Tsurko, Elena N. and Neueder, Roland and Kunz, Werner (2007) Water activity and osmotic coefficients in solutions of glycine, glutamic acid, histidine and their salts at 298.15 K and 310.15 K. JOURNAL OF SOLUTION CHEMISTRY, 36 (5). pp. 651-672. ISSN 0095-9782, 1572-8927
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From vapor pressure osmometry data, the activity of water, osmotic coefficients and mean ionic activity coefficients of glycine (m = 0.006-3.2 mol center dot kg(-1)), L-histidine (in = 0.005-0.23 mol center dot kg(-1)), L-histidine monohydrochloride (m = 0.008-0.63 mol center dot kg(-1)), glutamic acid (m = 0.004-0.05 mol center dot kg(-1)), sodium L-glutamate (m = 0.007-0.6 mol center dot kg(-1)), and calcium L-glutamate (m = 0.008-0.6 mol center dot kg(-1)) have been obtained in aqueous solutions at 298.15 and 310.15 K. The Pitzer equations and the mean spherical approximation (MSA) are used for theoretical modeling. The results are supplied as reference thermodynamic material for the characterization of more complex molecules such as proteins.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | AQUEOUS AMINO-ACID; NONAQUEOUS ELECTROLYTE-SOLUTIONS; THERMODYNAMIC PROPERTIES; ADIABATIC COMPRESSIBILITIES; VAPOR-PRESSURES; HEAT-CAPACITIES; IONIC-STRENGTH; VOLUMES; CONSTANTS; SODIUM; vapor pressure osmometry; emf; activity coefficients; osmotic coefficients; glycine; L-histidine; L-histidine hydrochloride; glutamic acid; sodium L-glutamate; calcium L-glutamate; amino acid |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Physikalische und Theoretische Chemie > Chair of Chemistry VI - Physical Chemistry (Solution Chemistry) > Prof. Dr. Werner Kunz |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 14 Dec 2020 07:18 |
| Last Modified: | 14 Dec 2020 07:18 |
| URI: | https://pred.uni-regensburg.de/id/eprint/32838 |
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