Extraction of Cobalt(II) from Sulfate Medium with Substituted Salicylideneanilines

详细

The liquid-liquid extraction of cobalt(II) from sulfate media (Na₂SO₄) with substituted salicylideneanilines (SAN) is investigated. The stoichiometry of the extracted complexes formed in the organic phase is evaluated. It was found that the cobalt is coordinated with three ligands (L), and composition of the extracted complex is: CoL₂HL and cobalt is coordinated with two ligands (L) in case of substituted SA as CoL₂. The values of the extraction constants were calculated and analyzed in terms of the nature of the substituents.