Rate constants for the reaction of OH + CO, OD + CO, and OH + methane as a function of temperature

Journal Article · Thu Aug 30 04:00:00 EDT 1984 · J. Phys. Chem.; (United States)

DOI:https://doi.org/10.1021/j150662a049· OSTI ID:5961484

Jonah, C D; Mulac, W A; Zeglinski, P

The temperature dependence of the reactions of OH + CO, OD + CO, and OH + methane has been measured from 340 to 1250 K in the presence of 1 atm of argon and 15 torr of water vapor. The OH + methane measurements are in excellent agreement with previous studies. The rate constants for OH + CO are in excellent agreement with previous results over the range of 500-1000 K; at lower temperatures the rates measured are faster than earlier results. This is probably due to higher water concentrations used in these experiments. Above 1000 K, the rates determined by this work are considerably faster than those previously determined. Previous experiments at higher temperatures are much less direct than the technique used in this work. The agreement between the OD + CO is good at low temperatures; however, there appears to be no high-temperature results to which we can compare these results. The OH + CO results may be described by 4.05 x 10/sup -14/ exp(667/T) + 3.04 x 10/sup -9/ exp(-3801/T) and the OD + CO results by 1.27 x 10/sup -14/ exp(455/T) + 2.33 x 10/sup -10/ exp(-5668/T). The OH + CH/sub 4/ data may be described by 3.7 x 10/sup -11/ exp (-2550/T). 31 references, 6 figures.

• Research Organization: Argonne National Lab., IL
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 5961484
• Journal Information: J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 88:18; ISSN JPCHA
• Country of Publication: United States
• Language: English

Related Subjects

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400600* -- Radiation Chemistry
ABSORPTION SPECTRA
ALKANES
ANIONS
ARGON
BEAMS
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
CHARGED PARTICLES
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHEMISTRY
DATA
DECOMPOSITION
DEUTERIDES
DEUTERIUM COMPOUNDS
ELECTRON BEAMS
ELEMENTS
EXPERIMENTAL DATA
FLUIDS
GASES
HIGH TEMPERATURE
HYDROCARBONS
HYDROGEN COMPOUNDS
HYDROXYL RADICALS
INFORMATION
IONS
ISOTOPE EFFECTS
ISOTOPE ENRICHED MATERIALS
KINETICS
LEPTON BEAMS
MATERIALS
MEDIUM TEMPERATURE
METHANE
NONMETALS
NUMERICAL DATA
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PARTICLE BEAMS
PULSES
RADIATION CHEMISTRY
RADIATION EFFECTS
RADICALS
RADIOLYSIS
RARE GASES
REACTION KINETICS
SPECTRA
TEMPERATURE DEPENDENCE
VAPORS
VERY HIGH TEMPERATURE
WATER VAPOR