Studies on binary and ternary complexes of Co(II) and Ni(II) ions

Potentiometric investigations on the binary and ternary complexes of the type MA, MB and MAB have been carried out, where M(II)=Co(II) and Ni(II); A-iminodiacetic acid (IMDA) and B=oxydiacetic acid (ODAA). The formation constants and free energies of formation for binary and ternary complexes have been reported.