Evaluation of thermodynamic properties and correlation of L-glutamic acid solubility in some aqueous chloride solutions from 298.15 to 323.15 K
| Autor: | Adel Noubigh, M. J. A. Abualreish |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Aqueous solution
Chemistry Organic Chemistry 02 engineering and technology General Chemistry Glutamic acid 010402 general chemistry 01 natural sciences Chloride Catalysis 0104 chemical sciences 020401 chemical engineering medicine 0204 chemical engineering Solubility Chloride salt medicine.drug Nuclear chemistry |
| Zdroj: | Canadian Journal of Chemistry. 97:615-620 |
| ISSN: | 1480-3291 0008-4042 |
| DOI: | 10.1139/cjc-2019-0018 |
| Popis: | This paper investigates the solubility–temperature dependence data for L-glutamic acid (Glu) in water and in some chloride salt (NaCl and KCl) aqueous solutions. Solubility data were determined from 293.15 to 318.15 K under atmospheric pressure by using a thermostatted reactor and the gravimetric method. After the investigation of the impact of inorganic salts on the solvency of Glu, it was found that the salting-out effect decreases in the following order: sodium chloride > potassium chloride. Results demonstrated that the solubility, in unadulterated water and in aqueous chloride solutions, increased with a rising temperature. The experimental data were well correlated by the semi-empirical equation. Using the measured solubilities, the standard molar thermodynamic properties of transfer of Glu (ΔtrG°, ΔtrH°, and ΔtrS°) from pure water to aqueous solutions of the chloride salts were estimated. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|