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  Home > JCE Print > Journal of Chemical Education > Issues > 2004  > February  >
In the Laboratory
Electrochemical Removal of Metal Cations from Wastewater Monitored by Differential Pulse Polarography
Delphine Bruce, Alexander Kuhn, and Neso Sojic
Lab d'Analyse Chimique par Reconnaissance Moléculaire, Ecole Nationale Supérieure de Chimie et de Physique de Bordeaux, 33607 Pessac, France
Cover
February 2004
Vol. 81 No. 2
p. 255
Abstract
A simple experiment is described that exposes students to two important aspects of electrochemistry: its potential use in industrial technologies and its application for solving analytical problems. To illustrate these two points we have chosen to examine the electrolytic elimination of metal ions (Cd2+, Cu2+, Zn2+) from an aqueous solution. The metal ion concentrations are monitored by differential pulse polarography. This experiment is well suited to explain the connection between thermodynamics and kinetics based on the quantitative evolution of the different metal concentrations.
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*  Citation
 Bruce, Delphine; Kuhn, Alexander; Sojic, Neso. J. Chem. Educ. 2004 81 255.
*  Keywords
 Analytical Chemistry; Cadmium; Copper; Electrochemistry; Environmental Chemistry; Green Chemistry; Laboratory Instruction; Water / Water Chemistry; Zinc
*  History
 Created:
Last Updated:		 January 5, 2004
February 25, 2005
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