“…Carbon disulfide has been reported to be more satisfactory than carbon tetrachloride when mercury salts are used (101). Perfluorinated hydrocarbons (54,171), amines (35,54,171), and ethers (54, 171) have found use in the preparation of perfluoroalkyl halides, but often these compounds are prepared in the absence of solvent (81,82,83,87,171).…”