Measurement and Correlation of Solubilities and Solution Thermodynamics for N,N-Diethylformamide + MCl (M = Na, K, Rb, and Cs) + Water Systems in the Temperature Range 288.15–338.15 K

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• 作者：Yunxue Gao ; Dandan Zhao ; Shuni Li ; Quanguo Zhai ; Yucheng Jiang ; Mancheng Hu
• 刊名：Journal of Chemical & Engineering Data
• 出版年：2016
• 出版时间：April 14, 2016
• 年：2016
• 卷：61
• 期：4
• 页码：1649-1656
• 全文大小：416K
• 年卷期：0
• ISSN：1520-5134

文摘

The (solid + liquid) equilibrium (SLE) of N,N-diethylformamide (DEF) + MCl (M = Na, K, Rb) + H₂O ternary systems were investigated from 288.15 to 338.15 K under atmospheric pressure. The isothermal solubility, density, and refraction index of the ternary solution, as well as the solubility at multiple temperature were reported. The (liquid + liquid) equilibrium (LLE) of (DEF + CsCl + H₂O) ternary system was further studied at 298.15 and 308.15 K. The Jouyban–Arcee model was utilized to correlate the solubility, density, and refractive index data. The LLE was correlated by the Othmer–Tobias and the Bancroft equations. The complete phase diagrams of the (DEF + CsCl + H₂O) system were further presented.