Gaseous C 2 H 5 Cl (ethyl chloride) was injected into the post-flame zone of a turbulent combustor, with equivalence ratios and residence times in the range of those encountered in hazardous waste incinerators. Temperatures below those normally associated with incineration were selected to simulate incinerator failure modes. Samples were withdrawn from the reactor and analyzed using a Fourier transform infrared spectrometer (FTIR) coupled to a longpath cell (60 cm base path length). For the highest-temperature case (T max =1225 K), destruction of the injected C 2 H 5 Cl was rapid, and the only observable product species were HCl, CO, H 2 O, and CO 2 . For cooler injection temperatures (T max =1012, 932 K), C 2 H 4 , C 2 H 2 , and C 2 H 3 Cl were observed as well, with a C 2 H 3 Cl/C 2 H 4 ratio between 0.25 and 0.5. C 2 H 5 Cl injection was simulated numerically, using the experimental temperature profiles and modeling the reactor as a plug-flow device. The reaction mechanism developed by Karra et al. was expanded to distinguish between chlorinated C 2 isomers. Rates for the modified reactions were chosen so that the combined reaction rate of the isomers was unchanged. This modification greatly improved the agreement between numerical and experimental results for C 2 H 3 Cl, as it opened new channels for its production.