Study on Species of Heavy Lanthanides(III) Chelates Extracted into Organic Phase with 5,7-Dichloro-8-hydroxyquinoline |
| D. Czakis-Sulikowska, A. Malinowska, N. Pustelnik and B. Kuźnik Insitute of General and Ecological Chemistry, Technical University of Łódź, Żwirki 36, 90-924 Łódź, Poland |
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| The nature of species formed in the extraction of lanthanides Ln(III) (where Ln = Tb, Dy, Ho, Er, Tm and Yb) with 5,7-dichloro-8-hydro xyquinoline (HL) in CHCl3 from water or water-methanol phase was examined. It was stated that during the extraction from water phase the chelates LnL3 (Tb, Tm), seven-coordinated self-adducts LnL3 ÷ HL (Er, Ho) or both types of these species (Dy, Yb) were extracted. In the presence of methanol (MeOH) in the aqueous phase the eight-coordinated mixed species of the type LnL3·2MeOH were observed. |
| DOI: 10.12693/APhysPolA.90.427 PACS numbers: 81.10.Dn, 82.30.Hk |