ATMOSPHERIC FATE OF CHLOROBROMOMETHANE - RATE-CONSTANT FOR THE REACTION WITH OH, UV SPECTRUM, AND WATER SOLUBILITY

Authors
ORKIN VL KHAMAGANOV VG GUSCHIN AG HUIE RE KURYLO MJ
Citation
Vl. Orkin et al., ATMOSPHERIC FATE OF CHLOROBROMOMETHANE - RATE-CONSTANT FOR THE REACTION WITH OH, UV SPECTRUM, AND WATER SOLUBILITY, The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory, 101(2), 1997, pp. 174-178
Citations number
25
Categorie Soggetti
Chemistry Physical
Journal title
The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory → ACNP
ISSN journal
10895639
Volume
101
Issue
2
Year of publication
1997
Pages
174 - 178
Database
ISI
SICI code
1089-5639(1997)101:2<174:AFOC-R>2.0.ZU;2-3
Abstract
The rate constant for the reaction of CH2ClBr with OH was measured by both flash photolysis resonance fluorescence and discharge flow electr on paramagnetic resonance techniques over the temperature range 277-37 0 K. The Arrhenius expression 3.04(-0.6)(+0.8) x 10(-12) exp{-(978+/-7 2)/T} cm(3) molecule(-1) s(-1) was derived from a composite fit to bot h data sets, Absorption cross-sections of CH2ClBr were measured from 1 87 to 290 nm at 295 K. The solubility of CH2ClBr in water was also est imated to determine if such a process could be important in determinin g the atmospheric lifetime of CH2ClBr. The atmospheric lifetime and oz one depletion potential for CH2ClBr were estimated.