Abstract
Dechlorination of KC600 as PCB mixtures by using K-Na alloy was investigated. Dechlorination yield reached 99.999914 % when PCB was contacted in cyclohexane with K-Na alloy under argon atmosphere at room temperature for 30 minutes. The initial and final concentrations of PCB were 7, 900 mg/l and 0.0068 mg/l, respectively. Chlorine atoms in PCB changed to inorganic chloride ion at a yield of 99.9999 %. Main reaction products were biphenyl, cyclohexylbenzene, and dicyclohexyl. This result suggests that this reaction is reductive dechlorination.
