Extraction separation of strontium and yttrium radionuclides by hydrogen heptachlorodicarbollylcobaltate in the presence of benzo-15-crown-5 |
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| Authors: | P Vaňura V Jedináková-K?í?ová A Yoshioka |
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| Institution: | (1) Department of Analytical Chemistry, Insitute of Chemical Technology, Technická 5, 166 28 Prague 6, Czech Republic;(2) Osaka University, 5350002 Osaka, Japan |
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| Abstract: | Extraction of strontium and yttrium by the nitrobenzene solution of H+-form of heptachloro-bis-1,2-dicarbollylcobaltate (H+B–) in the presence of benzo-15-crown-5 (B15C5, L) has been investigated. The presence of B15C5 leads to a great synergistic effect for the extraction of strontium and an antagonistic effect for the extraction of yttrium. The extraction constants of Sr2+ complexes of B15C5 were determined. The separation factor a(Sr/Y) in the system with B15C5 presents the same order of magnitude as that for 15C5. |
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