Bubble Temperatures of the Binary Mixtures of Dimethylcarbonate with Some Alcohols at 95.8 kPa

Abstract

Boiling temperatures at 95.8 kPa over the entire composition range are measured for the binary systems formed by dimethylcarbonate with ethanol, n-propanol, isopropanol, n-butanol, isobutanol, sec-butanol, and tert-butanol. A Swietoslawski-type ebulliometer was used for the measurements. The composition vs temperature measurements are well represented by the Wilson model.

The Use of the PC-SAFT for Modeling Selected Experimental Thermophysical Properties of Dimethyl Carbonate +1-Butanol Binary Mixture

“…For the case of the isothermal condition, Oh et al 19 only reported the vapor and liquid mole fractions (y−x) without the values of the corresponding equilibrium pressures. For the case of isobaric conditions, Vittal et al 21 and Matsuda et al 22 only report the equilibrium temperature and the liquid mole fraction (T−x) at selected isobaric conditions from 40 to 95.8 kPa, whereas Rodriguez et al 20 report a complete and consistent (T−x−y) data at 101.3 kPa. According to Oh et al, 19 Vittal et al, 21 Matsuda et al, 22 and Lecat, 23 this mixture is zeotropy at the explored range, while Rodriguez et al 20 declare that VLE of this binary mixture displays an azeotropic behavior at 101.3 kPa (i.e., T Az = 363.32 K and x 1 Az = 0.9306).…”

“…Previous thermophysical evaluation of this binary mixture covers the vapor–liquid equilibrium (VLE) measurement under the isothermal condition of 333.15 K and at the isobaric conditions from 40 to 101.3 kPa. − However, the available experimental VLE data are partially reported. For the case of the isothermal condition, Oh et al only reported the vapor and liquid mole fractions ( y – x ) without the values of the corresponding equilibrium pressures.…”

“…For the case of isobaric conditions, Vittal et al and Matsuda et al only report the equilibrium temperature and the liquid mole fraction ( T – x ) at selected isobaric conditions from 40 to 95.8 kPa, whereas Rodriguez et al report a complete and consistent ( T – x – y ) data at 101.3 kPa. According to Oh et al, Vittal et al, Matsuda et al, and Lecat, this mixture is zeotropy at the explored range, while Rodriguez et al declare that VLE of this binary mixture displays an azeotropic behavior at 101.3 kPa (i.e., T Az = 363.32 K and x 1 Az = 0.9306). Atmospheric liquid densities have also been measured in a wide range of isothermal conditions (i.e., 293.15 to 363.15 K), ,, showing monotonic behavior of liquid density with the liquid mole fraction and good agreement with each other.…”