Chemical Decomposition of Chlorofluorocarbons by Reductive Dehalogenation Using Sodium Naphthalenide

Abstract All halogen atoms in 1,1,2-trichloro-1,2,2-trifluoroethane (F-113) were removed in the form of chloride and fluoride ions by the treatment with sodium naphthalenide (1.5 equiv. per halogen atom) in THF at 150 °C for 50 min in the presence of 10 vol% tetraethyleneglycol dimethylether. Similar treatment was also efficacious in the dehalogenation of F-22 and F-12.