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Extraction of Ba2+, Pb2+ and Cd2+ into nitrobenzene by using strontium dicarbollylcobaltate in the presence of tetramethyl p-tert-butylcalix[4]arene tetraketone

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Abstract

From extraction experiments and γ-activity measurements, the exchange extraction constants corresponding to the general equilibrium M2+(aq)+SrL2+(nb)⇔ML2+(nb)+Sr2+(aq) taking place in the two-phase water-nitrobenzene system (M2+ = Ba2+, Pb2+, Cd2+; L = tetramethyl p-tert-butylcalix[4]arene tetraketone; aq = aqueous phase, nb = nitrobenzene phase) were evaluated. Moreover, the stability constants of the ML2+ complexes in water saturated nitrobenzene were calculated; they were found to increase in the order Ba2+<Cd2+<Pb2+.

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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, Technická 5, 166 28, Prague 6, Czech Republic

    J. Budka & P. Vaňura

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

    P. Selucký

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

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Makrlík, E., Budka, J., Vaňura, P. et al. Extraction of Ba2+, Pb2+ and Cd2+ into nitrobenzene by using strontium dicarbollylcobaltate in the presence of tetramethyl p-tert-butylcalix[4]arene tetraketone. J Radioanal Nucl Chem 277, 487–490 (2008). https://doi.org/10.1007/s10967-007-7110-6

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  • DOI: https://doi.org/10.1007/s10967-007-7110-6

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