Studies on the extraction of vanadium [V] -dihalooxinate complexes

ABSTRACT

The formation and extraction of vanadium [V]-5,7-dihalooxinate complexes were investigated. The optimum pH for the extraction of both the complexes was found to be 2.5 - 4.5. Polymerisation studies revealed that the complex contains monomeric vanadium. The extracting species is found to have vanadium reagent alcohol in the ratio 121. Thus the species was assumed to be an ester as VO [OR] L2 [L being the anion of reagent]. The conditional extraction constants were determined. The similarities and differences of these ligands in their behaviour of complex formation and extraction were discussed at the end