Abstract
AbstractThe mixed ligand complexes of Cd(II) and Pb(II) with thiosulphate as a primary ligand and chloride, bromide of iodide (individually) as a secondary ligand have been polarographically, investigated at 30°C and at a constant ionic strength of μ = 1.0 M (NaClO4). Two mixed ligand complexes were formed with the Cd(II) ion: log β12 = 4.77, 5.30 and 6.78 for the chloride, bromide and iodide ions, respectively; and log β21 = 5.36, 5.04 and 6.22 for the same ions. For the Pb(II)‐Ts‐Cl system, only one mixed ligand complex was formed with a log stability constant log β21 =4.35. For the Pb(II)‐Ts‐Br system, three mixed ligand complexes are obtained with log β11 = 3.63, log β12 = 4.51 and log β21 = 4.85.
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