Atmospheric chemistry of n-C3F7OCH3: Reaction with OH radicals and Cl atoms and atmospheric fate of n-C3F7OCH2O((center dot)) radicals

Authors
Ninomiya, Y Kawasaki, M Guschin, A Molina, LT Molina, MJ Wallington, TJ
Citation
Y. Ninomiya et al., Atmospheric chemistry of n-C3F7OCH3: Reaction with OH radicals and Cl atoms and atmospheric fate of n-C3F7OCH2O((center dot)) radicals, ENV SCI TEC, 34(14), 2000, pp. 2973-2978
Citations number
20
Categorie Soggetti
Environment/Ecology,"Environmental Engineering & Energy
Journal title
ENVIRONMENTAL SCIENCE & TECHNOLOGY
ISSN journal
0013936X → ACNP
Volume
34
Issue
14
Year of publication
2000
Pages
2973 - 2978
Database
ISI
SICI code
0013-936X(20000715)34:14<2973:ACONRW>2.0.ZU;2-D
Abstract
Relative rate techniques were used to measure k(OH+n-C3F7OCH3) = (1.2 + 0.3 ) x 10(-14), k(Cl+n-C3F7OCH3) = (9.1 +/- 1.3) x 10(-14), and k(Cl+n-C3F7OC( O)H) = (8.2 +/- 2.2) x 10(-15) cm(3) molecule(-1) s(-1) at 295 K. From the value of k(OH+n-C3F7OCH3) an estimate of 4.7 years for the atmospheric life time of n-C3F7OCH3 is obtained. It was determined that the sole atmospheric fate of n-C3F7OCH2O((.)) radicals is reaction with O-2 to give n-C3F7OC(O) H (perfluoro-propyl formate). The results are discussed with respect to the atmospheric chemistry and environmental impact of n-C3F7OCH3.