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)
TY - 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 . .
