Kinetics of the Reaction of Methyl Radical with Hydroxyl Radical and Methanol Decomposition†

2007 ◽  
Vol 111 (19) ◽  
pp. 3932-3950 ◽  
Author(s):  
Ahren W. Jasper ◽  
Stephen J. Klippenstein ◽  
Lawrence B. Harding ◽  
Branko Ruscic
Keyword(s):  
Hydroxyl Radical ◽  
Methanol Decomposition ◽  
Methyl Radical ◽  
Kinetics Of

Kinetics of the Reactions of Methyl Radical with Hydrogen, Methyl and Ethyl Peroxides

2021 ◽  
Vol 6 (7) ◽  
pp. 1548-1554
Author(s):  
Fei Cao ◽  
Gai Shi ◽  
Jinou Song ◽  
Pengzhen Tian ◽  
Zhijun Li
Keyword(s):  
Methyl Radical ◽  
Kinetics Of

Soil-pH and cement influence the weathering kinetics of chrysotile asbestos in soils and its hydroxyl radical yield

2021 ◽  
pp. 128068
Author(s):  
Martin Walter ◽  
Gerald Geroldinger ◽  
Lars Gille ◽  
Stephan M. Kraemer ◽  
Walter D.C. Schenkeveld
Keyword(s):  
Hydroxyl Radical ◽  
Soil Ph ◽  
Chrysotile Asbestos ◽  
Kinetics Of ◽  
Radical Yield

Reactions of free radicals with aromatic compounds in the gaseous phase. I. Kinetics of the reaction of methyl radicals with toluene

1964 ◽  
Vol 17 (12) ◽  
pp. 1329 ◽  
Author(s):  
MFR Mulcahy ◽  
DJ Williams ◽  
JR Wilmshurst
Keyword(s):  
Flow System ◽  
Methyl Radicals ◽  
Methyl Radical ◽  
Hydrogen Atoms ◽  
Methyl Group ◽  
Benzyl Radical ◽  
Toluene Molecule ◽  
Benzyl Radicals ◽  
Butyl Peroxide ◽  
Kinetics Of

The kinetics of abstraction of hydrogen atoms from the methyl group of the toluene molecule by methyl radicals at 430-540�K have been determined. The methyl radicals were produced by pyrolysis of di-t-butyl peroxide in a stirred-flow system. The kinetics ,agree substantially with those obtained by previous authors using photolytic methods for generating the methyl radicals. At toluene and methyl-radical concentrations of about 5 x 10-7 and 10-11 mole cm-3 respectively the benzyl radicals resulting from the abstraction disappear almost entirely by combination with methyl radicals at the methylenic position. In this respect the benzyl radical behaves differently from the iso-electronic phenoxy radical, which previous work has shown to combine with a methyl radical mainly at ring positions. The investigation illustrates the application of stirred-flow technique to the study of the kinetics of free-radical reactions.

Molecular structure effects on the kinetics of hydroxyl radical addition to azo dyes

2002 ◽  
Vol 15 (5) ◽  
pp. 287-292 ◽  
Author(s):  
Hugo Destaillats ◽  
Adrián G. Turjanski ◽  
Darío A. Estrin ◽  
Michael R. Hoffmann
Keyword(s):  
Molecular Structure ◽  
Hydroxyl Radical ◽  
Azo Dyes ◽  
Radical Addition ◽  
Kinetics Of

Kinetics of the reactions of the hydroxyl radical with xylenes

1981 ◽  
Vol 85 (20) ◽  
pp. 2913-2916 ◽  
Author(s):  
J. M. Nicovich ◽  
R. L. Thompson ◽  
A. R. Ravishankara
Keyword(s):  
Hydroxyl Radical ◽  
Kinetics Of

Vacuum ultra-violet flash photolysis of water vapour

1962 ◽  
Vol 266 (1325) ◽  
pp. 185-197 ◽  
Keyword(s):  
Carbon Dioxide ◽  
Hydrogen Atom ◽  
Complex Formation ◽  
Hydroxyl Radical ◽  
Water Vapour ◽  
Iodine Atom ◽  
Flash Photolysis ◽  
Ultra Violet ◽  
Kinetics Of ◽  
Vacuum Ultra Violet

An apparatus for effecting flash photolysis in the vacuum ultra-violet region is described. Appreciable decompositions of water, carbon dioxide, acetylene, ethylene and methane were effected with a 2000 J flash of 30 p .s duration. A detailed study of water vapour photolysis has established that, in the primary step, at least 90 % of the dissociation leads to a hydrogen atom and a hydroxyl radical. The kinetics of the hydroxyl radical disappearance, following flash photolysis of water vapour in the presence of various third bodies, has been studied. The rate constant is faster in xenon than in helium and other similarities with the data on iodine atom recombination suggest the operation of a mechanism involving intermediate complex formation.

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