Liquid-liquid equilibria in 2-methoxyethanol+alkane systems: I. Experimental results at pressures up to 400 MPa

Abstract

In an optical high-pressure autoclave with sapphire windows and magnetic stirring, liquid-liquid equilibria and critical curves in binary systems of 2- methoxyethanol and different alkanes were measured in the temperature range 250–430 K and at pressures from 0.1–400 MPa. For all systems investigated upper critical solution temperatures and lower critical solution pressures were found. The upper critical solution temperature increases with increasing molecular weight of the alkane and decreases with increasing number of CH 3-groups of the alkane.