Determination and Correlation of Solubility of N-tert-Butylacrylamide in Seven Different Solvents at Temperatures between (279.15 and 353.15) K

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• 作者：Xu Gao ; Wei-Lan Xue ; Zuo-Xiang Zeng ; Xin-ran Fan
• 刊名：Journal of Chemical & Engineering Data
• 出版年：2015
• 出版时间：August 13, 2015
• 年：2015
• 卷：60
• 期：8
• 页码：2273-2279
• 全文大小：287K
• ISSN：1520-5134

文摘

The solubility data of N-tert-butylacrylamide (TBA) in the ethyl acetate, ethanol,dichloromethane, water, formamide, N,N-dimethylformamide (DMF), and N,N-dimethylacetamide (DMAC) at temperatures ranging from (279.15 to 353.15) K were measured by synthetic method. The experimental data were correlated by the van鈥檛 Hoff plot, modified Apelblat equation, and two local composition models (NRTL and UNIQUAC), respectively. It was found that modified Apelblat equation could obtain the better correlation results than the other three models. In addition, the standard enthalpy, standard entropy and Gibbs free energy change for the solution process were calculated from the solubility data by the van鈥檛 Hoff analysis. Furthermore, on the basis of the NRTL model and experimental data, the thermodynamic excess functions (G^E,S^E,H^E) of TBA + solvents (ethyl acetate, ethanol, dichloromethane, water, formamide, DMF, DMAC) systems were determined.