Email this article Thermochemistry of the Acid-Base Interactions in Aqueous Solutions of Isonicotinic and Picolinic Acids
- Authors: Lytkin A.I.1, Badelin V.G.2, Krutova O.N.1, Tyunina E.Y.2, Krutov P.D.1
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Affiliations:
- Ivanovo State University of Chemical Technology
- Krestov Institute of Solution Chemistry
- Issue: Vol 89, No 11 (2019)
- Pages: 2235-2238
- Section: Article
- URL: https://journals.rcsi.science/1070-3632/article/view/223159
- DOI: https://doi.org/10.1134/S1070363219110124
- ID: 223159
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Abstract
The calorimetric method was employed to measure the heat effects of the interaction of isonicotinic and picolinic acids with HNO3in aqueous solutions over different pH ranges at 298.15 K and ionic strengths of 0.5, 1.0, and 1.5 against potassium nitrate. The heat effects of stepwise dissociation of the acids were determined. The standard thermodynamic characteristics (ΔrH°, ΔrG°, ΔrS°, ΔCp°) of the acid-base reactions in aqueous solutions of isonicotinic and picolinic acids were calculated.
About the authors
A. I. Lytkin
Ivanovo State University of Chemical Technology
Email: kdvkonkpd@yandex.ru
Russian Federation, Ivanovo, 153045
V. G. Badelin
Krestov Institute of Solution Chemistry
Email: kdvkonkpd@yandex.ru
Russian Federation, Ivanovo, 153045
O. N. Krutova
Ivanovo State University of Chemical Technology
Author for correspondence.
Email: kdvkonkpd@yandex.ru
Russian Federation, Ivanovo, 153045
E. Yu. Tyunina
Krestov Institute of Solution Chemistry
Email: kdvkonkpd@yandex.ru
Russian Federation, Ivanovo, 153045
P. D. Krutov
Ivanovo State University of Chemical Technology
Email: kdvkonkpd@yandex.ru
Russian Federation, Ivanovo, 153045
