Initial process of the oxidation of the methyl radical in reflected shock waves

Journal Article · Thu Mar 27 04:00:00 EST 1986 · J. Phys. Chem.; (United States)

DOI:https://doi.org/10.1021/j100398a042· OSTI ID:5815557

Saito, K; Ito, R; Kakumoto, T; Imamura, A

The oxidation of the methyl radical was investigated in mixtures of C/sub 2/H/sub 6/-O/sub 2/-Ar and CH/sub 3/I-O/sub 2/-Ar behind reflected shock waves by monitoring the O atom, and OH radical in the temperature range from 1430 to 2150 K. Computer kinetic modeling of the experimental profiles yielded a rate constant for CH/sub 3/ + O/sub 2/ ..-->.. CH/sub 3/O + O (2) of k/sub 2/ = 10/sup 14.35/ exp(-33.7 kcal mol/sup -1//RT) cm/sup 3/ mol/sup -1/ s/sup -1/. This value was essentially the same as those reported previously. For the competing reaction CH/sub 3/ + O/sub 2/ ..-->.. CH/sub 2/O + OH (3) experiments showed a low sensitivity to the assumed k/sub 3/ value and the following rate constant was evaluated with an uncertainty factor of 5: k/sub 3/ = 10/sup 11.50/ exp(-9.0 kcal mol/sup -1//RT) cm/sup 3/mol/sup -1/s/sup -1/. These results were discussed in terms of ab initio MO calculations by Kamiya et al. 27 references, 12 figures, 2 tables.

• Research Organization: Hiroshima Univ., Japan
• OSTI ID: 5815557
• Journal Information: J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 90:7; ISSN JPCHA
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
025000 -- Petroleum-- Combustion
03 NATURAL GAS
034000 -- Natural Gas-- Combustion
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ALKYL RADICALS
ARGON
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
DATA
ELEMENTS
EXPERIMENTAL DATA
FLUIDS
GASES
HYDROGEN
HYDROXYL RADICALS
INFORMATION
KINETICS
METHYL RADICALS
NONMETALS
NUMERICAL DATA
OXIDATION
OXYGEN
QUANTITY RATIO
RADICALS
RARE GASES
REACTION KINETICS
SHOCK TUBES
SHOCK WAVES
VERY HIGH TEMPERATURE