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Tunable diode laser studies of the reaction of Cl atoms with CH3CHO

✍ Scribed by C. S. Kegley-Owen; G. S. Tyndall; J. J. Orlando; A. Fried

Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
174 KB
Volume
31
Category
Article
ISSN
0538-8066

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✦ Synopsis

The reaction Cl ϩ CH 3 CHO : HCl ϩ CH 3 CO (1) was studied using flash photolysis / tunable diode laser absorption spectroscopy to monitor the production of HCl. The rate coefficient, k 1 , was measured to be (7.5 Ϯ 0.8) ϫ 10 Ϫ11 cm 3 molecule Ϫ1 s Ϫ1 at 298 K. HCl (v ϭ 0) and HCl † (v ϭ 1) were measured directly in this study and the yields of HCl (v ϭ 0, 1, Ͼ1) for the reaction of Cl with CH 3 CHO were determined to be 0.44 Ϯ 0.15, 0.56 Ϯ 0.15, and Ͻ0.04, respectively. The rate coefficient for the quenching of HCl † (v ϭ 1) by CH 3 CHO was k 17e ϭ (4.8 Ϯ 1.2) ϫ 10 Ϫ11 cm 3 molecule Ϫ1 s Ϫ1 .

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