Atmospheric chemistry of CF3COOH. Kinetics of the reaction with OH radicals

Trine E. Møgelberg; Ole J. Nielsen; Jens Sehested; Timothy J. Wallington; Michael D. Hurley

doi:10.1016/0009-2614(94)00692-X

Atmospheric chemistry of CF₃COOH. Kinetics of the reaction with OH radicals

Trine E. Møgelberg^*, Ole J. Nielsen, Jens Sehested, Timothy J. Wallington, Michael D. Hurley

^*Corresponding author af dette arbejde

19 Citationer (Scopus)

Abstract

Two different experimental techniques were used to study the kinetics of the reaction of OH radicals with trifluoroacetic acid, CF₃COOH. Using a pulse radiolysis absolute rate technique, rate constants at 315 and 348 K were determined to be (1.6±0.4)×10^-13 and (1.5±0.2)×10^-13 cm³ molecule^-1 s^-1, respectively. Using a long path-length FTIR relative rate technique a rate constant of (1.7±0.5)×10^-13 cm³ molecule^-1 s^-1 was obtained at 296 K. In the atmosphere, reaction with OH radicals in the gas phase is estimated to account for 10%-20% of the loss of CF₃COOH. The major fate of CF₃COOH is rainout.

Originalsprog	Engelsk
Tidsskrift	Chemical Physics Letters
Vol/bind	226
Udgave nummer	1-2
Sider (fra-til)	171-177
Antal sider	7
ISSN	0009-2614
DOI	https://doi.org/10.1016/0009-2614(94)00692-X
Status	Udgivet - 12 aug. 1994

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Citationsformater

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title = "Atmospheric chemistry of CF3COOH. Kinetics of the reaction with OH radicals",

abstract = "Two different experimental techniques were used to study the kinetics of the reaction of OH radicals with trifluoroacetic acid, CF3COOH. Using a pulse radiolysis absolute rate technique, rate constants at 315 and 348 K were determined to be (1.6±0.4)×10-13 and (1.5±0.2)×10-13 cm3 molecule-1 s-1, respectively. Using a long path-length FTIR relative rate technique a rate constant of (1.7±0.5)×10-13 cm3 molecule-1 s-1 was obtained at 296 K. In the atmosphere, reaction with OH radicals in the gas phase is estimated to account for 10%-20% of the loss of CF3COOH. The major fate of CF3COOH is rainout.",

author = "M{\o}gelberg, {Trine E.} and Nielsen, {Ole J.} and Jens Sehested and Wallington, {Timothy J.} and Hurley, {Michael D.}",

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T1 - Atmospheric chemistry of CF3COOH. Kinetics of the reaction with OH radicals

AU - Møgelberg, Trine E.

AU - Nielsen, Ole J.

AU - Sehested, Jens

AU - Wallington, Timothy J.

AU - Hurley, Michael D.

PY - 1994/8/12

Y1 - 1994/8/12

N2 - Two different experimental techniques were used to study the kinetics of the reaction of OH radicals with trifluoroacetic acid, CF3COOH. Using a pulse radiolysis absolute rate technique, rate constants at 315 and 348 K were determined to be (1.6±0.4)×10-13 and (1.5±0.2)×10-13 cm3 molecule-1 s-1, respectively. Using a long path-length FTIR relative rate technique a rate constant of (1.7±0.5)×10-13 cm3 molecule-1 s-1 was obtained at 296 K. In the atmosphere, reaction with OH radicals in the gas phase is estimated to account for 10%-20% of the loss of CF3COOH. The major fate of CF3COOH is rainout.

AB - Two different experimental techniques were used to study the kinetics of the reaction of OH radicals with trifluoroacetic acid, CF3COOH. Using a pulse radiolysis absolute rate technique, rate constants at 315 and 348 K were determined to be (1.6±0.4)×10-13 and (1.5±0.2)×10-13 cm3 molecule-1 s-1, respectively. Using a long path-length FTIR relative rate technique a rate constant of (1.7±0.5)×10-13 cm3 molecule-1 s-1 was obtained at 296 K. In the atmosphere, reaction with OH radicals in the gas phase is estimated to account for 10%-20% of the loss of CF3COOH. The major fate of CF3COOH is rainout.

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U2 - 10.1016/0009-2614(94)00692-X

DO - 10.1016/0009-2614(94)00692-X

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