Solvent extraction of copper(II) and zinc(II) with 1,5-diphenylcarbazone

Abstract

The extraction characteristics of 1,5-diphenylcarbazone and its complexes with the bivalent metal ions copper(II) and zinc(II) in an isobutyl methyl ketone-water system have been studied and the extraction curves of these metal complexes have also been obtained. The copper(II) complex is extracted from a more acidic solution than is the zinc(II) complex. The extraction equilibria have been examined and the extraction constants determined. The spectral properties of the complexes have also been determined and the application of the reagent to the determination of copper and zinc is suggested.