Thermochemistry of the Acid-Base Interactions in Aqueous Solutions of Isonicotinic and Picolinic Acids


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Resumo

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.

Sobre autores

A. Lytkin

Ivanovo State University of Chemical Technology

Email: kdvkonkpd@yandex.ru
Rússia, Ivanovo, 153045

V. Badelin

Krestov Institute of Solution Chemistry

Email: kdvkonkpd@yandex.ru
Rússia, Ivanovo, 153045

O. Krutova

Ivanovo State University of Chemical Technology

Autor responsável pela correspondência
Email: kdvkonkpd@yandex.ru
Rússia, Ivanovo, 153045

E. Tyunina

Krestov Institute of Solution Chemistry

Email: kdvkonkpd@yandex.ru
Rússia, Ivanovo, 153045

P. Krutov

Ivanovo State University of Chemical Technology

Email: kdvkonkpd@yandex.ru
Rússia, Ivanovo, 153045


Declaração de direitos autorais © Pleiades Publishing, Ltd., 2019

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