I.R. spectra of lanthanide 8-hydroxyquinoline complexes
作者:H.F. Aly、F.M. Abdel Kerim、A.T. Kandil
DOI:10.1016/0022-1902(71)80538-9
日期:1971.12
Effect of the 18-crown-6 and benzo-18-crown-6 on the solvent extraction and separation of lanthanide(III) ions with 8-hydroxyquinoline
作者:M. Atanassova
DOI:10.1134/s0036023607080244
日期:2007.8
The synergistic solvent extraction of 13 lanthanides with mixtures of 8-hydroxyquinoline (HQ) and the crown ethers (S) 18-crown-6 (18C6) or benzo-18-crown-6 (B18C6) in 1,2-dichloroethane has been studied. The composition of the extracted species has been determined as LnQ(3) center dot S. The values of the equilibrium constant and separation factor have been calculated. Here, the effect of the synergistic agent (18C6 or B18C6) on the extraction process is discussed.