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

Determination and Correlation of Excess Molar Enthalpies of the Binary Carbon Dioxide + Diisopropyl Ether (DIPE) System at Temperatures from (298.15 to 308.15) K and Pressures from (5.0 to 7.5) MPa

Matsuda, H.[Hiroyuki], Machida, E.[Erina], Yamanaka, Y.[Yusuke], Kurihara, K.[Kiyofumi], Ochi, K.[Kenji]
J. Chem. Eng. Data 2008, 53, 7, 1612-1617
ABSTRACT
The excess molar enthalpies (HE) of the carbon dioxide + diisopropyl ether system were measured in the vicinity of the critical point of carbon dioxide using a flow-type isothermal microcalorimeter at temperatures from (298.15 to 308.15) K and pressures from (5.0 to 7.5) MPa. Mixtures showed strong exothermic behavior in these regions. The minimum negative value of HE found in this study was about -7.8 kJ * mol-1 at 298.15 K and 5.0 MPa. The experimental results were represented using a composition-dependent equation and the Peng-Robinson equation of state with van der Waals one fluid mixing rules.
Compounds
# Formula Name
1 CO2 carbon dioxide
2 C6H14O diisopropyl ether
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
  • 2
  • 1
  • Mole fraction - 1 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Gas
  • Analysis of excess enthalpy data
  • 11
  • POMD
  • 2
  • 1
  • Excess molar enthalpy (molar enthalpy of mixing), kJ/mol ; Fluid (supercritical or subcritical phases)
  • Mole fraction - 1; Fluid (supercritical or subcritical phases)
  • Temperature, K; Fluid (supercritical or subcritical phases)
  • Pressure, kPa; Fluid (supercritical or subcritical phases)
  • Fluid (supercritical or subcritical phases)
  • Flow calorimetry
  • 166