Abstract
Coprecipitation of 137Cs and 85Sr with [Na(18-crown-6]BPh4 solid phase from aqueous, aqueous-ethanolic, and alkaline solutions is studied. 137Cs and 85Sr cocrystallize with [Na(18-crown-6]BPh4 from aqueous and aqueous-ethanolic solutions. The cocrystallization coefficients D of 137Cs and 85Sr from aqueous solutions are 2.6±0.5 and 3.3±0.3, respectively. For aqueous-ethanolic solutions, the corresponding values are 4.4±0.5 and 3.4±0.4. In the alkaline solutions (0.1 and 1 M NaOH), 54–74% of 137Cs and 37–51% of 85Sr pass into the [Na(18-crown-6]BPh4 solid phase, depending on the crown ether concentration in the system.
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Translated from Radiokhimiya, Vol. 47, No. 3, 2005, pp. 257–260.
Original Russian Text Copyright © 2005 by Kulyukhin, Konovalova, Rumer, Kamenskaya, Mikheev.
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Kulyukhin, S.A., Konovalova, N.A., Rumer, I.A. et al. Coprecipitation of Trace Amounts of 137Cs and 85Sr with [Na(18-Crown-6]BPh4 from Neutral and Alkaline Solutions. Radiochemistry 47, 284–287 (2005). https://doi.org/10.1007/s11137-005-0088-4
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DOI: https://doi.org/10.1007/s11137-005-0088-4