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Extraction of lead with nitrobenzene solution of strontium bis-1,2-dicarbollylcobaltate in the presence of 15-crown-5

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Abstract

From extraction experiments and γ-activity measurements, the extraction constant corresponding to the equilibrium Pb2+(aq)+SrL2 2+(nb)⇆PbL2 2+(nb)+Sr2+(aq) taking place in the two-phase water-nitrobenzene system (L=15-crown-5; aq = aqueous phase, nb = nitrobenzene phase) was evaluated: logK ex (Pb2+,SrL2 2+)=3.0. Further, the stability constant of the PbL2 2+ complex in nitrobenzene saturated with water was calculated: log βnb(PbL 2+2 )=17.8

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Author notes

  1. E. Makrlík

    Present address: , 341 42, Kolinec 250, Czech Republic

Authors and Affiliations

  1. Faculty of Education, Charles University, 116 39, Prague, Czech Republic

    E. Makrlík

  2. Prague Institute of Chemical Technology, 166 28, Prague, Czech Republic

    P. Vańura

  3. National Radiation Protection Institute, 100 00, Prague, Czech Republic

    V. Bečková

Authors
  1. E. Makrlík
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  2. P. Vańura
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  3. V. Bečková
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Makrlík, E., Vańura, P. & Bečková, V. Extraction of lead with nitrobenzene solution of strontium bis-1,2-dicarbollylcobaltate in the presence of 15-crown-5. J Radioanal Nucl Chem 241, 659–661 (1999). https://doi.org/10.1007/BF02347229

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  • DOI: https://doi.org/10.1007/BF02347229

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