Atmospheric chemistry of trans-CF3CH = CHF: products and mechanisms of hydroxyl radical and chlorine atom initiated oxidation

Meshkat Sadat Javadi, Roar Søndergaard, Ole John Nielsen, M. D. Hurley, T. J. Wallington

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Abstract

Smog chamber/FTIR techniques were used to study the products and mechanisms of OH radical and Cl atom initiated oxidation of trans-CF3CH = CHF in 700 Torr of N-2/O-2 diluent at 295 +/- 1 K. Hydroxyl radical initiated oxidation leads to the formation of CF3CHO and HC(O)F in yields which were indistinguishable from 100% and were not dependent on the O-2 partial pressure. Chlorine atom initiated oxidation gives HC(O)F, CF3CHO, CF3C(O)Cl, and CF3C(O)CHFCl. The yields of CF3C(O)Cl and CF3C(O)CHFCl increased at the expense of HC(O)F and CF3CHO as the O-2 partial pressure was increased over the range 5-700 Torr. The results are discussed with respect to the atmospheric chemistry and environmental impact of trans-CF3CH = CHF.
Original languageEnglish
JournalAtmospheric Chemistry and Physics
Volume8
Issue number12
Pages (from-to)3141-3147
ISSN1680-7316
Publication statusPublished - 2008
Externally publishedYes

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© Author(s) 2008. This work is distributed under the Creative Commons Attribution 3.0 License.

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