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Extraction of europium and americium into nitrobenzene by using synergistic mixture of hydrogen dicarbollylcobaltate and tetraisopropyl methylene diphosphonate

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Abstract

Extraction of microamounts of europium and americium by a nitrobenzene solution of hydrogen dicarbollylcobaltate (H+B−) in the presence of tetraisopropyl methylene diphosphonate [T(iPr)MDP, L] has been investigated. The equilibrium data have been explained assuming that the complexes HL+, HL2 +, ML2 3+, ML3 3+ and ML4 3+ (M3+ = Eu3+, Am3+) are extracted into the organic phase. The values of extraction and stability constants of the species in nitrobenzene saturated with water have been determined. It was found that the stability constants of the corresponding complexes EuL n 3+ and AmL n 3+, where n = 2, 3, 4 and L is T(iPr)MDP, in water-saturated nitrobenzene are comparable.

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Acknowledgement

This work was supported by the Czech Ministry of Education, Youth and Sports, Projects MSM 4977751303 and MSM 6046137307.

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Authors and Affiliations

  1. Faculty of Applied Sciences, University of West Bohemia, Husova 11, 306 14, Pilsen, Czech Republic

    E. Makrlík

  2. Faculty of Chemical Engineering, Department of Analytical Chemistry, Institute of Chemical Technology, Prague, Technická 5, 166 28, Prague, Czech Republic

    P. Vaňura

  3. Nuclear Research Institute, 250 68, Řež, Czech Republic

    P. Selucký

Authors
  1. E. Makrlík
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  2. P. Vaňura
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  3. P. Selucký
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Correspondence to E. Makrlík.

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Makrlík, E., Vaňura, P. & Selucký, P. Extraction of europium and americium into nitrobenzene by using synergistic mixture of hydrogen dicarbollylcobaltate and tetraisopropyl methylene diphosphonate. J Radioanal Nucl Chem 283, 727–733 (2010). https://doi.org/10.1007/s10967-009-0404-0

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