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

Solubilities of C.I. Disperse Orange 25 and C.I. Disperse Blue 354 in Supercritical Carbon Dioxide

Shinoda, T.[Takashi], Tamura, K.[Kazuhiro]
J. Chem. Eng. Data 2003, 48, 4, 869-873
ABSTRACT
Solubilities of C.I. Disperse Orange 25 (3-[N-ethyl-4-(4-nitrophenylazo)phenylamino]propionitrile) and C.I. Disperse Blue 354 ([2-[[4-(dihexylamino)-2-methylphenyl]methylene]-1,1-dioxidobenzo[b]thien-3(2H)-ylidene]propanedinitrile) in supercritical carbon dioxide were measured by a flow-type apparatus. The solubility measurements were carried out at the temperature range from (323.15 to 383.15) K and the pressures from (10.0 to 30.0) MPa. The solubility of the dyes was examined in terms of pressure, temperature, and the density of supercritical carbon dioxide. An empirical equation was used to correlate the experimental solubilities of the dyes in terms of the density of carbon dioxide. Furthermore, the experimental data were represented successfully using a modified form of the PRSV (Peng-Robinson-Stryjek-Vera) EOS (equation of state), where vapor pressures and molar volumes of the dyes were calculated simultaneously.
Compounds
# Formula Name
1 C31H37N3O2S ([2-[[4-(dihexylamino)-2-methylphenyl]methylene]-1,1-dioxidobenzo[b]thien-3(2H)-ylidene]propanedinitrile)
2 C17H17N5O2 propanenitrile, 3-[ethyl[4-[(4-nitrophenyl)azo]phenyl]amino]-
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
  • 3
  • 1
  • 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
  • OTHER
  • 18
  • POMD
  • 3
  • 2
  • 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
  • OTHER
  • 16