Compositions, Densities, and Refractive Indices for the Ternary Systems Ethylene Glycol + NaCl + H2O, Ethylene Glycol + KCl + H2O, Ethylene Glycol + RbCl + H2O, and Ethylene Glycol + CsCl + H2O at 298.15 K

被引:22
|
作者
Zhou, Yanhong [1 ]
Li, Shu'ni [1 ]
Zhai, Quanguo [1 ]
Jiang, Yucheng [1 ]
Hu, Mancheng [1 ]
机构
[1] Shaanxi Normal Univ, Sch Chem & Mat Sci, Key Lab Macromol Sci Shaanxi Prov, Xian 710062, Shaanxi, Peoples R China
来源
基金
中国国家自然科学基金;
关键词
LIQUID-SOLID EQUILIBRIA; PLUS SODIUM-CHLORIDE; SATURATED SOLUTIONS; POTASSIUM-CHLORIDE; RUBIDIUM-CHLORIDE; WATER; ETHANOL; SOLUBILITY; ISOTHERMS; VISCOSITY;
D O I
10.1021/je900630n
中图分类号
O414.1 [热力学];
学科分类号
摘要
Solubilities, densities, and refractive indices have been measured for the four ternary systems, ethylene glycol + NaCl + H2O, ethylene glycol + KCl + H2O, ethylene glycol + RbCl + H2O, and ethylene glycol + CsCl + H2O, at T = 298.15 K, with mass fractions of ethylene glycol ranging from 0 to 1.0. Polynomial equations of fit are proposed for the solubility of the saturated solutions IS a function of the mass fraction of ethylene glycol. The equations proposed also account for the density and refractive index for the saturated Solutions. Oil the other hand, the density and refractive index of unsaturated Solutions Were also determined for the same ternary systems with varied undersaturated salt concentrations. Values for both the properties were also correlated with the salt concentrations and proportions of ethylene glycol in the undersaturated Solutions. In all the cases, the presence of ethylene glycol significantly reduces the solubility Of the Salts in the aqueous solution.
引用
收藏
页码:1289 / 1294
页数:6
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