20℃时NaCl-C_2H_5OH-H_2O三元体系的相平衡研究  

Study on the Phase Equilibrium of NaCl-C_2H_5OH-H_2O Ternary System at 20 ℃

作　　者：杨吉民[1] 陈见见[1] 张润芝[1] 平梅[1] 

机构地区：[1]临沂师范学院,山东临沂276005

出　　处：《河南化工》2007年第2期20-22,共3页Henan Chemical Industry

摘　　要：测定了20℃时NaC l-C2H5OH-H2O体系等温平衡溶解度及饱和溶液的折光率和密度,且绘制了相图。用多元线性回归程序对折光率、密度和NaCl的溶解度与液相中乙醇含量之间的关系进行关联。体系没有产生分层现象,得到的平衡固相皆为无水盐,没有新化合物或水合物生成。The isothermal solubility , density and refractive index of NaCl - C2 H5 OH - H2O system at 20 ℃ are investigated using phase equilibrium. The compositions of liquid and solid phases at equilibrium states are determined, and the phase diagrams are obtained. The relativities between solubility of NaCl, refractive index, density of the saturated solution and the alcohol content of liquid phase are evaluated using multiple linear regression method. The lamination is not observed. The equilibrium solid pha- ses at 20 ℃are all NaCl, and no new compounds are found.

关 键 词：氯化钠 乙醇 三元体系 相平衡 溶解度 

分 类 号：TQ021.4[化学工程]