Correlation of Solubility and Solution Thermodynamics of DL-Malic Acid in Organic Solvents at Different Temperatures
- Authors: Huang Chunxiang 1, Yun F.1, Yongmei X.1, Jun W.2, Ye Y.3, Hang L.3, Yixin L.2
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Affiliations:
- School of Chemical and Material Engineering, Jiangnan University
- School of Petrochemical Engineering, Changzhou University
- Changmao Biochemical Engineering Co., Ltd.
- Issue: Vol 92, No 13 (2018)
- Pages: 2710-2717
- Section: Physical Chemistry of Solutions
- URL: https://bakhtiniada.ru/0036-0244/article/view/170287
- DOI: https://doi.org/10.1134/S0036024418130149
- ID: 170287
Cite item
Abstract
The solubility of DL-malic acid in methanol, ethanol, propanol, butanol, ethyl acetate and acetonitrile in the temperature range 283–318 K was measured by acid–base titration method. The solubility of DL-malic acid increased with elevating temperature. The solubility data were correlated by the modified Apelblat, Buchowski–Książczak, Van’t Hoff, Wilson, and non-random two-liquid equations. The calculation results showed that these equations provide good prediction with the acceptable ARD values and RMSD values among all the satisfactory fitting results given by each equation. The mixing Gibbs energy, enthalpy and entropy of real solution were derived based on the Wilson equation and the measured solubility data.
About the authors
Huang Chunxiang
School of Chemical and Material Engineering, Jiangnan University
Email: yunfang@126.com
China, Wuxi, 214122
Fang Yun
School of Chemical and Material Engineering, Jiangnan University
Author for correspondence.
Email: yunfang@126.com
China, Wuxi, 214122
Xia Yongmei
School of Chemical and Material Engineering, Jiangnan University
Email: yunfang@126.com
China, Wuxi, 214122
Wang Jun
School of Petrochemical Engineering, Changzhou University
Email: yunfang@126.com
China, Changzhou, 213164
Yuan Ye
Changmao Biochemical Engineering Co., Ltd.
Email: yunfang@126.com
China, Changzhou, 213034
Liu Hang
Changmao Biochemical Engineering Co., Ltd.
Email: yunfang@126.com
China, Changzhou, 213034
Leng Yixin
School of Petrochemical Engineering, Changzhou University
Email: yunfang@126.com
China, Changzhou, 213164
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