Abstract
Smog chamber/FTIR techniques were used to study the OH radical, the Cl atom, and ozone initiated oxidation of CF3CFCF2 in 700 Torr of air at 296 K. Relative rate methods were used to measure k(OH + CF3CFCF2) = (2.4 ± 0.3) × 10-12 and k(Cl + CF3CFCF2) = (2.7 ± 0.3) × 10-11; absolute techniques were used to derive an upper limit of k(O3 + CF3CFCF2) < 3 × 10-21 cm3 molecule-1 s-1. OH radical and Cl atom-initiated atmospheric oxidation of CF3CFCF2 gives COF2 and CF3C(O)F in molar yields of 100%. The atmospheric lifetime of CF3CFCF2 is approximately 9 days with degradation proceeding via reaction with OH radicals to give trifluoroacetic acid in a molar yield of 100%. Results are discussed with respect to previous measurements of k(OH + CF3CFCF2) and k(O3 + CF3CFCF2) and the potential importance of CF3CFCF2 as a source of trifluoroacetic acid.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
