Atmospheric degradation of CF{sub 3}OCF=CF{sub 2}: Kinetics and mechanism of its reaction with OH radicals and Cl atoms
Smog chamber/FTIR techniques were used to study the OH radical and Cl atom initiated oxidation of CF{sub 3}-OCF=CF{sub 2} in 700 Torr of air at 296 K. Using relative rate techniques it was determined that {kappa}(OH + CF{sub 3}-OCF=CF{sub 2}) = (2.6 {+-} 0.3) x 10{sup {minus}12} and {kappa}(Cl + CF{sub 3}OCF=CF{sub 2}) = (3.0 {+-} 0.4) x 10{sup {minus}11} cm{sup 3} molecule{sup {minus}1} s{sup {minus}1}. Cl atom initiated atmospheric oxidation of CF{sub 3}OCF=CF{sub 2} gives COF{sub 2} and CF{sub 3}OC(O)F in molar yields of 100%. OH radical initiated atmospheric oxidation of CF{sub 3}OCF=CF{sub 2} in 700 Torr of air at 295 K gives COF{sub 2}, CF{sub 3}OC(O)F, and FC(O)C(O)F in molar yields of 90, 53, and 40%. The results are discussed with respect to the atmospheric degradation mechanism of CF{sub 3}OCF=CF{sub 2} and other ethers.
- Research Organization:
- Kyoto Univ. (JP)
- OSTI ID:
- 20034396
- Journal Information:
- Journal of Physical Chemistry A: Molecules, Spectroscopy, Kinetics, Environment, amp General Theory, Journal Name: Journal of Physical Chemistry A: Molecules, Spectroscopy, Kinetics, Environment, amp General Theory Journal Issue: 13 Vol. 104; ISSN 1089-5639; ISSN JPCAFH
- Country of Publication:
- United States
- Language:
- English
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