1,1,2-Trichloroethane (1,1,2-TCA), a chlorinated aliphatic hydrocarbon, is a common groundwater pollutant. Microbial detoxification of 1,1,2-TCA has been studied. Ni supported on mesoporous silica (SBA-16) catalyzed hydrodechlorination of 1,1,2-trichloroethane has been reported. Rotational isomers of 1,1,2-trichloroethane in the gaseous and liquid states have been investigated by the infrared absorption spectra.