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Solvent extraction of microamounts of strontium and barium from water into nitrobenzene using hydrogen dicarbollylcobaltate in the presence of benzo-18-crown-6

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Abstract

Extraction of microamounts of strontium and barium by a nitrobenzene solution of hydrogen dicarbollylcobaltate (H+B−1) in the presence of benzo-18-crown-6 (B18C6, L) has been investigated. The equilibrium data been explained assuming that the complexes HL+, ML2+, ML 2+2 and MHL 3+2 (M2+ = Sr2+, Ba2+) are extracted into the organic phase. The values of extraction and stability constants of the species in nitrobenzene saturated with water have been determined.

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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. Prague Institute of Chemical Technology, Technická 5, 166 28, Prague, Czech Republic

    P. Vaňura

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

    P. Selucký

  4. Institute of Inorganic Chemistry, Academy of Sciences of the Czech Republic, 250 68, Řež, Czech Republic

    J. Hálová

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

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Makrlík, E., Vaňura, P., Selucký, P. et al. Solvent extraction of microamounts of strontium and barium from water into nitrobenzene using hydrogen dicarbollylcobaltate in the presence of benzo-18-crown-6. J Radioanal Nucl Chem 274, 625–629 (2007). https://doi.org/10.1007/s10967-007-6936-2

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  • DOI: https://doi.org/10.1007/s10967-007-6936-2

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