Synthesis and extraction properties of 1,2-bis(amidoxime) derivatives

Abstract

Four 1,2-bis(amidoxime)s bearing benzoate groups were synthesized. Their complexing properties were studied by the liquid-liquid extraction of selected alkali (Na+ and K+) and transition metals (Hg2+, Cu2+, Pb2+ and Ni2+). It has been observed that all ligands show a high affinity to Cu2+ and Hg2+ ions, whereas almost no affinity to alkali metals.