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CF3BrH2 reaction in shock waves

✍ Scribed by Yoshiaki Hidaka; Takuji Nakamura; Hiroyuki Kawano; Tohru Koike

Publisher
John Wiley and Sons
Year
1993
Tongue
English
Weight
551 KB
Volume
25
Category
Article
ISSN
0538-8066

No coin nor oath required. For personal study only.

✦ Synopsis

CFaBr-Hz mixtures highly diluted with Ar were studied by using a time-resolved IRemission of HBr and a gas-chromatography for reaction products. The temperature range covered was 1000-1600 K and the total pressure behind the reflected shock waves used was 1.2-2.6 atm. CF3H, C#6, and CzF4 were produced and the yields of these products were determined as a function of temperature. The main product under our experimental conditions was CF3H. The mechanism and the rate constants of CF3Br-Hz reaction at high temperatures were discussed. The experimental data was satisfactorily modeled using a 14reaction mechanism. Reaction (5) played an important role in the formation of CF3H together with reaction (4). ( 4)

The rate constant expression k5 = 2.2 X 1013 exp(-12 kcal/RT) cm3 mol-' s-l gave the best agreement between the calculated and observed results.

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