Additive effect of CF3Cl on an oxidation reaction in shock waves. I. Study with H2-O2.
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概要
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Sample gases, H<SUB>2</SUB>–O<SUB>2</SUB>, H<SUB>2</SUB>–O<SUB>2</SUB>–CF<SUB>3</SUB>Cl, and CF<SUB>3</SUB>Cl, highly diluted with Ar were heated behind reflected shock waves over the temperature range 1400–2200 K and an additive effect of CF<SUB>3</SUB>Cl at various concentrations (0–0.5%) was studied by monitoring ultraviolet and visible emissions. At a temperature below 2200 K, C<SUB>2</SUB><SUP>*</SUP> and CH<SUP>*</SUP> species were found to be formed in the oxidation reaction of H<SUB>2</SUB> together with CF<SUB>3</SUB>Cl, but hardly formed in the thermal decomposition of CF<SUB>3</SUB>Cl. The addition of small and large amounts of CF<SUB>3</SUB>Cl increased and decreased, respectively, the intensity of OH<SUP>*</SUP> emission from the H<SUB>2</SUB>–O<SUB>2</SUB> mixture heated to a constant temperature. An ignition delay time at a fixed temperature above 1400 K was found to shorten with an increase in the concentration of CF<SUB>3</SUB>Cl. A brief discussion is given of the mechanism for the formation of the chemiluminescent species.
- 公益社団法人 日本化学会の論文
著者
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Suga Masao
Department of Chemistry, Faculty of Science, Ehime University
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Hidaka Yoshiaki
Department Of Chemistry Faculty Of Science Ehime University
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Kawano Hiroyuki
Department Of Applied Chemistry Faculty Of Engineering Oita University
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