AMINO ACID HYDRATION IN AQUEOUS MAGNESIUM AND SODIUM SULFATE SOLUTIONS
V. P. Korolev, A. L. Serebryakova
G. A. Krestov Institute of Solution Chemistry, Russian Academy of Sciences, Ivanovo, Russia
Keywords: partial volume, amino acids, water-salt systems, group contributions, hydration numbers
Abstract
We study the partial volumes of amino acids in aqueous magnesium and sodium sulfate solutions, which have a different effect on the structure of water, and calculate the structural parameters of hydrated complexes of NH3+ and COO- groups: hydration numbers and water volumes inside and outside the hydration shell. The hydration numbers are given as a sum of the contributions of the interactions in the ternary (water-salt-amino acid) and binary (water-salt) systems.
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