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High‐temperature shock tube study of the reactions CH 3 + OH → products and CH 3 OH + Ar → products
Author(s) -
Vasudevan Venkatesh,
Cook Robert D.,
Hanson Ronald K.,
Bowman Craig T.,
Golden David M.
Publication year - 2008
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.20334
Subject(s) - chemistry , radical , shock tube , thermal decomposition , shock wave , atmospheric temperature range , methyl radical , methanol , decomposition , methyl iodide , photochemistry , analytical chemistry (journal) , organic chemistry , thermodynamics , physics
The reaction between methyl and hydroxyl radicals has been studied in reflected shock wave experiments using narrow‐linewidth OH laser absorption. OH radicals were generated by the rapid thermal decomposition of tert‐butyl hydroperoxide. Two different species were used as CH 3 radical precursors, azomethane and methyl iodide. The overall rate coefficient of the CH 3 + OH reaction was determined in the temperature range 1081–1426 K under conditions of chemical isolation. The experimental data are in good agreement with a recent theoretical study of the reaction. The decomposition of methanol to methyl and OH radicals was also investigated behind reflected shock waves. The current measurements are in good agreement with a recent experimental study and a master equation simulation. © 2008 Wiley Periodicals, Inc. 40: 488–495, 2008