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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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    0339555 - ÚMCH 2010 RIV HU eng J - Journal Article
    Makrlík, E. - Vaňura, P. - Sedláková, Zdeňka
    Extraction of europium and cerium into nitrobenzene using synergistic mixture of hydrogen dicarbollylcobaltate and polyethylene glycol PEG 600.
    Journal of Radioanalytical and Nuclear Chemistry. Roč. 283, č. 1 (2010), s. 157-161. ISSN 0236-5731. E-ISSN 1588-2780
    Institutional research plan: CEZ:AV0Z40500505
    Keywords : extraction * europium * cerium
    Subject RIV: CD - Macromolecular Chemistry
    Impact factor: 0.777, year: 2010

    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.
    Permanent Link: http://hdl.handle.net/11104/0005737

     
     
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