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Microdetermination of carbon and hydrogen in organofluorine compounds
Authors:AB Farag  ME Attia  HNA Hassan
Institution:Chemistry Department, Faculty of Science, Mansoura University, Mansoura, Egypt;National Research Centre, Dokki, Cairo, Egypt
Abstract:A simple method is described for the elimination of the interferences of fluorine in carbon and hydrogen determination of fluorinated organic compounds. Samples are burnt in a rapid flow of oxygen using the cobalto-cobaltic oxide, rapid straight empty tube, rapid empty tube of Belcher-Ingram, and flash combustion methods.The combustion products are passed through Anhydrone, silica gel-thorium nitrate, and soda asbestos absorption tubes, respectively. Carbon and hydrogen are determined gravimetrically. Acceptable results are generally obtained for a wide range of partially and highly fluorinated organic compounds.
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