The pyrolysis of a 2.1 chlorobenzene-Ne mixture was studied behind reflected shock waves over the temperature range 1580-2000 K and total pressures of 0.30-0.50 atm. Time dependent reactant and major product profiles were obtained using time-of-flight mass spectrometry. Acetylene, hydrogen chloride, and diacetylene are the major products. Minor products include C6,H2, benzene, and C8H2. The only radical detected is phenyl which appears at early reaction times. HCl is the only chlorine containing product recorded; Cl atoms, Cl2, and species with m/e 114 were not detected and were assumed to be below the TOF detectability limit which is approximately 10#x2212;2mol/cm3.
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