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Atmospheric chemistry of trans-CF3CHCHCl: Kinetics of the gas-phase reactions with Cl atoms, OH radicals, and O3

Paper ID Volume ID Publish Year Pages File Format Full-Text
27944 44051 2008 6 PDF Available
Title
Atmospheric chemistry of trans-CF3CHCHCl: Kinetics of the gas-phase reactions with Cl atoms, OH radicals, and O3
Abstract

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-chloro-propene, t-CF3CHCHCl, in 700 Torr total pressure at 295 ± 2 K. Values of k(Cl + t-CF3CHCHCl) = (5.22 ± 0.72) × 10−11 cm3 molecule−1 s−1, k(OH + t-CF3CHCHCl) = (4.40 ± 0.38) × 10−13 cm3 molecule−1 s−1 and k(O3 + t-CF3CHCHCl) = (1.46 ± 0.12) × 10−21 cm3 molecule−1 s−1, were established (quoted uncertainties are 2σ; see Experimental section). The IR spectrum of t-CF3CHCHCl is reported. The atmospheric lifetime of t-CF3CHCHCl is determined by reaction with OH radicals and is approximately 26 days. The global warming potential of t-CF3CHCHCl is approximately 7 for a 100-year time horizon.

Keywords
CFC replacement; Chlorofluoroalkene; Atmospheric lifetime
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Atmospheric chemistry of trans-CF3CHCHCl: Kinetics of the gas-phase reactions with Cl atoms, OH radicals, and O3
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 199, Issue 1, 5 September 2008, Pages 92–97
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
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