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

Solubility of 2,3,5,6-Tetrachloropyridine in Supercritical CO2: Measurement and Correlation

Cui, H.[Hongyou], Qian, S.[Shaosong], Qin, F.[Fei], Wang, C.[Chuanbo]
J. Chem. Eng. Data 2014, 59, 2, 269-274
ABSTRACT
2,3,5,6-Tetrachloropyridine (TCP) is an important chemical and intermediate for synthesis of pesticides and pharmaceuticals. The solubility of TCP in supercritical carbon dioxide was measured using a static analytical method at temperatures of 313 K, 323 K, and 333 K and pressures in the range of 10.0 MPa to 24.0 MPa. The result showed that TCP solubility increased with the increase of pressure at isothermal conditions, while it decreased with increasing temperature at isobaric conditions. The experimental data were correlated using four density-based models (Chrastil, Mendez-Santiago and Teja, Bartle, and Kumar and Johnston), respectively. The calculated results show good agreement with the experimental data.
Compounds
# Formula Name
1 C5HCl4N 2,3,5,6-tetrachloropyridine
2 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
  • 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
  • UV Spectrophotometry
  • 21