Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

Liquid Density Measurements of Diethylene Glycol Monoalkyl Ethers as a Function of Temperature and Pressure

Lopez, E. R.[Enriqueta R.], Lugo, L.[Luis], Comunas, M. J. P.[Maria J.P.], Garcia, J.[Josefa], Fernandez, J.[Josefa]
J. Chem. Eng. Data 2004, 49, 2, 376-379
ABSTRACT
In this work, 144 new experimental density values are reported for diethylene glycol monomethyl ether (DEGME) and diethylene glycol monoethyl ether (DEGEE) in the compressed liquid phase between 283.15 K and 353.15 K for pressures up to 25 MPa. The density measurements were performed with an Anton Paar DMA 60/512P vibrating tube densimeter and then correlated by using a Tammann-Tait equation with standard deviations of 1x10-4 g/cm-3. The isothermal compressibility, the isobaric thermal expansivity, and the internal pressure have been determined from the density data. The isothermal compressibility and isobaric thermal expansivity values increase with the size of the diethylene glycol monoalkyl ether molecule. The internal pressure values are lower for DEGEE than for DEGME.
Compounds
# Formula Name
1 C5H12O3 2-(2-methoxyethoxy)ethanol
2 C6H14O3 3,6-dioxa-1-octanol
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
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • VIBTUB:mpoint
  • 72
  • POMD
  • 2
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • VIBTUB:mpoint
  • 72