Absolute rate parameters for the reaction of O(/sup 3/P) with H/sub 2/CO over the temperature range 250 to 750 K
Absolute rate constants for the reaction of ground state oxygen atoms with formaldehyde were determined over the temperature range 298 to 748 K using the discharge flow-resonance fluorescence technique. The results were combined with rate data from a flash photolysis-resonance fluorescence study (250 to 498 K) of this reaction to obtain an Arrhenius expression that is linear from 250 to 748 K: k/sub 1/(T) = (2.94 +- 0.26) x 10/sup -11/ exp (-3065 +- 67/RT) cm/sup 3/ molecule/sup -1/ s/sup -1/. This result is compared with those of previous studies and possible kinetic complications are discussed in terms of a detailed mechanism. The significance of an extrapolation of this determination of k/sub 1/ to higher and lower temperatures is also discussed.
- Research Organization:
- Department of Energy and Environment, Brookhaven National Laboratory, Upton, New York 11973
- OSTI ID:
- 5772977
- Journal Information:
- J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 72:2; ISSN JCPSA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ALDEHYDES
ARRHENIUS EQUATION
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
COMBUSTION
CRYOGENIC FLUIDS
EARTH ATMOSPHERE
ELEMENTS
FLUIDS
FORMALDEHYDE
HIGH TEMPERATURE
KINETICS
MEDIUM TEMPERATURE
NONMETALS
ORGANIC COMPOUNDS
OXIDATION
OXYGEN
REACTION KINETICS
STRATOSPHERE
THERMOCHEMICAL PROCESSES