Multinuclear complexation equilibria of manganese(II), copper(II), zinc(II) and cadmium(II) with L-2-amino-3-methylbutanoic acid (valine) and nitrilotriacetic acid

Abstract

Equilibrium studies on mixed ligand-mixed metal complexes of manganese(II), copper(II), zinc(II) and cadmlum(II) with nitrilotriacetic acid and L-2-amino-3-methylbutanoic acid (valine) has been performed by potentiometric method. The stability constants of the complexes are determined in aqueous solution at 37 ± 1° (I = 0.1 M NaNO 3 ). The calculations have been made using SCOGS computer program.