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  Home > JCE Print > Journal of Chemical Education > Issues > 2001  > January  >
In the Laboratory
Indirect Potentiometric Titration of Fe(III) with Ce(IV) by Gran's Method
Maria da Conceição Silva Barreto, Luciana de Lucena Medeiros, and Paulo César de Holanda Furtado
Departamento de Química - CCEN, Universidade Federal da Paraiba, 58051-970 João Pessoa, PB, Brazil
Cover
January 2001
Vol. 78 No. 1
p. 91
Abstract
The indirect titration of Fe(III) ion with oxidizing agent is a good example of the application of Gran's method to a redox reaction because the Gran curve doesn't present linearity deviations as other redox systems do. It seems as if previous stages of reduction and rinsing of the reducing column leave the solution to be titrated with a high ionic strength, which does not vary considerably during the titration.
More Information
*  Citation
 Barreto, Maria da Conceição Silva; Medeiros, Luciana de Lucena; Furtado, Paulo César de Holanda. J. Chem. Educ. 2001 78 91.
*  Keywords
 Analytical Chemistry; Electrochemistry; Laboratory Instruction; Quantitative Analysis; Redox Reactions
*  History
 Created:
Last Updated:		 November 30, 2000
August 31, 2005
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