Investigation of the extraction equilibrium of the vanadium-par complex between aqueous medium and a chloroform solution of a quaternary ammonium chloride.
Partition of the VO(2)L(-) complex (formed from vanadium(V) and PAR [4-(2-pyridylazo)-resorcinol]) between water and a chloroform solution of TOMACl (trioctylmethylammonium chloride) has been studied. The V-PAR-TOMACl complex extracted into the chloroform phase was found to be 1:1:1 in composition. The extraction equilibrium constant is log K = 4.0 +/- 0.1.
Papp
E
E
Department of Analytical Chemistry, University of Chemical Engineering, Veszprém, Hungary.
Inczédy
J
J