Atmospheric chemistry of FO[sub 2] radicals. Reaction with Ch[sub 4], O[sub 3], NO, NO[sub 2], and CO at 295 K
- Riso National Lab., Roskilde (Denmark)
- Ford Motor Company, Dearborn, MI (United States)
Using pulse radiolysis combined with UV absorption spectroscopy, upper limits for the rate constants of the reaction of the FO[sub 2] radical with O[sub 3], CH[sub 4], and CO were determined to be <3.4 x 10[sup [minus]16], <4.1 x 10[sup [minus]15], and <5.1 x 10[sup [minus]16] cm[sup 3] molecule[sup [minus]1] s[sup [minus]1], respectively. The rate constants for the reactions of FO[sub 2] radicals with NO and NO[sub 2] were measured: FO[sub 2] + NO [yields] FNO + O[sub 2] (10a); FO[sub 2] + NO[sub 2] [yields] products (11). The rate constants for reactions 10 and 11 were determined to be (1.47 [+-] 0.08) x 10[sup [minus]12] and (1.05 [+-] 0.15) x 10[sup [minus]13] cm[sup 3] molecule[sup [minus]1] s[sup [minus]1], respectively. Reaction 10a was found to give FNO in a yield of 100 [+-] 14%. As a part of this work, an upper limit of the reaction of FO radicals with O[sub 3] was determined to be <1.2 x 10[sup [minus]12] cm[sup 3] molecule[sup [minus]1] s[sup [minus]1]. Results are discussed in the context of the atmospheric chemistry of the FO[sub 2] radical and hydrofluorocarbons. 23 refs., 12 figs., 2 tabs.
- OSTI ID:
- 7204018
- Journal Information:
- Journal of Physical Chemistry; (United States), Journal Name: Journal of Physical Chemistry; (United States) Vol. 98:27; ISSN JPCHAX; ISSN 0022-3654
- Country of Publication:
- United States
- Language:
- English
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400102 -- Chemical & Spectral Procedures
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54 ENVIRONMENTAL SCIENCES
540110*
540120 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
ABSORPTION SPECTROSCOPY
ALKANES
ATMOSPHERIC CHEMISTRY
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTIONS
CHEMISTRY
COMPILED DATA
DATA
DECOMPOSITION
FLUORINATED ALIPHATIC HYDROCARBONS
HALOGENATED ALIPHATIC HYDROCARBONS
HYDROCARBONS
INFORMATION
KINETICS
METHANE
NITRIC OXIDE
NITROGEN COMPOUNDS
NITROGEN DIOXIDE
NITROGEN OXIDES
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
OZONE
RADIATION EFFECTS
RADICALS
RADIOLYSIS
REACTION KINETICS
SPECTRA
SPECTROSCOPY
ULTRAVIOLET SPECTRA