Thermodynamics of the Acid–Base Reactions of  N -Methylglycine in Aqueous Solutions of HNO 3  and KOH

A. I. Lytkin; V. V. Chernikov; O. N. Krutova; V. G. Badelin; P. D. Krutov

doi:10.1134/S0036024418110249

Thermodynamics of the Acid–Base Reactions of N-Methylglycine in Aqueous Solutions of HNO₃ and KOH

Authors: Lytkin A.I.¹, Chernikov V.V.¹, Krutova O.N.¹, Badelin V.G.², Krutov P.D.¹
Affiliations:
1. Ivanovo State University of Chemistry and Technology
2. Institute of Solution Chemistry. Russian Academy of Sciences
Issue: Vol 92, No 11 (2018)
Pages: 2165-2168
Section: Physical Chemistry of Solutions
URL: https://journals.rcsi.science/0036-0244/article/view/170197
DOI: https://doi.org/10.1134/S0036024418110249
ID: 170197

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Abstract

Enthalpies are determined calorimetrically for the acid–base reactions of N-methylglycine in aqueous solutions of nitric acid and potassium hydroxide at a temperature of 298.15 K and ionic strengths of 0.25, 0.50, and 0.75 (in the presence of KNO₃). Standard thermodynamic characteristics of the acid–base reactions of N-methylglycine are calculated. The effect the concentration of the background electrolyte has on the enthalpy of sarcosine dissociation is considered.