Atmospheric chemistry of cis-CF3CH=CHCl (HCFO-1233zd(Z)): kinetics of the gas-phase reactions with Cl atoms, OH radicals, and O3

Lene Løffler Andersen, Freja From Østerstrøm, Mads Peter Sulbæk Andersen, Ole John Nielsen, Timothy J. Wallington

11 Citationer (Scopus)

Abstract

FTIR smog chamber techniques were used to measure the rate coefficients k(Cl + cis-CF3CH=CHCl) = (6.26 ± 0.84) × 10-11, k(OH + cis-CF3CH=CHCl) = (8.45 ± 1.52) × 10-13, and k(O3 + cis-CF3CH=CHCl) = (1.53 ± 0.12) × 10-21 cm3 molecule-1 s-1. The atmospheric lifetime of cis-CF3CH=CHCl is determined by reaction with OH radicals and is estimated to be 14 days. The infrared spectrum of cis-CF3CH=CHCl was recorded and the integrated absorption over the range 600-2000 cm-1 was measured to be (1.48 ± 0.07) × 10-16 cm molecule-1. Accounting for non-uniform horizontal and vertical mixing leads to a GWP100 value of essentially zero. Correction to account for unwanted Cl atom chemistry in our previous relative rate study of the kinetics of the reaction of OH with trans-CF3CH=CHCl gives k(OH + trans-CF3CH=CHCl) = (3.61 ± 0.37) × 10-13 cm3 molecule-1 s-1.

OriginalsprogEngelsk
TidsskriftChemical Physics Letters
Vol/bind639
Sider (fra-til)289-293
Antal sider5
ISSN0009-2614
DOI
StatusUdgivet - 16 okt. 2015

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