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Kinetic data for the reaction of hydroxyl radicals with 1,1,1-trichloroacetaldehyde at 298 ± 2 K

✍ Scribed by John Barry; Donncha J. Scollard; Jack J. Treacy; Howard W. Sidebottom; Georges Le Bras; Giles Poulet; Sophie Téton; Alexei Chichinin; Carlos E. Canosa-Mas; David J. Kinnison; Richard P. Wayne; Ole John Nielsen

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
514 KB
Volume
221
Category
Article
ISSN
0009-2614

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✦ Synopsis

The rate constant for the reaction of the hydroxyl radical with l,l, 1-trichloroacetaldehyde has been determined at 298 f. 2 K. Rate data were obtained at atmospheric pressure by a relative rate method. The rate constant was also measured at lower pressures (l-3.4 Torr) using the discharge flow technique with OH radical detection both by resonance fluorescence and electron paramagnetic resonance. The results provide a value of k(OH+CCI,CHO)=

(1.1*0.2)x IO-'* cm3 molecule-' s-' at room temperature giving an atmospheric lifetime for CC13CH0 with respect to reaction with OH radicals of 290 h.

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