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论文类型：期刊论文

第一作者：Zhu, Peipei

通讯作者：Chen, W (reprint author), Tianjin Univ, Natl Engn Res Ctr Ind Crystallizat Technol, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China.; Chen, W (reprint author), Collaborat Innovat Ctr Chem Sci & Chem Engn Tianj, Tianjin 300072, Peoples R China.

合写作者：Chen, Yanxin,Zhou, Yanan,Xiao, Yan,Ouyang, Jinbo,Huang, Xin,He, Gaohong,Hou, Baohong,Chen, Wei

发表时间：2016-04-01

发表刊物：JOURNAL OF CHEMICAL AND ENGINEERING DATA

收录刊物：SCIE、EI

卷号：61

期号：4

页面范围：1517-1523

ISSN号：0021-9568

摘要：In this work, solubility data of 1,3-dimethylurea (DMU) in methanol, ethanol, 1-propanol, 1-butanol, 1-pentanol, 1-hexanol, 1-heptanol, and 1-octanol were measured by synthetic method from T = 288.15 to 328.15 K at ordinary pressure. It turned out that the solubility data increased as temperature and solvent polarity increased. The molecular interactions in solution have been studied by the linear energy relationship. Furthermore, based on two thermodynamic models (i.e., modified Apelblat and Wilson), the experimental results were fitted and analyzed. Finally, the thermodynamic properties of solution, including entropy, enthalpy, and Gibbs energy were calculated. These results indicate that in all selected solvents the dissolution behavior were endothermic, entropy-driven, and not spontaneous.