Vapor−Liquid Equilibrium in 2-Ethoxyethanol + Methanol at 313.15 to 333.15 K

Abstract

The vapor−liquid equilibrium (VLE) isotherms were directly determined by the ebulliometric method for the system 2-ethoxyethanol + methanol. The experimental results were correlated by an equation of state that is capable of reproducing VLE for associating and reacting systems with an accuracy similar to the experiment uncertainty over a reasonable range of pressure and temperature. Such correlations are hard to obtain with equations representing activity coefficients at specific particular isotherms.

Vapor Pressures and Thermophysical Properties of Dimethoxymethane, 1,2-Dimethoxyethane, 2-Methoxyethanol, and 2-Ethoxyethanol: Data Reconciliation and Perturbed-Chain Statistical Associating Fluid Theory Modeling

“…Ebulliometric VLE measurements of mixtures containing 2ethoxyethanol (including the pure components) were performed by Malanowski and coworkers. [51][52][53]56 This data is quite consistent with our static measurements. Otherwise, only vapor pressure data with unreasonable trends from the same studies that were excluded in the case of 2methoxyethanol and single-point data from VLE studies were found in the literature.…”

“…2-Ethoxyethanol: relative deviations ( p – p calc )/ p calc of vapor pressures p from the recommended values p calc calculated using the Cox equation, eq , with parameters listed in Table . Brown circles, Pick et al; forest green inverted triangles, Antosik et al; blue diamonds, Chylinski et al; red hexagonal stars, Antosik et al; green left-pointing triangles, DeBord et al; navy stars, Alderson et al. ; purple triangles, Chylinski et al; magenta right-pointing triangles, Pathare et al.…”

Total Vapor Pressure Measurements for 2-Ethoxyethanol with Methyl Acetate, Ethyl Acetate, Propyl Acetate, and Ethyl Propionate at 313.15 K and for 2-Ethoxyethanol with Methyl Formate at 308.15 K

“…With the exception of 2-ethoxyethanol, the pure component vapor pressures reported here are within 0.5% of values smoothed from the literature data − as shown in Table . Vapor pressures of 2-ethoxyethanol at 308.15 and 313.15 K were 1.5% lower and 2.4% higher, respectively, than literature values.…”

“…The uncertainties in the vapor pressure of 2-ethoxyethanol at 313.15 K (1.6% for the present study and estimated by us as 0.7% for the work of Antosik et al 10 ) sum to 2.3%, which is comparable to the 2.4% difference between the values given in Table 1.…”

Vapor−Liquid Equilibrium in 2-Ethoxyethanol + Valeraldehyde and + Propyl Ether at 313.15 to 333.15 K

“…2-Ethoxyethanol (CA registry no. 110-80-5) was described previously (Antosik et al). Valeraldehyde (CA registry no.…”