Vapor-Pressure Measurements of Liquid Solutions at Different Temperatures: Apparatus for Use over an Extended Temperature Range and Some New Data

An app. for the measurement of vapor pressures of pure solvents and solns. at different temps. is described. The app. is tested for the temp. range (298.15 to 363.15) K using pure water and aq. NaCl solns. The vapor pressures are presented for methanol, ethanol, 1-propanol, 2-propanol, 1-butanol, and 2-butanol, ranging from temps. 298.15 K up to the b.ps. of these alcs. The vapor-pressure data of pure alcs. are correlated with the Antoine equation. The results are compared with literature values