<正> 在林产化学工业,如合成樟脑和一些香料的生产中,需要某些萜烯类物质二元体系的汽液相平衡数据及关联式。关于这方面的工作,国内尚未见报道,国外也仅有少数文献报道,而且不免有粗糙之处(例如文献[4]中所报道的α-蒎烯～苧烯二元系汽液平衡数据)。作者正在对常见的萜烯类物质进行汽液平衡数据的测定,并用Wilson方程关联。本文首先介绍作者应用改进的Rose平衡釜(以下简称Rose釜)测得的在111mmHg(绝压)下α-蒎烯～苧烯二元体系的汽液平衡数据。

Vapor-liquid equilibrium data on benzene-ethyl alcohol binary system at 760 mmHg were secured from modified Rose equilibrium still. It was found out that the data obtained accorded with the themodynamic consistency. Then pure α -pinene and limonene were prepared at the pressure of 50mmHg by a high efficiency fractionating column.Using this modified Rose equilibrium still, vapor-liquid equilibrium data on α= pinene - limonene binary system at 111 mmHg were also collected which showed that this binary system is a perfect system which follows Raoult’s law.