TY - JOUR
T1 - Solid-liquid equilibrium and thermodynamic of 2,5-thiophenedicarboxylic acid in different organic solvents
AU - Zhi, Wenbiao
AU - Hu, Yonghong
AU - Liang, Mengmeng
AU - Liu, Yan
AU - Li, Jiaojiao
AU - Yin, Jingjing
AU - Shi, Ying
PY - 2014/8/15
Y1 - 2014/8/15
N2 - In this paper, the solid-liquid equilibrium of 2,5-thiophenedicarboxylic acid in methanol, ethanol, i-propanol, n-butanol, acetic acid, n-hexane, acetonitrile and acetone was explored from 278.15. K to 333.15. K under atmosphere pressure. Modified Apelblat equation and λh equation were adopted to describe and predict the change tendency of solubility. Besides, the thermodynamic properties of the dissolution process, including enthalpy, entropy and Gibbs energy, were calculated by means of van't Hoff analysis and Gibbs equation. Based on the analysis above, ethanol is considered to be the best solvent in crystallization process of 2,5-thiophenedicarboxylic acid.
AB - In this paper, the solid-liquid equilibrium of 2,5-thiophenedicarboxylic acid in methanol, ethanol, i-propanol, n-butanol, acetic acid, n-hexane, acetonitrile and acetone was explored from 278.15. K to 333.15. K under atmosphere pressure. Modified Apelblat equation and λh equation were adopted to describe and predict the change tendency of solubility. Besides, the thermodynamic properties of the dissolution process, including enthalpy, entropy and Gibbs energy, were calculated by means of van't Hoff analysis and Gibbs equation. Based on the analysis above, ethanol is considered to be the best solvent in crystallization process of 2,5-thiophenedicarboxylic acid.
KW - 2 ;5-Thiophenedicarboxylic acid
KW - Apelblat equation
KW - Solubility
KW - Thermodynamic properties
KW - λh equation
UR - http://www.scopus.com/inward/record.url?scp=84901675835&partnerID=8YFLogxK
U2 - 10.1016/j.fluid.2014.05.003
DO - 10.1016/j.fluid.2014.05.003
M3 - 文章
AN - SCOPUS:84901675835
SN - 0378-3812
VL - 375
SP - 110
EP - 114
JO - Fluid Phase Equilibria
JF - Fluid Phase Equilibria
ER -