Abstract
The linear solvation energy relationship (LSER) analysis of liquid–liquid distribution constants of 8-hydroxyquinoline and its derivatives has been performed in terms of hydrophobicity of solutes, property parameters of diluents in the organic phase, and ionic strength of the aqueous phase. The effect of temperature has been also discussed. The obtained correlations permit the evaluation of unknown values of distribution constants of 8-hydroxyquinoline and/or its derivatives in the given extraction system. The set of available systematic experimental data reflects only the effect of temperature on the distribution of 8-hydroxyquinoline and its 2-methyl derivative; however, the distribution constants of the other 8-hydroxyquinolinols were determined sporadically at the different ionic strengths of the aqueous phase and lower or higher temperatures than 298 K. The correlation describing the effect of temperature can be used for the raw estimation of unknown values of distribution constants of 8-hydroxyquino...
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