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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 1
Author(s) -
M. Shaker Ali
Publication year - 2001
Publication title -
international journal of chemical kinetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.341
H-Index - 68
eISSN - 1097-4601
pISSN - 0538-8066
DOI - 10.1002/kin.1057
Subject(s) - chemistry , manganate , carboxymethyl cellulose , disproportionation , catalysis , permanganate , kinetics , base (topology) , inorganic chemistry , polymer , polymer chemistry , cellulose , reaction mechanism , organic chemistry , mathematical analysis , power (physics) , mathematics , battery (electricity) , quantum mechanics , sodium , physics
Kinetics and mechanism of the disproportionation of MnO 4 − via [CMC—Mn VI O 4 2− ] intermediate complex formation during the oxidation of carboxymethyl cellulose (CMC) polysaccharide have been investigated spectrophotometrically at pH ≥12 and various temperatures (15–35 ° C). The rate law was suggested as Rate = k obs MnO 4 − ]. Kinetic and spectrophotometric measurements revealed the formation of hypomanganate(V) and manganate(VI) transient species, which are base‐catalyzed. A mechanism was postulated that is consistent with the experimental data. © 2001 John Wiley & Sons, Inc. Int J Chem Kinet 33: 605–611, 2001