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

High Solubility and Partial Molar Volume of 2,2'-Oxybis(N,N-bis(2-methoxyethyl)acetamide) in Supercritical Carbon Dioxide

Yang, Z.[Zhen], Yang, H.-J.[Hai-Jian], Tian, J.[Jia], Guo, C.-Y.[Cun-Yue], Kim, H.[Hakwon]
J. Chem. Eng. Data 2011, 56, 4, 1191-1196
ABSTRACT
2,2'-Oxybis(N,N-bis(2-methoxyethyl)acetamide) was synthesized and confirmed by IR, NMR, and elemental analysis. The solubility of this compound was measured at temperatures ranging from (313 to 333) K and pressures from (9.2 to 15.2) MPa in supercritical carbon dioxide. The synthesized compound showed high solubility in supercritical CO2 at easily accessible temperatures and pressures (e.g., 1.84 * 10-3 mol*L-1 at 9.2 MPa and 313 K). To confirm the tested solubility, the density-based correlations proposed by Bartle and Chrastil were investigated for the synthesized compound. The results showed good self-consistency of the data calculated using the Bartle semiempirical equation, which differed from the measured values by between (0.96 and 41.22) %. Better agreement with the experimental solubility data was obtained with the Chrastil model, for which average absolute relative deviations of less than 6 % were observed. The solubility data were also used to estimate the partial molar volume 2 for the compound in the supercritical phase using the theory developed by Kumar and Johnston.
Compounds
# Formula Name
1 CO2 carbon dioxide
2 C16H32N2O7 2,2'-oxybis(N,N-bis(2-methoxyethyl)acetamide)
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
  • 2
  • Vapor or sublimation pressure, kPa ; Liquid
  • Temperature, K; Liquid
  • Mole fraction - 2; Liquid
  • Liquid
  • Gas
  • Closed cell (Static) method
  • 15