tial . However, questions have been raised concerning the environmental impact of trifluoroacetic acid which is formed from HFC-134a in the atmosphere as a result of the following reaction sequence [7 -10]. (1) (2) (3) (4) Reaction (4) produces CF 3 C(O)F which is hydrolyzed to CF 3 COOH after u
The Atmospheric Chemistry of Alkoxy Radicals
β Scribed by John J. Orlando; Geoffrey S. Tyndall; Timothy J. Wallington
- Publisher
- John Wiley and Sons
- Year
- 2004
- Weight
- 51 KB
- Volume
- 35
- Category
- Article
- ISSN
- 0931-7597
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π SIMILAR VOLUMES
Under tropospheric conditions, the major alkoxy radical removal processes involve reaction with O 2 , unimolecular decomposition, and isomerization [1 -4]. The alkoxy radical isomerizations proceed by a cyclic transition state and, because of the ring strain involved, the 1,4-H shift isomerizations
A relative rate technique has been used to study the title reaction over the pressure range 100-700 Torr of air at 296 + 2 K. Four different reference compounds (13CO, CH4, CH2FCI, and CD 4) were used. Using k(CF30 + CH 4) = (2.2 -1-0.2) Γ 10-14 cm 3 molecule-1 s-1 a rate constant of k(CF30 + 03) =
## Abstract Smog chamber/FTIR techniques were used to study the Cl atom initiated oxidation of CH~2~FOCH~2~F in 700 Torr of N~2~/O~2~ at 296 K. Relative rate techniques were used to measure __k__(Cl + CH~2~FOCH~2~F) = (4.6 Β± 0.7) Γ 10^β13^ and __k__(Cl + CH~2~FOC(O)F) = (2.9 Β± 0.8) Γ 10^β15^ (in un