Effect of the nature of organic solvents on their interaction with metal halides |
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| Authors: | A. Alian M. Baraka H. Flex S. Hammouda |
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| Affiliation: | (1) Nuclear Chemistry Department, Atomic Energy Establishment, Nuclear Research Centre, Cairo, Egypt;(2) Chemistry Department, Faculty of Science, Cairo University, Egypt;(3) Medico-Legal Department, Ministry of Justice, Egypt |
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| Abstract: | The radioactive tracer technique was used for studying the extraction and predicting the best conditions of separation of arsenic halides by organic solvents of different nature. Sulphuric acid was found to enhance the extraction of arsenic halides. Extraction of AsI3 increases in the order cyclohexane 4 toluene 4 and is quantitative by benzene and nitrobenzene. For a given extraction increases in the order AsCl33< 3. Spectral measurements were made on some solvents; at maximum absorption there was a linearity between absorbance and AsI3 concentration up to 2·10−4 M for o-xylene and to 2.5·10−4 M for nitrobenzene. |
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