Dissolution enthalpy of glycine in aqueous solutions of bivalent metal electrolytes |
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| Affiliation: | 1. Department of Physical Chemistry, V. N. Karazin National University, 61022, Kharkov, Ukraine;2. National University of Food Technologies, Volodymyrskaya, 68, Kiev, 01601, Ukraine;1. Chapel Hill, NC 27514, USA;2. Libertyville, IL, USA;1. Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan;2. Department of Life Sciences and Institute of Genomic Sciences, National Yang Ming University, Taipei 11221, Taiwan;1. Research Institute for Chemistry, Lobachevsky State University of Nizhny Novgorod, Gagarin Ave. 23, Nizhny Novgorod 603950, Russia;2. Saint-Petersburg State University, Universitetskii pr. 26, St. Petersburg 198504, Russia;3. Saint-Petersburg State Technological Institute (Technical University), Universitetskii pr. 26, St. Petersburg 198504, Russia |
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| Abstract: | ![]()
Measurement of the dissolution enthalpies of glycine in aqueous solutions of MgCl2, CaCl2, SrCl2, BaCl2, Mg(NO3)2 and Ca(NO3)2 at 298.15 K have been undertaken. The enthalpic heterogeneous interaction coefficients of the glycine zwitterion with the dissociated electrolyte have been calculated using the standard enthalpies of solution of amino acid in water and in aqueous solution of electrolytes. The effect of the ion type and of the structure of glycine on the magnitude of the enthalpic interaction coefficients are discussed. |
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