Citation
Ks. Rangappa et al., Oxidation of uronic acids by manganese(III) sulfate in acid solution: A kinetic and mechanistic study, SYN REAC IN, 31(5), 2001, pp. 713-723
Citations number
25
Categorie Soggetti
Inorganic & Nuclear Chemistry
Journal title
SYNTHESIS AND REACTIVITY IN INORGANIC AND METAL-ORGANIC CHEMISTRY
ISSN journal
00945714
→ ACNP
Volume
31
Issue
5
Year of publication
2001
Pages
713 - 723
Database
ISI
SICI code
0094-5714(200105)31:5<713:OOUABM>2.0.ZU;2-U
Abstract
The kinetics and mechanism of oxidation of D-glucuronic acid and D-galactur
onic acid by manganese(III) sulfate, in aqueous sulfuric acid solution at 3
0 degreesC, was followed spectrophotometrically at lambda (max) = 500 nm. A
first-order dependence of the rate each on [Mn(III)] and [uronic acid] was
observed. The rate is independent of the concentration of hydrogen ions an
d the reaction product, Mn(II). Effects of varying the dielectric constant
of the medium and the addition of anions such as Cl-, F-, SO42- and ClO4- h
ave been investigated. Activation parameters have been evaluated using Arrh
enius