Atmospheric chemistry of E-CF3CH[dbnd]CHCF3: Reaction kinetics of OH radicals and products of OH-initiated oxidation

Feiyao Qing, Qin Guo, Liang Chen*, Hengdao Quan, Junji Mizukado

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

The reaction rate coefficients for the E-CF3CH[dbnd]CHCF3 with OH were measured using the relative rate method: k (298 K) = (1.10 ± 0.02) × 10−13 and k (253–328 K) = (4.80 ± 0.92) × 10−13 exp [−(445 ± 28)/T] cm3 molecule−1 s−1. The atmospheric lifetime was 105 d, and the radiative efficiency (RE) was 0.171 W m−2 ppb−1. The estimated POCPs were evaluated as 0.8 and 0.3 under North-west European and USA urban conditions, respectively. The global warming potential was estimated as 7 for the global 100-year time horizon. CF3OOOCF3, CF3C(O)H, COF2, CO, and CO2 were observed as carbon-containing products.

Original languageEnglish
Pages (from-to)93-98
Number of pages6
JournalChemical Physics Letters
Volume706
DOIs
Publication statusPublished - 16 Aug 2018

Keywords

  • Degradation mechanism
  • E-CFCH[dbnd]CHCF
  • Global warming potential (GWP)
  • Photochemical ozone creation potential (POCP)

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