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| Format: | Artículo científico |
| Language: | en |
| Published: |
Sociedad Química de México
2003
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| Online Access: | https://www.redalyc.org/articulo.oa?id=47547301 |
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Table of Contents:
- Potentiometric Analysis of a Reaction System of Organic Acids Agustín Jaime Castro Montoya Manuel Herrera Solano Pedro Alberto Quintana Hernández Medardo Serna González Multidisciplinaria (Ciencias Naturales y Exactas) Acid Base Chemistry Quantitative Analysis Potentiometric Titration A new potentiometric titration method for the quantitativeanalysis of a reaction system of diprotonic organic acids is presented.The method uses the individual potentiometric titration data for calculatingthe dissociation constants. With this information a set of n 1 linear equations and n 1 unknowns is solved; n is the numberof organic acids present in the reaction mixture. This method wasapplied to tartaric acid process production from maleic acid. In thisprocess two successive reactions take place: firstly the maleic acidepoxydizes to epoxysuccinic acid and secondly the epoxysuccinicacid hydrolyzes to tartaric acid, leaving three organic acids present inthe reaction system. It is necessary to quantify the concentration of allthree acids in order to determine the progress of the reaction. Thispaper describes a fast, economical and easy to carry out analyticalmethod for determining the concentration of all three acids simultaneouslyby potentiometric titration. 2003 artículo científico 1870-249X https://www.redalyc.org/articulo.oa?id=47547301 en http://www.redalyc.org/revista.oa?id=475 Journal of the Mexican Chemical Society application/pdf Sociedad Química de México Journal of the Mexican Chemical Society (México) Num.3 Vol.47