Polarographic Study of Ternary Complexes of Cd (II) – Malonamic and Carboxylic Acid
1Department of Chemistry Shri, Chitra Gupta (P.G.) College, Mainpuri - 205 001 (India).
2Department of Chemistry, School of Chemical Sciences, St. John's College, Agra - 2 (India).
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The mixed system Cd (II) Malonamate-Oxalate has been studied polarographically at constant ionic strongth μ=2.0 (NaNO3) and constant pH 5.6. The reduction of the complexes at d.m.e is reversible and diffusion - controlled. Two mixed complexes viz [Cd(OX) (EPM)2]2- and [Cd (OX)2 (EPM]3- are formed. Their overall stability constant at 25°C are log b12= 9.95 and log b21 = 8.75 respectively. Simple complexes of Cd (II) Malonamate and Oxalate has been studied polarographically but the mixed complexes with the said ligands have not been reported so far. With this end in view, the present study has been under taken.
KEYWORDS:Polarography-Oxalic acid and Malonamic acid
