COMPLEX FORMATION OF CADMIUM (II) WITH 1-METHYL-2-MERCAPTOIMI- DASEZOLE IN WATER- ALCOHOL SOLUTIONS
The process of complexation of cadmium(II) with 1-methyl-2-mercaptoimidazole (1-M-2-MI) in water-methanol and wa- ter-ethanol solutions of variable composition at 298К wasstudied by potentiometric titration. It was shown that as the concentration of the non-aqueous component in the solutionincreased, the potential of the cadmium electrode naturally increased. It was found that a stepwise complexation pro-ceeded in the solution with the formation of four complex particles. The stability constants were determined for eachcomplex form. It was found that the stability of 1-methyl-2- mercaptoimidazole complexes increased with increasing con-tent of the non-aqueous component in the solution