Measurement and Correlation of the Solubilities of l‑Valine in Water, Ethanol, N,N‑Dimethylformamide, Acetone, and Isopropyl Alcohol between (293.15 and 343.15) K

The solubilities of l-valine in water, ethanol, N,N-dimethylformamide, acetone, and isopropyl alcohol were experimentally measured by the synthetic method over the temperature range from (293.15 to 343.15) K at atmosphere pressure. The solubilities of l-valine in pure solvents increase with increasi...

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Veröffentlicht in:Journal of chemical and engineering data 2014-09, Vol.59 (9), p.2704-2708
Hauptverfasser: Zhang, Chuntao, Liu, Bangyu, Wang, Xin, Wang, Hairong
Format: Artikel
Sprache:eng
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Zusammenfassung:The solubilities of l-valine in water, ethanol, N,N-dimethylformamide, acetone, and isopropyl alcohol were experimentally measured by the synthetic method over the temperature range from (293.15 to 343.15) K at atmosphere pressure. The solubilities of l-valine in pure solvents increase with increasing temperature and in the following order: acetone < N,N-dimethylformamide < isopropyl alcohol < ethanol < water. The solubilities correlated using the modified Apelblat model show good agreement with the experimental data, and the dissolution enthalpy, dissolution entropy, and the molar Gibbs energy were predicted. The experimental solubilities and the modified Apelblat model can be used as essential data and model in the industrial manufacturing process of l-valine.
ISSN:0021-9568
1520-5134
DOI:10.1021/je500035r