TY - JOUR
T1 - Thermodynamics of solubility of thiomalic acid in different organic solvents from 278.15K to 333.15K
AU - Meng, Zhongbin
AU - Hu, Yonghong
AU - Kai, Yumei
AU - Yang, Wenge
AU - Cao, Zheng
AU - Shen, Fei
PY - 2013/8/5
Y1 - 2013/8/5
N2 - The solubility of thiomalic acid was measured in methanol, ethanol, 2-propanol, 1-butanol, acetone, acetonitrile, and ethyl acetate in the temperature range between 278.15. K and 333.15. K under atmospheric pressure by gravimetric method. The solubility of thiomalic acid in those selected solvents increased with increasing temperature. The solubility data were correlated using the simplified molecular thermodynamic equation, the modified Apelblat equation and the semi-empirical Buchowski-Ksiazczak λh equation. The thermodynamic properties of the solution process, including the Gibbs energy, enthalpy, and entropy were calculated by the van't Hoff analysis and the Gibbs equation. The experimental results showed that acetonitrile had the potential as the better solvent in the recrystallization process of thiomalic acid.
AB - The solubility of thiomalic acid was measured in methanol, ethanol, 2-propanol, 1-butanol, acetone, acetonitrile, and ethyl acetate in the temperature range between 278.15. K and 333.15. K under atmospheric pressure by gravimetric method. The solubility of thiomalic acid in those selected solvents increased with increasing temperature. The solubility data were correlated using the simplified molecular thermodynamic equation, the modified Apelblat equation and the semi-empirical Buchowski-Ksiazczak λh equation. The thermodynamic properties of the solution process, including the Gibbs energy, enthalpy, and entropy were calculated by the van't Hoff analysis and the Gibbs equation. The experimental results showed that acetonitrile had the potential as the better solvent in the recrystallization process of thiomalic acid.
KW - Apelblat equation
KW - Buchowski-Ksiazczak equation
KW - Solubility
KW - Solution thermodynamics
KW - Thiomalic acid
UR - http://www.scopus.com/inward/record.url?scp=84878402661&partnerID=8YFLogxK
U2 - 10.1016/j.fluid.2013.05.002
DO - 10.1016/j.fluid.2013.05.002
M3 - 文章
AN - SCOPUS:84878402661
SN - 0378-3812
VL - 352
SP - 1
EP - 6
JO - Fluid Phase Equilibria
JF - Fluid Phase Equilibria
ER -