SELECTIVE TRANSPORT AND EXTRACTION OF ALKALI METAL CATIONS (Na & K ) THROUGH CHLOROFORM LIQUID MEMBRANE BY DIETHYLENE GLYCOL MONOBUTYL ETHER AND DIETHYLENE GLYCOL DIBUTYL ETHER

Abstract
A liquid membrane containing diethylene glycol monobutyl ether (2) shows
specificity for K ion in transport while diethylene glycol dibutyl ether (1) was
selective for Na over K . As an extractant, ligand 2 exhibited pronounced extraction
selectivity for K over Na in comparison with ligand 1