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Thermodynamic Characteristics of Protolytic Equilibria of L-Alanayl-L-isoleucine in Aqueous Solutions

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Abstract

Potentiometry and calorimetry are used to study protolytic equilibria in aqueous solutions of L‑alanyl-L-isoleucine. The equilibrium constants and heat effects of the dipeptide dissociation reactions are determined. The standard thermodynamic characteristics of the investigated equilibria are calculated. The obtained results are compared to the corresponding data for related compounds.

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Funding

This work was performed at the Research Institute of the Thermodynamics and Kinetics of Chemical Processes as part of a State Task for research and development, topic no. FZZW-2020-0009.

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Authors and Affiliations

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

    S. N. Gridchin

  2. Tver State University, 170100, Tver, Russia

    V. M. Nikol’skii

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  1. S. N. Gridchin
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  2. V. M. Nikol’skii
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Correspondence to S. N. Gridchin.

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Gridchin, S.N., Nikol’skii, V.M. Thermodynamic Characteristics of Protolytic Equilibria of L-Alanayl-L-isoleucine in Aqueous Solutions. Russ. J. Phys. Chem. 95, 80–83 (2021). https://doi.org/10.1134/S0036024421010106

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  • DOI: https://doi.org/10.1134/S0036024421010106

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