Studies on chelating resins-II Determination of the protonation constants of a chelating resin containing iminodiacetic acid groups.
A previously derived equation for the calculation of the protonation constants of immobilized ligands is used for description of the protonation equilibria of a chelating resin containing iminodiacetic acid groups. The following values were obtained for the three steps of protonation: logK(1) = 9.12 +/- 0.05; logK(2) = 3.10 +/- 0.07; logK(3) = 1.44 +/- 0.03.
Szabadka
O
O
Department of Analytical Chemistry, University of Chemical Engineering, P.O. Box 28, Veszprém, Hungary.