Solvent extraction studies of phosphonium salts and their analytical applications : Differentiation of n- and isopropyl halides |
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Authors: | Paschoal Senise Luiz RM Pitombo |
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Institution: | Department of Chemistryy, Faculty of Philosophy, Sciences and Letter University of Sao Paulo Brazil |
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Abstract: | A test is described for identification and differentiation of n-propyl and isopropyl halides. The halide is reacted with triphenylphosphine to form the phosphoniun salt, and thiocyanate and copper or cobalt solutions are added, Extraction of the colored precipitate into a suitable solvent indicates n-propyl halide whereas isopropyl halides yield unextractable products. The test is applicable to solutions of each halide in the corresponding alcohol as well as to mixtures of both halides. |
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