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Extraction of europium and cerium into nitrobenzene using synergistic mixture of hydrogen dicarbollylcobaltate and polyethylene glycol PEG 600

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Abstract

Solvent extraction of microamounts of europium and cerium by a nitrobenzene solution of hydrogen dicarbollylcobaltate (H+B−) in the presence of polyethylene glycol PEG 600 (L) has been investigated. The equilibrium data have been explained assuming that the complexes HL+, H2L2+ and ML3+ (M3+ = Eu3+, Ce3+; L = PEG 600) 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 EuL3+ and CeL3+ cationic complex species (L = PEG 600) in water-saturated nitrobenzene are the same.

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Acknowledgments

The present work was supported by the Czech Ministry of Education, Youth and Sports, Projects MSM 4977751303 and MSM 6076137307.

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

    P. Vaňura

  3. Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovský sq. 2, 162 06, Prague, Czech Republic

    Z. Sedláková

Authors
  1. E. Makrlík
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  2. P. Vaňura
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  3. Z. Sedláková
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Correspondence to E. Makrlík.

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Makrlík, E., Vaňura, P. & Sedláková, Z. Extraction of europium and cerium into nitrobenzene using synergistic mixture of hydrogen dicarbollylcobaltate and polyethylene glycol PEG 600. J Radioanal Nucl Chem 283, 157–161 (2010). https://doi.org/10.1007/s10967-009-0134-3

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  • DOI: https://doi.org/10.1007/s10967-009-0134-3

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