Collect. Czech. Chem. Commun. 1992, 57, 1807-1810

Thermodynamic Functions of the Coordinated System Pb(II)-Oxalate

Jesús César Rodríguez Placeres, Graciliano Manuel Ruiz Cabrera, Ana María Alloza Moreno and Mariana Cuesta Sánchez

Department of Physical Chemistry, University of La Laguna, Tenerife, Canary Islands, Spain


The coordinated Pb(II)-oxalate system has been polarographically studied in aqueous medium at 15, 20, 30 and 35 °C. The formation of the coordinated species [Pb(ox)] and [Pb(ox)2]2-, their stability constants and the values of the ∆G0, ∆H0 and ∆S0 have been determined.