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Thermochemical Study of the Reactions of Acid–Base Interaction in an Aqueous Solution of β-Aminobutyric Acid

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Abstract

The enthalpies of interaction between β-aminobutyric acid and HNO3 and KОН solutions are measured calometrically in different pH ranges, a temperature of 298.15 K and ionic strengths of 0.25, 0.5, and 0.75 (KNO3). The enthalpies of the stepwise dissociation of amino acid are determined. The standard thermodynamic characteristics (ΔrH°, ΔrG°, ΔrS°) of reactions of acid–base interaction in aqueous solutions of β-aminobutyric acid are calculated. The correlation between the thermodynamic characteristics of amino acid dissociation and the structure of this compound is examined.

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Funding

This work was performed at the Research Institute for Thermodynamics and Kinetics of Chemical Processes, Ivanovo State University of Chemistry and Technology, as part of a State Task, project no. 4.7104.2017/89. The equipment of the Collective Usage Center of Ivanovo State University of Chemistry and Technology was used in the research.

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Authors and Affiliations

  1. Ivanovo State University of Chemistry and Technology, 153000, Ivanovo, Russia

    A. I. Lytkin, V. V. Chernikov, O. N. Krutova & G. N’yagoya

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  1. A. I. Lytkin
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  2. V. V. Chernikov
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  3. O. N. Krutova
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  4. G. N’yagoya
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Correspondence to O. N. Krutova.

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Translated by P. Vlasov

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Lytkin, A.I., Chernikov, V.V., Krutova, O.N. et al. Thermochemical Study of the Reactions of Acid–Base Interaction in an Aqueous Solution of β-Aminobutyric Acid. Russ. J. Phys. Chem. 94, 323–326 (2020). https://doi.org/10.1134/S0036024420020259

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  • DOI: https://doi.org/10.1134/S0036024420020259

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