Vapor Pressures of Propylene Carbonate and N,N-Dimethylacetamide

Abstract

We have used a static method to measure vapor pressures of propylene carbonate (C4H6O3) and N,N-dimethylacetamide (C4H9NO). Measurements for propylene carbonate were made over the temp. range from (298.15 to 473.15) K; pressures ranged from (0.003 to 37.76) kPa. Measurements for N,N-dimethylacetamide were made over the temp. range (298.15 to 423.15) K; pressures ranged from (0.29 to 64.8) kPa. The vapor pressure data are correlated with the Antoine and Wagner equations. From the measured vapor pressures, the enthalpies of vaporization are calcd. The results are compared with literature values.