کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9605443 | 44139 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Kinetic and mechanistic study of the reactions of OH with IBr and HOI
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بیو مهندسی (مهندسی زیستی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The kinetics and mechanism of the reactions of OH radicals with IBr and HOI have been studied using the mass spectrometric discharge-flow method at 320 K and at a total pressure of 1 Torr of Helium. The rate constant of the reaction OH + IBr â products (1) was measured under pseudo-first order conditions either in excess of IBr or in excess of OH radicals: k1 = (1.4 ± 0.4) Ã 10â10 cm3 moleculeâ1 sâ1. Both HOI and HOBr were detected as products of reaction (1) and the branching ratios 0.84 ± 0.07 and 0.14 ± 0.05, respectively, were found for the channels forming these species. For the reaction OH + HOI â products (2) the total rate constant was determined from the kinetics of HOI consumption in excess of OH radicals: k2 = (5.0 ± 1.2) Ã 10â12 cm3 moleculeâ1 sâ1.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 176, Issues 1â3, 14 December 2005, Pages 155-161
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 176, Issues 1â3, 14 December 2005, Pages 155-161
نویسندگان
Véronique Riffault, Yuri Bedjanian, Gilles Poulet,