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A kinetic study of D-glucose oxidation by bromine in aqueous solutions
- Source :
- Carbohydrate Research
- Publication Year :
- 2006
- Publisher :
- Oxford : Elsevier Sci Ltd., 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)
- Subjects :
- Time Factors
oxidation
bromine
Potentiometric titration
Kinetics
Inorganic chemistry
chemistry.chemical_element
02 engineering and technology
010402 general chemistry
Gluconates
01 natural sciences
Biochemistry
Analytical Chemistry
Reaction rate
chemistry.chemical_compound
Hypobromous acid
indirect electroorganic synthesis
Aqueous solution
Bromine
Bromates
Organic Chemistry
Water
General Medicine
Hydrogen-Ion Concentration
021001 nanoscience & nanotechnology
0104 chemical sciences
Glucose
Models, Chemical
chemistry
hypobromous acid
Gluconic acid
D-gluconic acid
0210 nano-technology
Hypobromite
Oxidation-Reduction
D-glucose
Subjects
Details
- Database :
- OpenAIRE
- Journal :
- Carbohydrate Research
- Accession number :
- edsair.doi.dedup.....a5bd8814f24d2e4f6b8a9ac53dad43ec