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  Home > JCE Print > Journal of Chemical Education > Issues > 2000  > April  >
Information, Textbooks, Media, Resources
Abnormal Decomposition Potentials Reconsidered--A Corrected Treatment
Cynthia G. Zoski
Department of Chemistry, University of Rhode Island, Kingston, RI 02881

Allen J. Bard
Department of Chemistry & Biochemistry, University of Texas at Austin, Austin, TX 78712

Cover
April 2000
Vol. 77 No. 4
p. 526
Abstract
The concept of "abnormal decomposition potential" as described by Liang et al. (J. Chem. Educ. 1999, 76, 444) is imprecise and of little relevance in modern electrochemistry. Complete current- potential curves can be calculated and they show why such decomposition potentials are smaller than standard potentials. Disproportionation reactions are not needed to explain this phenomenon, which is the natural consequence of current-vs-potential behavior, and are of little importance in understanding the redox chemistry of halogen acids at concentrations at or above 10-3 M levels.
More Information
*  Citation
 Zoski, Cynthia G.; Bard, Allen J. J. Chem. Educ. 2000 77 526.
*  Keywords
 Aqueous Solution Chemistry; Electrochemistry; Redox Reactions; Textbooks; Physical Chemistry
*  History
 Created:
Last Updated:		 March 2, 2000
April 15, 2005
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