Enthalpies of Dissolution of Crystalline Naproxen Sodium in Water and Potassium Hydroxide Aqueous Solutions at 298 K
- Authors: Lytkin A.I.1, Chernikov V.V.1, Krutova O.N.1, Bychkova S.A.1, Volkov A.V.1, Skvortsov I.A.1
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Affiliations:
- Ivanovo State University of Chemistry and Technology
- Issue: Vol 92, No 3 (2018)
- Pages: 411-414
- Section: Chemical Thermodynamics and Thermochemistry
- URL: https://journals.rcsi.science/0036-0244/article/view/169915
- DOI: https://doi.org/10.1134/S0036024418030160
- ID: 169915
Cite item
Abstract
The enthalpies of dissolution of crystalline naproxen sodium in water and aqueous solutions of KOH at 298.15 K are measured by direct calorimetric means in a wide range of concentrations. The acid–base properties of naproxen sodium at ionic strength I ~ 0 and I = 0.1 (KNO3) and a temperature of 298.15 K are studied by spectrophotometric means. The concentration and thermodynamic dissociation constants are determined. The standard enthalpies of the formation of naproxen sodium and the products of its dissociation in aqueous solution are calculated.
Keywords
About the authors
A. I. Lytkin
Ivanovo State University of Chemistry and Technology
Email: kdvkonkpd@yandex.ru
Russian Federation, Ivanovo, 153000
V. V. Chernikov
Ivanovo State University of Chemistry and Technology
Email: kdvkonkpd@yandex.ru
Russian Federation, Ivanovo, 153000
O. N. Krutova
Ivanovo State University of Chemistry and Technology
Author for correspondence.
Email: kdvkonkpd@yandex.ru
Russian Federation, Ivanovo, 153000
S. A. Bychkova
Ivanovo State University of Chemistry and Technology
Email: kdvkonkpd@yandex.ru
Russian Federation, Ivanovo, 153000
A. V. Volkov
Ivanovo State University of Chemistry and Technology
Email: kdvkonkpd@yandex.ru
Russian Federation, Ivanovo, 153000
I. A. Skvortsov
Ivanovo State University of Chemistry and Technology
Email: kdvkonkpd@yandex.ru
Russian Federation, Ivanovo, 153000