ISSN:
1573-0662
Keywords:
Alternative hydro-chloro-fluoro-ethanes
;
UV absorption cross-sections
;
photodissociation coefficients
;
temperature-dependence
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
,
Geosciences
Notes:
Abstract The absorption cross-sections of HCFC-123 (CF3−CHCl2), HCFC-141b (CH3−CFCl2) and HCFC-142b (CH3−CF2Cl) 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.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00048076
Permalink
