Kinetics and mechanism of formation of manganate(VI) and hypomanganate(V) coordination polymer intermediates during the base-catalyzed oxidation of carboxymethyl cellulose polymer by permanganate, part I

Authors
Shaker, AM
Citation
Am. Shaker, Kinetics and mechanism of formation of manganate(VI) and hypomanganate(V) coordination polymer intermediates during the base-catalyzed oxidation of carboxymethyl cellulose polymer by permanganate, part I, INT J CH K, 33(10), 2001, pp. 605-611
Citations number
22
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
INTERNATIONAL JOURNAL OF CHEMICAL KINETICS
ISSN journal
05388066 → ACNP
Volume
33
Issue
10
Year of publication
2001
Pages
605 - 611
Database
ISI
SICI code
0538-8066(200110)33:10<605:KAMOFO>2.0.ZU;2-3
Abstract
Kinetics and mechanism of the disproportionation of MnO4- via [CMC-(MnO42-) -O-VI I intermediate complex formation during the oxidation of carboxymethy l cellulose (CMC) polysaccharide have been investigated spectrophotometrica lly at pH greater than or equal to 12 and various temperatures ( 15-35 degr eesC). The rate law was suggested as Rate = k(obs)MnO(4)(-) I Kinetic and s pectrophotometric measurements revealed the formation of hypomanganate(V) a nd manganate(VI) transient species, which are base-catalyzed, A mechanism w as postulated that is consistent with the experimental data. (C) 2001 John Wiley & Sons, Inc.