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Temperature-dependence of ultraviolet absorption cross-sections of alternative chlorofluoroethanes

โœ Scribed by Didier Gillotay; Paul C. Simon

Publisher
Springer Netherlands
Year
1991
Tongue
English
Weight
793 KB
Volume
12
Category
Article
ISSN
0167-7764

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โœฆ Synopsis

The absorption cross-sections of HCFC-123 (CF3--CHCI2) , HCFC-141b (CH3--CFC12) and HCFC-142b (CH3--CF2CI) are measured between 170 and 250 nm for temperatures ranging from 295 to 210 K with uncertainties between 2 and 4%. They are compared with other available determinations. Temperature effects are discussed and parametrical formulae are proposed to compute the absorption cross-section for wavelengths and temperatures useful in atmospheric modelling calculations. Photodissociation coefficients are presented and their temperature-dependence is discussed.

๐Ÿ“œ SIMILAR VOLUMES

Temperature-dependence of ultraviolet ab
Temperature-dependence of ultraviolet absorption cross-sections of alternative chlorofluoroethanes: 2. The 2-chloro-1,1,1,2-tetrafluoro ethane -HCFC-124
โœ Didier Gillotay; Baul C. Simon ๐Ÿ“‚ Article ๐Ÿ“… 1991 ๐Ÿ› Springer Netherlands ๐ŸŒ English โš– 633 KB

The temperature-dependent ultraviolet absorption cross-sections of CF,-CHFCl (HCFC-124) have been measured between 170 and 230 nm for temperatures ranging from 295 to 210 K, with uncertainties between 2 and 4%. These results are compared with other available sets of determinations. Temperature effec