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Oxidation by Permanganate in strong alkaline medium. Oxidation of ethane‐1,2‐diol, glycol aldehyde, glycollic acid, and glyoxylic acid
Author(s) -
Szammer J.,
Jáky M.,
Gerasimov O. V.
Publication year - 1992
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.550240203
Subject(s) - glyoxylic acid , chemistry , permanganate , manganate , aldehyde , ethylene glycol , deprotonation , diol , aqueous solution , ozonolysis , medicinal chemistry , organic chemistry , inorganic chemistry , catalysis , ion , power (physics) , physics , battery (electricity) , quantum mechanics
A study was made on the kinetics and mechanism of the reaction\documentclass{article}\pagestyle{empty}\begin{document}$$ 2{\rm MnO}_4 ^- + {\rm S} \longrightarrow 2{\rm MnO}_4 ^{2-} + {\rm Product} $$\end{document} in aqueous solutions of 0.10 to 2.0 mol dm −3 alkaline concentrations. The substrates (S) applied were ethane‐1,2‐diol (ethylene glycol), glycol aldehyde, glycollic acid, and glyoxylic acid. Glycol aldehyde and glyoxylic acid were present in the form of dihydrate. In each case alkoxy anion is the reactive form and the K B constant of deprotonation can be calculated from the kinetic data. A mechanism based on electron abstraction is suggested. Manganate reacts with these substrates much slower than permanganate.