Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Critical temperatures and pressures of ethylene glycols

Nikitin, E. D.[Eugene D.], Popov, A. P.[Alexander P.]
Fluid Phase Equilib. 2018, 472, 56-61
ABSTRACT
The critical temperatures and pressures of di-, tri-, tetra-, penta-, and hexaethylene glycols have been measured using the pulse-heating method applicable to thermally unstable compounds. The results obtained have been compared with the data of previous measurements and the results of computer simulations. The recommended values of the critical temperatures and pressures of the homologous series of ethylene glycols have been given.
Compounds
# Formula Name
1 C4H10O3 diethylene glycol
2 C6H14O4 triethylene glycol
3 C8H18O5 tetraethylene glycol
4 C10H22O6 3,6,9,12-tetraoxatetradecane-1,14-diol
5 C12H26O7 3,6,9,12,15-pentaoxaheptadecane-1,17-diol
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
  • Critical temperature, K ; Liquid
  • Liquid
  • Gas
  • Resistive pulse heating
  • 1
  • POMD
  • 1
  • Critical pressure, kPa ; Liquid
  • Liquid
  • Gas
  • Resistive pulse heating
  • 1
  • POMD
  • 2
  • Critical temperature, K ; Liquid
  • Liquid
  • Gas
  • Resistive pulse heating
  • 1
  • POMD
  • 2
  • Critical pressure, kPa ; Liquid
  • Liquid
  • Gas
  • Resistive pulse heating
  • 1
  • POMD
  • 3
  • Critical temperature, K ; Liquid
  • Liquid
  • Gas
  • Resistive pulse heating
  • 1
  • POMD
  • 3
  • Critical pressure, kPa ; Liquid
  • Liquid
  • Gas
  • Resistive pulse heating
  • 1
  • POMD
  • 4
  • Critical temperature, K ; Liquid
  • Liquid
  • Gas
  • Resistive pulse heating
  • 1
  • POMD
  • 4
  • Critical pressure, kPa ; Liquid
  • Liquid
  • Gas
  • Resistive pulse heating
  • 1
  • POMD
  • 5
  • Critical temperature, K ; Liquid
  • Liquid
  • Gas
  • Resistive pulse heating
  • 1
  • POMD
  • 5
  • Critical pressure, kPa ; Liquid
  • Liquid
  • Gas
  • Resistive pulse heating
  • 1