APPLICABILITY OF THE DOUBLE SORPTION MODEL FOR THE DESCRIPTION OF KINETIC FEATURES OF THE OXIDATION REACTION IN LOW-MOLECULAR-WEIGHT 3-METHYLCYCLOHEPTANE GLASS

Citation
Sv. Vasenkov et Va. Tolkachev, APPLICABILITY OF THE DOUBLE SORPTION MODEL FOR THE DESCRIPTION OF KINETIC FEATURES OF THE OXIDATION REACTION IN LOW-MOLECULAR-WEIGHT 3-METHYLCYCLOHEPTANE GLASS, Kinetics and catalysis, 33(5-6), 1992, pp. 851-855
Citations number
15
Categorie Soggetti
Chemistry Physical
Journal title
ISSN journal
00231584
Volume
33
Issue
5-6
Year of publication
1992
Pages
851 - 855
Database
ISI
SICI code
0023-1584(1992)33:5-6<851:AOTDSM>2.0.ZU;2-K
Abstract
The kinetics were studied of the oxidation reaction of matrix radicals C8H17 + O2 --> C8H17O2 in a vitreous matrix of 3-methylheptane at var ious concentrations of oxygen and nitrogen of the samples, as well as the influence of the annealing of the matrix on the kinetics. It was c oncluded that deep traps for the molecules of the gas exist in the mat rix, leading to retardation of the diffusion of oxygen. It was found t hat the annealing of the matrix at 90 K leads to destruction of the de ep traps. It was shown that the nonexponentiality of the kinetic curve s of the oxidation reaction in 3-methylheptane is due to the occurrenc e of a distribution of the rates according to constants.