrophotome trically at Ama. = 500nm. A fir st order dependence of the rate on both Mn (III) and th e hexose concentrati ons is observed. The rat e is ind ependent of th e concentration o f reducti on product Mn (II) and hydrogen ions. Effects o f varying di electri c constant of the medium and add iti on of anions such as sulphate, flouride, chloride and perchlorate have been investi gated. Activation parameters ha ve also been evalu ated using Arrheniu s and Eyring plots. A mechanism in vo lvi ng th e formation of enediol from hexoses which re ac ts with Mn (III) in th e rate limitin g step is suggested. There has been a great dea l of attention focussed on th e oxidation of organic sub sta nces by high valent metal ion s. Of these, mang anese (III) oxidations are of special importance due to their biological" @default.
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- W2116920643 date "1999-09-01" @default.
- W2116920643 modified "2023-09-25" @default.
- W2116920643 title "Anodically generated manganese (III) sulphate for the oxidation of aldo and keto hexoses: A kinetic and mechanistic study" @default.
- W2116920643 hasPublicationYear "1999" @default.
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