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Atmospheric chemistry of di-tert-butyl ether: Rates and products of the reactions with chlorine atoms, hydroxyl radicals, and nitrate radicals

✍ Scribed by Sarka Langer; Evert Ljungström; Ingvar Wängberg; Timothy J. Wallington; Michael D. Hurley; Ole John Nielsen

Publisher
John Wiley and Sons
Year
1996
Tongue
English
Weight
567 KB
Volume
28
Category
Article
ISSN
0538-8066

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✦ Synopsis

The rate constants for the gas-phase reactions of di-tert-butyl ether (DTBE) with chlorine atoms, hydroxyl radicals, and nitrate radicals have been determined in relative rate experiments using FTlR spectroscopy Values of andk ( D T B E + N 0 3 ) = (2.8 t 0.9) X cm3 molecule-' S K ' were obtained Tert-butyl acetate was identified a s the major product of both CI atom and OH radical initiated oxidation of DTBE in air in the presence of NO.,. The molar tert-butyl acetate yield was 0 85 I 0 1 1 in the CI atom experiments and 0 84 2 0.1 I in OH radical experiments. As part of this work the rate constant for reaction of CI atoms with tert-butyl acetate at 295 K was determined t o be (1.6 t 0.3) X lo-" cm3 molecule-' s-I The stated errors are two standard deviations ( 2 ~) 0 1996 lohn Wiley G Sons.

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