POLYMERIC COMPLEXES BETWEEN CADMIUM (II) AND 2-MERCAPTOETHANOL AND 3-MERCAPTO-1,2-PROPANEDIOL

Abstract
The complex formation between Cd(II) and 2-mercaptoethanol (MEL) and 3-mercapto-1, 2-propanediol (MPD) was studied by a pH-method at 25°C and in 0.5 M KNO3. The best representation of the complex formation is the ‘core + links’ series B(A5 B3)n, B being the metal ion and A the ligand; n tends to relatively high values. The reduced stability constants were found by comparing experimental data with theoretical curves.