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

Compressed Liquid Densities and Excess Volumes for the Binary System CO2 + N,N-Dimethylformamide (DMF) from (313 to 363) K and Pressures up to 25 MPa

Zuniga-Moreno, A.[Abel], Galicia-Luna, L. A.[Luis A.]
J. Chem. Eng. Data 2005, 50, 4, 1224-1233
ABSTRACT
Compressed liquid densities for DMF and for CO2 (1) + DMF (2) binary mixtures are reported from (313 to 363) K and up to 25 MPa. Densities were measured for binary mixtures at nine different compositions, x1) 0.2618, 0.2876, 0.4068, 0.4268, 0.4461, 0.4502, 0.6235, 0.8091, and 0.9311. There are no experimental density data concerning CO2 + DMF mixtures reported in the literature. The estimated uncertainty is (0.20 kgam-3 for the experimental compressed liquid densities. Densities of DMF were correlated with the Benedict-Webb-Rubin-Starling equation of state (BWRS EoS) and the Tait equation. A fiveparameter equation was used to correlate the experimental densities of DMF and CO2 + DMF mixtures. Excess molar volumes were determined using DMF densities calculated from the BWRS EoS and CO2 densities calculated from the Span-Wagner EoS.
Compounds
# Formula Name
1 CO2 carbon dioxide
2 C3H7NO dimethylformamide
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 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Vibrating tube method
  • 150
  • POMD
  • 2
  • 1
  • Mass density, kg/m3 ; Liquid
  • Mole fraction - 1; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Vibrating tube method
  • 667