Phase behavior of tetramethylurea plus MCl (M = Na, K, Rb, Cs) + H2O systems at 288.2, 298.2 and 308.2 K

被引：3

作者：

Cao, Xiaoyue ^{[1
]}

Chang, Yahui ^{[2
]}

Li, Shuni ^{[1
]}

Zhai, Quanguo ^{[1
]}

Jiang, Yucheng ^{[1
]}

Hu, Mancheng ^{[1
]}

机构：

[1] Shaanxi Normal Univ, Sch Chem & Chem Engn, Key Lab Macromol Sci Shaanxi Prov, Xian 710062, Shaanxi, Peoples R China

[2] Shaanxi Noma Univ, Sch Educ, Xian 710062, Shaanxi, Peoples R China

来源：

JOURNAL OF CHEMICAL THERMODYNAMICS | 2020年 / 144卷 / 144期

基金：

中国国家自然科学基金;

关键词：

MCl; (M; Na; K; Rb; Cs); Tetramethylurea; Phase equilibria; Density; Refractive index; AQUEOUS 2-PHASE SYSTEMS; LIQUID-LIQUID EQUILIBRIUM; WATER TERNARY-SYSTEMS; VOLUMETRIC PROPERTIES; REFRACTIVE-INDEX; VAPOR-PRESSURES; SODIUM-CHLORIDE; SOLUBILITY; TEMPERATURES; MIXTURES;

D O I：

10.1016/j.jct.2020.106058

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

For this article, we investigated the phase behavior and physicochemical properties of the ternary systems MCl (M = Na, K, Rb, Cs) + tetramethylurea (TMU) + H2O at temperatures of 288.2, 298.2 and 308.2 K. For (solid-liquid) equilibrium (SLE) systems (NaCl/KCl/RbCl + TMU + H2O at three temperatures and CsCl + TMU + H2O at 288.2 K), the density, solubility and refractive index about the saturated solutions was obtained. About (liquid-liquid) equilibrium (LLE) systems (CsCl + TMU + H2O at 298.2 and 308.2 K), the binodal curves and tie lines were obtained. The three parameter equation, Othmer-Tobias and Bancroft equations were used to correlate the SLE and LLE data. (C) 2020 Elsevier Ltd.

引用

页数：9

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