Complex plane and DC polarographic studies of lead (11) ethanolamine (mono-D1 and TR1-) systems

Abstract

A detailed investigation on the polarographic (d.c. and complex plane) behavior of lead ion in sodium perchlorate, potassium nitrate, potassium chloride, ethanolammonium (mono-, di-, and tri-) perchlorates and the respective ethanolamine mixtures has been presented. Except in a few cases (triethanolamine perchlorate–triethanolamine mixtures, sodium perchlorate–triethanolamine mixtures, and potassium chloride–triethanolamine mixtures), the reduction of lead ion occurs reversibly. That is, it is not possible on the basis of d.c. polarography to find out the subtle differences in the degree of reversibility. It is also not possible with the help of d.c. polarographic methods to observe the reactant adsorption effects noticed in the present work. For this purpose, the complex plane polarographic method is employed. The various aspects presented in this thesis are:

adsorption effects, determination of small values of ?, determination of g?, double layer capacity measurements in the presence of depolarizer, phase-sensitive a.c. polarograms, theoretical calculation of ?, q, ?, and C_s, and the nature of complex formation.