NaCl+异丙醇(或1,2丙二醇、或丙三醇)+水体系的固液平衡

摘要本文测定了常压下ＮａＣｌ＋异丙醇（或１，２丙二醇、或丙三醇）＋水体系的凝固温度。实验结果和热力学理论推导表明：当无盐基混合溶剂的相对组成固定时，体系的凝固点与盐浓度间存在线性关系。据热力学基本原理导出了该线性关系的数学解析式；依据吉布斯相律分析了线性关系的存在性；讨论了ＮａＣｌ的加入对含有多羟基醇水混合溶剂结构及性质的影响规律

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	刘文彬
	王键吉
	卓克垒
	卢锦梭

关键词：混合溶剂固液平衡盐效应凝固点

Abstract： The freezing point of the system of NaCl+2 Propanol(or 1,2 Propylene glycol、or Glycol)+Water at normal pressure have been determined with the freezing point apparatus. A linear relationship was found between the freezing point and the concentration of the salt at fixed relative composition of the solvents. A linear equation was derived by using thermodynamic theory and the existance of the linear relationship was analyzied with Gibbs phase rule. The effect of NaCl on the structure and property of the mixed solvent have also been discussed.

Keywords： mixed solvent solid—liquid equilibrium salt effect freezing point

Received 1997-01-15;

引用本文:

刘文彬,王键吉,卓克垒,卢锦梭.NaCl+异丙醇(或1,2丙二醇、或丙三醇)+水体系的固液平衡[J]. 化学工业与工程, 1997,14(1): 9-15

Liu Wenbin Wang Jianji Zhuo Kelei Lu Jinsuo .Solid-Liquid Equilibrium for NaCl+2 Propanol (or 1,2 Propylene glycol、or Glycol)+Water Systems[J]. Chemcial Industry and Engineering, 1997,14(1): 9-15