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Coprecipitation of 60Co from aqueous solutions with solid phases of various coordination compounds

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Abstract

Coprecipitation of 60Co from aqueous solutions with solid phases of various coordination compounds was studied. Microamounts of 60Co do not noticeably coprecipitate with solid phases of [M(CE)]BPh4 (M = Na+, Cs+; CE = 12-crown-4, 15-crown-5, 18-crown-6) and of CsBPh4. 60Co can be efficiently removed from aqueous solutions containing 0.1 and 4.0 M NaNO3, 0.1 M EDTA, or 1.0 M H2C2O4 by coprecipitation with the KFe[Fe(CN)6] solid phase formed by successive addition of K4[Fe(CN)6] and Fe(NO3)3 into these solutions. The degree of 60Co removal varies from ∼80 to ∼99.9% depending on the experimental conditions. This procedure allows simultaneous removal of 137Cs from the same solution with no less than 97% efficiency.

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Authors and Affiliations

  1. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninskii pr. 31, block 4, Moscow, 119071, Russia

    S. A. Kulyukhin, N. A. Konovalova, M. P. Gorbacheva, L. V. Mizina & I. A. Rumer

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  1. S. A. Kulyukhin
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  2. N. A. Konovalova
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  3. M. P. Gorbacheva
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  4. L. V. Mizina
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  5. I. A. Rumer
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Correspondence to S. A. Kulyukhin.

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Original Russian Text © S.A. Kulyukhin, N.A. Konovalova, M.P. Gorbacheva, L.V. Mizina, I.A. Rumer, 2013, published in Radiokhimiya, 2013, Vol. 55, No. 2, pp. 131–135.

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Kulyukhin, S.A., Konovalova, N.A., Gorbacheva, M.P. et al. Coprecipitation of 60Co from aqueous solutions with solid phases of various coordination compounds. Radiochemistry 55, 175–180 (2013). https://doi.org/10.1134/S1066362213020070

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  • DOI: https://doi.org/10.1134/S1066362213020070

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