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

Solubility of Ethanamide and 2-Propenamide in Supercritical Carbon Dioxide. Measurements and Correlation

Coelho, J. P. P.[Jose P.], Bernotaityte, K.[Karolina], Miraldes, M.[Marisa], Mendonca, A.[Andreia], Stateva, R. P.[Roumiana P.]
J. Chem. Eng. Data 2009, 54, 9, 2546-2549
ABSTRACT
Solubilities of ethanamide (acetamide) and 2-propenamide (acrylamide) in supercritical carbon dioxide were measured at T = (308.2, 318.2, and 333.2) K over the pressure range (9.0 to 40.0) MPa by a flow-type apparatus. The solubility of acetamide (2.3*10-4 to 31.3*10-4) in the overall region of measurements is approximately twice that of acrylamide (1.2*10-4 to 16.3*10-4). The solubility of both components increases with pressure, and the relative location of the crossover region is observed at about 12.0 MPa. The experimental data were correlated by using the Soave-Redlich-Kwong equation of state (EoS) with the one-fluid van der Waals mixing rule. In addition, the pure compound properties required for the modeling were also estimated.
Compounds
# Formula Name
1 C2H5NO ethanamide
2 C3H5NO propenamide
3 CO2 carbon dioxide
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
  • 3
  • 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)
  • Crystal - 1
  • gravimetric
  • 30
  • POMD
  • 2
  • 3
  • Mole fraction - 2 ; Fluid (supercritical or subcritical phases)
  • Temperature, K; Fluid (supercritical or subcritical phases)
  • Pressure, kPa; Fluid (supercritical or subcritical phases)
  • Fluid (supercritical or subcritical phases)
  • Crystal - 2
  • gravimetric
  • 28