Atmospheric chemistry of hydrofluorocarbon 134a: fate of the alkoxy radical CF3O
Article Abstract:
The atmospheric chemistry of the alkoxy radical CF3O emitted during the photooxidation of hydrofluorocarbon (HFC) 134a is investigated by means of Fourier transform spectroscopy. Experiments are conducted wherein a Sirius 100 FT-IR spectrometer interfaced to a evacuable pyrex chamber is employed to obtain the infrared spectra. Results indicate that the reaction of CF3O with HFC produces trifluoromethanol which can easily be decomposed to carbon dioxide.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1993
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Atmospheric chemistry of CF3OH: is photolysis important?
Article Abstract:
Ab initio molecular orbital and solar radiation flux calculations were conducted to investigate the potential for the atmospheric photolysis of CF3OH to generate CF3O radicals in the stratosphere. Results show that CF3OH has a lifetime on the order of millions of years at altitudes under 40 kilometers, when photolysis is considered. Hence, the process of CF3OH photolysis takes place very slowly and has no atmospheric significance.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1995
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Atmospheric chemistry of hydrofluorocarbon 134a: fate of the alkoxy radical CF3CFHO
Article Abstract:
Hydrofluorocarbon 134a (HFC-134a) could be an environmentally acceptable alternative to chlorofluorocarbons. A study of the atmospheric photo-oxidation of HFC-134a indicated that CF3COF, HC(O)F and COF2 were produced. Fourier transform infrared spectroscopy was used to determine the atmospheric fate of the alkoxy radical CF3CFHO obtained from the atmospheric photo-oxidation of HFC-134a when NOx was present.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1992
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