The Formation Constants of Metal Acetate Complexes. III. Polarographic Determination of the Formation Constants of Acetatocadmium(II) and Acetatocobalt(II) Complexes

Abstract

Abstract The formation constants of acetatocadmium-(II) and acetatocobalt(II) complexes were determined at ionic strength of 0.2 at 15, 25 and 35°C with the procedure that is based on the polarographic measurement of the sum of the equilibrium concentrations of the hydrated metal ions and the metal acetate complexes in the substitution reaction involving EDTA complexes. The resulting formation constants KCdOAc and KCoOAc are 27 and 2.1 at 15°C, 16 and 0.6 at 25°C and 20 and 0.6 at 35°C, respectively.