Atmospheric chemistry of FO[sub 2] radicals. Reaction with Ch[sub 4], O[sub 3], NO, NO[sub 2], and CO at 295 K

Journal Article · Thu Jul 07 00:00:00 EDT 1994 · Journal of Physical Chemistry; (United States)

DOI:https://doi.org/10.1021/j100078a014· OSTI ID:7204018

Sehested, J; Sehested, K; Nielsen, O J ^[1]; Wallington, T J ^[2]

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1. Riso National Lab., Roskilde (Denmark)
2. 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), Vol. 98:27; ISSN 0022-3654
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
CARBON MONOXIDE
CHEMICAL REACTIONS
REACTION KINETICS
METHANE
NITRIC OXIDE
NITROGEN DIOXIDE
OZONE
RADICALS
ABSORPTION SPECTROSCOPY
ATMOSPHERIC CHEMISTRY
COMPILED DATA
FLUORINATED ALIPHATIC HYDROCARBONS
RADIOLYSIS
ULTRAVIOLET SPECTRA
ALKANES
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
CHEMICAL RADIATION EFFECTS
CHEMISTRY
DATA
DECOMPOSITION
HALOGENATED ALIPHATIC HYDROCARBONS
HYDROCARBONS
INFORMATION
KINETICS
NITROGEN COMPOUNDS
NITROGEN OXIDES
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
RADIATION EFFECTS
SPECTRA
SPECTROSCOPY
540110*
400201 - Chemical &amp; Physicochemical Properties
540120 - Environment
Atmospheric- Chemicals Monitoring &amp; Transport- (1990-)
400102 - Chemical &amp; Spectral Procedures