CF3Br-H2 reaction in shock waves

Article abstract of DOI:10.1002/kin.550251202

CF₃Br-H₂ mixtures highly diluted with Ar were studied by using a time-resolved IR-emission 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, C₂F₆, and C₂F₄ 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--H₂ reaction at high temperatures were discussed. The experimental data was satisfactorily modeled using a 14-reaction mechanism. Reaction (5) played an important role in the formation of CF₃H together with reaction (4).