ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 35, Number 2
JKCSEZ 35(2)
April 20, 1991 

The complexation of N,N'-oxalylbis(salicylaldehyde hydrazone) (OBSH) with Zn (Ⅱ), Cd (Ⅱ), and Pb(Ⅱ) ions was studied by polarographic method in DMSO solution. The order of stability constants was Cd(Ⅱ) < Zn(Ⅱ) < pb(Ⅱ), and all heavy metal ions formed stable complex with OBSH ligand. The stability constants of complexation were measured at various temperatures. As the results, enthalpy and entropy changes of the complexation were distributed on the complex stabilities.