Atmospheric fate of several hydrofluoroethanes and hydrochloroethanes: 2. UV absorption cross sections and atmospheric lifetimes
- National Oceanic and Atmospheric Administration, Boulder, CO (USA) Univ. of Colorado, Boulder (USA)
The temperature dependent UV absorption cross-sections of the hydrochlorofluoroethanes CF{sub 3}CHFCl, CH{sub 3}CF{sub 2}Cl, and CF{sub 3}CHCl{sub 2} are reported. The UV absorption cross-sections were measured over the temperature range 203 to 295 K and the wavelength range 190 to 230 nm. The hydrofluorocarbons CH{sub 3}CF{sub 2}H and CF{sub 3}CH{sub 2}F were also studied at 295 K and upper limits for their UV absorption cross-sections over the wavelength range 190 to 230 nm were obtained. The atmospheric lifetimes of these species were calculated using a one-dimensional atmospheric model, using the kinetic data obtained in the previous paper (Gierczak et al. 1991) and the absorption cross-section data obtained in the present study.
- OSTI ID:
- 5458129
- Journal Information:
- Journal of Geophysical Research; (United States), Journal Name: Journal of Geophysical Research; (United States) Vol. 96:D3; ISSN 0148-0227; ISSN JGREA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Atmospheric fate of CF sub 3 Br, CF sub 2 Br sub 2 , CF sub 2 ClBr, and CF sub 2 BrCF sub 2 Br
UV absorption spectrum of the C2 Criegee intermediate CH{sub 3}CHOO
Related Subjects
540120* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
ABSORPTION SPECTRA
ALKANES
ATMOSPHERIC CHEMISTRY
CHEMICAL REACTIONS
CHEMISTRY
DECOMPOSITION
ELECTROMAGNETIC RADIATION
ETHANE
FREONS
HALOGENATED ALIPHATIC HYDROCARBONS
HYDROCARBONS
LIFETIME
LOW TEMPERATURE
MATHEMATICAL MODELS
MEDIUM TEMPERATURE
ONE-DIMENSIONAL CALCULATIONS
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
PHOTOCHEMICAL REACTIONS
PHOTOLYSIS
RADIATIONS
SPECTRA
TEMPERATURE DEPENDENCE
ULTRAVIOLET RADIATION