Experimental determination and correlation of the solubility of 4-hydroxy-2,5-dimethyl-3(2H)-furanone (DMHF) in binary (ethanol plus water) solvent mixtures

被引：13

作者：

Wang, Li-yu ^{[1
]}

Li, Xian-chao ^{[1
]}

Zhu, Liang ^{[1
,2
]}

Sha, Zuo-liang ^{[1
]}

Wang, Yan-fei ^{[1
]}

Yang, Li-bin ^{[1
]}

机构：

[1] Tianjin Univ Sci & Technol, Coll Marine Sci & Engn, Tianjin Key Lab Marine Resources & Chem, Tianjin 300457, Peoples R China

[2] Myande Grp Co Ltd, Yangzhou 225127, Peoples R China

来源：

JOURNAL OF MOLECULAR LIQUIDS | 2015年 / 208卷

基金：

高等学校博士学科点专项科研基金;

关键词：

DMHF; Co-solvent mixtures; Solubility data; Correlation models; SOLUTION THERMODYNAMICS; ACID; 2,5-DIMETHYL-4-HYDROXY-3(2H)-FURANONE;

D O I：

10.1016/j.molliq.2015.04.041

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In the present study, the solubility and dissolution thermodynamics of 4-hydroxy-2,5-dimethyl-3(2H)-furanone (DMHF) in ethanol + water co-solvent mixtures were experimentally measured over the temperature range from 283.15 to 313.15 K under the atmospheric pressure of 0.1 MPa. Measurements were performed using the dynamic method coupled with a laser monitoring system as the observation technique. The onset fusion point temperature and enthalpy of fusion were determined by differential scanning calorimetry (DSC). The effects of temperature and co-solvent composition on the solubility data were discussed. The mole fraction solubility (42.71 x 10(-2) at 313.15 K) of DMHF was observed highest in pure ethanol. However, the lowest mole fraction solubility (0.9112 x 10(-2) at 283.15 K) of DMHF was found in distilled water. The experimental solubilities of DMHF were correlated with the modified Apelblat equation, van't Hoff equation, lambda h equation and Combined Nearly Ideal Binary Solvent/Redlich-Kister (CNIBS/R-K) model. The used correlation models were all proven to give good agreement with the experimental data and the modified Apelblat equation provided the best correlation results. Dissolution thermodynamic studies indicated that the dissolution process of DMHF was endothermic and enthalpy-driven. Based on the current solubility data, DMHF has been considered as freely soluble in pure ethanol and slightly soluble in distilled water. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：211 / 218

页数：8

共 29 条

[1] MATHEMATICAL REPRESENTATION OF THERMODYNAMIC PROPERTIES .2. DERIVATION OF THE COMBINED NEARLY IDEAL BINARY SOLVENT (NIBS) REDLICH-KISTER MATHEMATICAL REPRESENTATION FROM A 2-BODY AND 3-BODY INTERACTIONAL MIXING MODEL [J].