CONSTITUTION AND POLAROGRAPHIC-BEHAVIOR OF THE COBALT COMPLEX WITH 2,5-DIMERCAPTO-1,3,4-THIADIAZOLE

It has been found that in ammonia buffer and in the presence of 2,5-di mercapto-1,3,4-thiadiazole the polarographic wave of cobalt splits int o two due to the formation of a complex with the mercaptocompound The reason of the separation between the two waves is kinetically in natur e due to the super-imposition of chemical reaction of complex formatio n on the electrochemical process of cobalt ion discharge. The polarogr aphic data indicated that the complex contains two ligand molecules of 2,5-dimercapto-1,3,4-thiadiazole one molecule of NH3 and one of H2O: [Co(C2H2N2S3)2(NH3)(H2O)]2+. A process of catalytic hydrogen discarge is superimposed ou the complex wave.