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Thermodynamic characteristics of the acid–base equilibria of ethylenediamine-N,N′-diglutaric acid in aqueous solutions using calorimetric data


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Abstract

The enthalpies of reaction of betaine group neutralization of ethylenediamine-N,N'-diglutaric acid (H4L) at 298.15 K and at different values of ionic strength of 0.1, 0.5, 1.0 (KNO3) is measured by direct calorimetry. The standard thermodynamic characteristics of the protolytic equilibria of H4L are calculated.

About the authors

S. N. Gridchin

Ivanovo State University of Chemistry and Technology

Author for correspondence.
Email: sergei_gridchin@mail.ru
Russian Federation, Ivanovo, 153000

V. M. Nikol’skii

Tver State University

Email: sergei_gridchin@mail.ru
Russian Federation, Tver, 170100

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