Studies in the Extraction of Cadmium with Some Sulfur Ligands

Abstract

Extraction of cadmium(II) with 2-(2-pyridyl)-2,3-dihydrobenzothiazole, O,O′-diethyl hydrogenphosphorodithioate, 1-phenyl-3-methyl-4-thiobenzoyl-5-pyrazolone, N-(2-naphthyl)mercaptoacetamide, and 2-(o-hydroxyphenyl)-2,3-dihydrobenzothiazole has been studied. Extraction constants (Kex) have been calculated for these systems. These reagents have been compared with some common reagents used for the extraction of cadmium. Separation factors have been calculated for the separation of cadmium from zinc with some of these reagents.