Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Compressed liquid densities and excess molar volumes for (CO2 + 1-pentanol) binary system at temperatures from 313 to 363 K and pressures up to 25 MPa

Zuniga-Moreno, A.[Abel], Galicia-Luna, L. A.[Luis A.], Sandler, S. I.[Stanley I.]
J. Chem. Thermodyn. 2008, 40, 2, 180-192
ABSTRACT
Measurements of compressed liquid densities for 1-pentanol and for {CO2 (1) + 1-pentanol (2)} system were carried out at temperatures from 313 K to 363 K and pressures up to 25 MPa. Densities were measured for binary mixtures at 10 different compositions, x1 = 0.0816, 0.1347, 0.3624, 0.4651, 0.6054, 0.7274, 0.8067, 0.8573, 0.9216, and 0.9757. A vibrating tube densimeter was used to perform density measurements using two reference calibration fluids. The uncertainty is estimated to be better than +-0.2 kg Ae m 3 for the experimental density measurements. For each mixture and for 1-pentanol, the experimental densities were correlated using an explicit volume equation of six parameters and an 11-parameter equation of state (EoS). Excess molar volumes were determined for the (CO2 + 1-pentanol) system using 1-pentanol densities calculated from the 11-parameter EoS and CO2 densities calculated from a multiparameter reference EoS.
Compounds
# Formula Name
1 CO2 carbon dioxide
2 C5H12O pentan-1-ol
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
  • Mass density, kg/m3 ; Fluid (supercritical or subcritical phases)
  • Temperature, K; Fluid (supercritical or subcritical phases)
  • Pressure, kPa; Fluid (supercritical or subcritical phases)
  • Fluid (supercritical or subcritical phases)
  • VIBTUB:mpoint
  • 156
  • POMD
  • 2
  • 1
  • Mass density, kg/m3 ; 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)
  • VIBTUB:mpoint
  • 991