Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Compressed liquid densities of two dipentaerythritol esters

Fandino, O.[Olivia], Lopez, E. R.[Enriqueta R.], Lugo, L.[Luis], Fernandez, J.[Josefa]
Fluid Phase Equilib. 2010, 296, 1, 30-36
ABSTRACT
In this work, an experimental study for the determination of the density of two dipentaerythritol esters, dipentaerythritol hexapentanoate (DiPEC5) and dipentaerythritol hexaheptanoate (DiPEC7) has been performed for temperatures ranging from 283.15 K to 398.15 K and pressures up to 70 MPa. The heart of the automatic assembly is an Anton Paar DMA HPM vibrating-tube densimeter. The measured densities have been used to study the behaviour and influence of temperature and pressure on the isothermal compressibility, the isobaric thermal expansivity and the internal pressure.
Compounds
# Formula Name
1 C40H70O13 pentanoic acid, 1,1'-[oxybis[2,2-bis[[(1-oxopentyl)oxy]methyl]-1,3-propanediyl]] ester
2 C52H94O13 dipentaerythritol hexaheptanoate
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
  • Vibrating tube method
  • 70
  • POMD
  • 2
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Vibrating tube method
  • 70