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Journal of Radioanalytical Chemistry

, Volume 49, Issue 2, pp 185–188 | Cite as

Selective cation exchange isolation of radioactive mercury from cobalt, scandium and europium

  • M. M. El-Dessouky
Article

Abstract

Distribution of Hg2+, Co2+, Sc3+ and Eu3+ between the cation exchanger Dowex-50X8, [H+] (100–200 mesh), and 1M HNO3 solution containing different benzylamine (BA) concentrations has been studied. The distribution coefficient, D, for Co2+, Sc3+ and Eu3+ is very small and does not vary seriously with the BA concentration. It is also found that Hg2+ is highly taken by the resin from the media studied. In this respect, D increases with increasing BA concentration to reach a maximum at 0.5% BA in 1M HNO3. This behaviour is explained by the exchange of molecular species between the cation exchanger and the aqueous phase. Based on the results, a radiochemical separation procedure for the selective isolation of Hg2+ from Co2+, Sc3+ and Eu3+ has been developed. The radiochemical purity is not less than 99.8% and the chemical yield more than 95% for the separated203Hg.

Keywords

Cation Exchanger Distribution Coefficient Scandium Chemical Yield Selective Separation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Akadémiai Kiadó 1979

Authors and Affiliations

  • M. M. El-Dessouky
    • 1
  1. 1.Chemistry Department, Faculty of ScienceCairo UniversityCairo(Egypt)

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