Open AccessAtmospheric chemistry of CF 3 CFHOCF 3 : Reaction with OH radicals, atmospheric lifetime, and global warming potential
Author(s) -
Takahashi Kenshi,
Matsumi Yutaka,
Wallington Timothy J.,
Hurley Michael D.
Publication year - 2002
Publication title -
journal of geophysical research: atmospheres
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.67
H-Index - 298
eISSN - 2156-2202
pISSN - 0148-0227
DOI - 10.1029/2002jd002125
Subject(s) - radical , global warming potential , atmospheric chemistry , diluent , torr , analytical chemistry (journal) , environmental science , chemistry , atmospheric sciences , environmental chemistry , meteorology , greenhouse gas , physics , nuclear chemistry , ozone , thermodynamics , organic chemistry , ecology , biology
Smog chamber/FTIR techniques were used to study the OH radical initiated oxidation of CF 3 CFHOCF 3 in 700 torr of air diluent at 296 K. Relative rate techniques were used to measure k 1 (OH + CF 3 CFHOCF 3 ) = (1.4 ± 0.3) × 10 −15 cm 3 molecule −1 s −1 . The atmospheric lifetime of CF 3 CFHOCF 3 is estimated to be 40 years. The IR spectrum of CF 3 CFHOCF 3 was measured and used to estimate a global warming potential (relative to CO 2 , 100 year time horizon) for CF 3 CFHOCF 3 of 4500. Results are discussed with respect to the previous literature data.