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  Home > JCE Print > Journal of Chemical Education > Issues > 1997  > November  >
In the Laboratory
Rigorous Potentiometric Determination of Metal Complexes Stability Constants: An Undergraduate Laboratory Practice
Graciela M. Escandar and Luis Federico Sala*
Departamento de Química Física, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531, Rosario 2000, Argentina
Cover
November 1997
Vol. 74 No. 11
p. 1329
Abstract
In the present work an undergraduate laboratory practice is described corresponding to both experimental and computational methods used in potentiometric equilibrium constants determinations. As an example of these determinations the system formed by Cu(II) and D-galacturonic acid was selected. Both the deprotonation constant for the ligand and the equilibrium constants for the metal chelates were determined by using the program BEST.
More Information
*  Citation
 Sala, Luis Federico, Escandar, Graciela M. J. Chem. Educ. 1997 74 1329.
*  Keywords
 Analytical Chemistry, Equilibrium, Metals, and Electrochemistry
*  History
 Created:
Last Updated:		 July 26, 1999
June 23, 2005
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