Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Solubility of dimethyl ether in pentaerythritol tetrabutyrate and in pentaerythritol tetrapentanoate. Comparison with other pentaerythritol tetraalkyl esters

Sun, Y.[Yanjun], Wang, X.[Xiaopo], Gong, N.[Na], Liu, Z.[Zhigang]
J. Chem. Thermodyn. 2015, 87, 23-28
ABSTRACT
The solubilities of dimethyl ether (DME) in pentaerythritol tetrabutyrate (PEC4) and in pentaerythritol tetrapentanoate (PEC5) between T = (283.15 and 353.15) K have been measured by isochoric saturation method. The experimental solubility data were correlated by the Peng Robinson equation of state with HVOS mixing rule in which the excess Gibbs free energy at infinite pressure was represented by the NRTL equation. In addition, an analysis of the influence of the molar mass on the solubility of DME in PECs over a wide range of temperature and pressure was performed.
Compounds
# Formula Name
1 C2H6O dimethyl ether
2 C21H36O8 pentaerythritol tetrabutyrate
3 C25H44O8 pentaerythritol tetrapentanoate
Datasets
The table above is generated from the ThermoML associated json file (link above). POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied; the numbers refer to the table of compounds on the left.
Type Compound-# Property Variable Constraint Phase Method #Points
  • POMD
  • 1
  • 2
  • Mole fraction - 1 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Gas
  • volumetric method
  • 64
  • POMD
  • 1
  • 3
  • Mole fraction - 1 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Gas
  • volumetric method
  • 64