Published 1992 | Version v1
Journal article

Solvent extraction on rare earth elements with hexaaza-18-crown-6 and erythrosine A

  • 1. Uniwersytet Adama Mickiewicza, Poznan (Poland). Inst. Chemii

Description

The liquid-liquid extraction of ion-pair complexes of rare earth elements with 1,4,7,10,13,16-hexaazacyclooctadecane (HA18C6) is described. The extraction constants (Dc) are reported. The following stoichiometry of extracted ion associate is proposed: Ln(OH)HA18C62+-erythrosine A2-. In strongly alkaline solutions (0.5 mol l-1 NaOH) significant differences in ion extraction efficiency of particular lanthanoids are observed. Therefore some rare earths (Pr3+, Nd3+, Sm3+, Eu3+, Gd3+, Tb3+) may be selectively extracted in presence of others (Y3+, Ho3+, Er3+, Tm3+, Yb3+, Lu3+). (author). 16 refs, 5 figs, 4 tabs

Additional details

Publishing Information

Journal Title
Chemia Analityczna
Journal Volume
37
Journal Issue
4
Journal Page Range
p. 427-435.
ISSN
0009-2223
CODEN
CANWAJ

Optional Information

Contract/Grant/Project number
Problem MRI 32.7