绘制正己烷－乙醇－水的三组分液系相图

摘要

The n-hexane-alcohol-water ternary liquid phase diagram was obtained through the solubility curves of the ternary determined by cloud-piont-titration method.It showed that at room temperature 10.0 ℃, in the n-hexane-al-cohol-water ternary liquid phase diagram, at the isothermal consolute D point, the mass fraction of alcohol and n-hex-ane was 73.0% and 14.1%, respectively.Two conjugate ternary solutions were formed in the binodal solubility curve BDC, and at the system point O, the mass ratio of the two conjugate solutions was mG: mH=|OH|:|OG|.%采用浊点滴定法测定各组分的溶解度曲线，绘制出了正己烷－乙醇－水的三组分液系相图.结果表明，在室温为10．0℃时，正己烷－乙醇－水的三组分液系相图中，等温会溶点D点处，乙醇、正己烷的质量分数分别为73．0％、14．1％；双结点溶解度曲线BDC内，形成了两个共轭的三组分溶液；物系点 O 时，两共轭溶液数量的比值为mG：mH＝|OH|：|OG|.