title: Polarographic and potentiometric determination of the stability constants of lead, cadmium and zinc complexes with dithiocarbaminoacetic acid.
abstract: The stability constants of lead, cadmium and zinc dithio-carbaminoacetic acid (TCA) complexes have been determined. Lead and cadmium TCA complexes were studied by means of a polarographic method. A competitive polarographic method was used for the study of zinc TCA complexes. Zinc and cadmium TCA complexes were also studied potentiometrically with an amalgam electrode. The stability constants found were: lead, log beta(2) = 13.2; cadmium, log beta(1) = 5.4 (pot.), log beta(2) = 9.3 (pot.), log beta(3) = 13.7 (pot.), 13.6 (pol.); zinc, logbeta(1) = 3.4(pot.), <3.8(pol.), logbeta(2) = 6.6 (pot.), 6.4(pol.), logbeta(3) = 8.9 (pot.), 9.3 (pol.).
authors.affiliation: Bulgarian Academy of Sciences, Institute of General and Inorganic Chemistry, Sofia 13, Bulgaria.
authors.forename: O
authors.initials: O
authors.lastname: Budevsky
authors.forename: E
authors.initials: E
authors.lastname: Russeva
authors.forename: T
authors.initials: T
authors.lastname: Sotyrova