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

Solubility of 1,5-Diaminobromo-4,8-dihydroxyanthraquinone in Supercritical Carbon Dioxide with or without Cosolvent

Tsai, C.-C.[Cheng-Chou], Lin, H. M.[Ho-Mu], Lee, M. J.[Ming-Jer]
J. Chem. Eng. Data 2009, 54, 5, 1442-1446
ABSTRACT
Dissolution of 1,5-diaminobromo-4,8-dihydroxyanthraquinone (C.I. Disperse Blue 56) in supercritical carbon dioxide was investigated at 393.15 K and 30 MPa over a wide range of contact times. Saturated solubility data of the disperse dyestuff in supercritical carbon dioxide with or without cosolvent were also measured at temperatures from (353.15 to 393.15) K and pressures up to 30 MPa. Either ethanol or dimethyl sulfoxide (DMSO) was used as a cosolvent. The experimental results showed that the equilibrium solubility can be effectively enhanced in the presence of both cosolvents. DMSO was found to yield higher solubility enhancement. The saturated solubility data were correlated with the Charstil and the Mendez-Santiago and Teja models. These two models correlated the solubility data to about within the experimental uncertainty.
Compounds
# Formula Name
1 C14H9BrN2O4 1,5-diaminobromo-4,8-dihydroxyanthraquinone
2 CO2 carbon dioxide
3 C2H6O ethanol
4 C2H6OS dimethyl sulfoxide
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
  • Triple point temperature, K ; Crystal
  • Crystal
  • Liquid
  • Gas
  • DTA
  • 1
  • POMD
  • 2
  • 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
  • Spectroscopy
  • 12
  • POMD
  • 3
  • 2
  • 1
  • Mole fraction - 1 ; Fluid (supercritical or subcritical phases)
  • Temperature, K; Fluid (supercritical or subcritical phases)
  • Pressure, kPa; Fluid (supercritical or subcritical phases)
  • Solvent: Mole fraction - 3; Fluid (supercritical or subcritical phases)
  • Fluid (supercritical or subcritical phases)
  • Crystal - 1
  • Spectroscopy
  • 21
  • POMD
  • 4
  • 2
  • 1
  • Mole fraction - 1 ; Fluid (supercritical or subcritical phases)
  • Pressure, kPa; Fluid (supercritical or subcritical phases)
  • Solvent: Mole fraction - 4; Fluid (supercritical or subcritical phases)
  • Temperature, K; Fluid (supercritical or subcritical phases)
  • Fluid (supercritical or subcritical phases)
  • Crystal - 1
  • Spectroscopy
  • 9