Formation and stability of heterobinuclear complexes of diethylene lrialmine pentaacetic acid (DTA) with mercury and some other metalions

Abstract

Equilibrium studies on heterobinuclear complexes of the ligand diethylenetriaminepenta acetic acid (DTPA) with CuII -HgII. ZnII -HgII and CdII-HgII have been carried out pH-meterically at 250 C and at constant ionic strength, I=0.1 M (NaNO3) . The overall stability constant (logβ ) have been evaluated and heterobinuclear complex species of the type MHg DTPA have been detected.