Analysis of diluent effects and estimation of distribution constants of 8-hydroxyquinoline and its derivatives in extraction systems

Autor: Wiesław Apostoluk, Barbara Wionczyk
Rok vydání: 1997
Předmět:
Zdroj: Hydrometallurgy. 45:73-81
ISSN: 0304-386X
DOI: 10.1016/s0304-386x(96)00082-5
Popis: The effect of diluents upon distribution constants of 8-hydroxyquinoline and its 2- and 4-methyl derivatives in two-phase liquid systems has been analyzed using the Kamlet and Taft model. These constants for 5-methyl-8-hydroxyquinoline and 7-(4',5',7',7'-tetramethyl-1'-octenyl)-8-hydroxyquinoline in the chloroform-water system have been also considered. The derived correlations are statistically valid and can be useful for: (1) prediction of distribution constants of 8-hydroxyquinoline and its derivatives in the extraction systems; (2) discussion of solute-solvent interactions in the organic phase; (3) prediction of the distribution constants of appropriate copper(II) complexes.
Databáze: OpenAIRE