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Atmospheric chemistry of trans-CF3CH=CHCl: Kinetics of the gas-phase reactions with Cl atoms, OH radicals, and O3

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Long path length Fourier transform infrared (FTIR)–smog chamber techniques were used to study the
kinetics of the gas-phase reactions of Cl atoms, OH radicals and O3 with trans-3,3,3-trifluoro-1-chloropropene,
t-CF3CH CHCl, in 700 Torr total pressure at 295±2K. Values of k(Cl + t-CF3CH CHCl) =
(5.22±0.72)×10-11 cm3 molecule-1 s-1, k(OH + t-CF3CH CHCl) = (4.40±0.38)×10-13 cm3 molecule-1 s-1
and k(O3 + t-CF3CH CHCl) = (1.46±0.12)×10-21 cm3 molecule-1 s-1, were established (quoted uncertainties
are 2; see Experimental section). The IR spectrum of t-CF3CH CHCl is reported. The atmospheric
lifetime of t-CF3CH CHCl is determined by reaction with OH radicals and is approximately 26 days. The
global warming potential of t-CF3CH CHCl is approximately 7 for a 100-year time horizon.
OriginalsprogEngelsk
TidsskriftJournal of Photochemistry and Photobiology, A: Chemistry
Vol/bind199
Sider (fra-til)92-97
Antal sider6
ISSN1010-6030
StatusUdgivet - 2008

Bibliografisk note

Paper id:: doi:10.1016/j.jphotochem.2008.05.013

ID: 5979124