A kinetic study of D-glucose oxidation by bromine in aqueous solutions
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2006
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The kinetics of the oxidation Of D-glucose to D-gluconic acid by bromine in aqueous solution were studied using potentiometric techniques and theoretical considerations of complex bromine-bromide-pH equilibria. The pH has a strong influence on reaction rate. At pH lt 8 the reaction is very slow, while in the pH range pH 8-9.5 the reaction is sufficiently fast and seems optimal for the reaction. The proposed active species at that pH region is hypobromous acid. At pH gt 9.5, the reaction is further accelerated due to the formation of hypobromite. The proposed kinetics expression for gluconic acid formation, based on the determined kinetic parameters at pH 9.24, is of the form dc(GA)/dt = 160c(2)(G)c(0)(HOBr)c(0)(H+)c(0)(Br)
Ključne reči:
bromine / D-glucose / D-gluconic acid / hypobromous acid / oxidation / indirect electroorganic synthesisIzvor:
Carbohydrate Research, 2006, 341, 11, 1779-1787Izdavač:
- Elsevier Sci Ltd, Oxford
Finansiranje / projekti:
- Modifikacija metalnih i nemetalnih materijala elektroprovodnim polimerima za primenu u novim tehnologijama (RS-MESTD-MPN2006-2010-142044)
DOI: 10.1016/j.carres.2006.04.035
ISSN: 0008-6215
PubMed: 16696959
WoS: 000238797300001
Scopus: 2-s2.0-33744982871
Institucija/grupa
Tehnološko-metalurški fakultetTY - JOUR AU - Grgur, Branimir AU - Žugić, Dragana AU - Gvozdenović, Milica AU - Trišović, Tomislav PY - 2006 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/896 AB - The kinetics of the oxidation Of D-glucose to D-gluconic acid by bromine in aqueous solution were studied using potentiometric techniques and theoretical considerations of complex bromine-bromide-pH equilibria. The pH has a strong influence on reaction rate. At pH lt 8 the reaction is very slow, while in the pH range pH 8-9.5 the reaction is sufficiently fast and seems optimal for the reaction. The proposed active species at that pH region is hypobromous acid. At pH gt 9.5, the reaction is further accelerated due to the formation of hypobromite. The proposed kinetics expression for gluconic acid formation, based on the determined kinetic parameters at pH 9.24, is of the form dc(GA)/dt = 160c(2)(G)c(0)(HOBr)c(0)(H+)c(0)(Br) PB - Elsevier Sci Ltd, Oxford T2 - Carbohydrate Research T1 - A kinetic study of D-glucose oxidation by bromine in aqueous solutions EP - 1787 IS - 11 SP - 1779 VL - 341 DO - 10.1016/j.carres.2006.04.035 ER -
@article{ author = "Grgur, Branimir and Žugić, Dragana and Gvozdenović, Milica and Trišović, Tomislav", year = "2006", abstract = "The kinetics of the oxidation Of D-glucose to D-gluconic acid by bromine in aqueous solution were studied using potentiometric techniques and theoretical considerations of complex bromine-bromide-pH equilibria. The pH has a strong influence on reaction rate. At pH lt 8 the reaction is very slow, while in the pH range pH 8-9.5 the reaction is sufficiently fast and seems optimal for the reaction. The proposed active species at that pH region is hypobromous acid. At pH gt 9.5, the reaction is further accelerated due to the formation of hypobromite. The proposed kinetics expression for gluconic acid formation, based on the determined kinetic parameters at pH 9.24, is of the form dc(GA)/dt = 160c(2)(G)c(0)(HOBr)c(0)(H+)c(0)(Br)", publisher = "Elsevier Sci Ltd, Oxford", journal = "Carbohydrate Research", title = "A kinetic study of D-glucose oxidation by bromine in aqueous solutions", pages = "1787-1779", number = "11", volume = "341", doi = "10.1016/j.carres.2006.04.035" }
Grgur, B., Žugić, D., Gvozdenović, M.,& Trišović, T.. (2006). A kinetic study of D-glucose oxidation by bromine in aqueous solutions. in Carbohydrate Research Elsevier Sci Ltd, Oxford., 341(11), 1779-1787. https://doi.org/10.1016/j.carres.2006.04.035
Grgur B, Žugić D, Gvozdenović M, Trišović T. A kinetic study of D-glucose oxidation by bromine in aqueous solutions. in Carbohydrate Research. 2006;341(11):1779-1787. doi:10.1016/j.carres.2006.04.035 .
Grgur, Branimir, Žugić, Dragana, Gvozdenović, Milica, Trišović, Tomislav, "A kinetic study of D-glucose oxidation by bromine in aqueous solutions" in Carbohydrate Research, 341, no. 11 (2006):1779-1787, https://doi.org/10.1016/j.carres.2006.04.035 . .