Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Solubility and solution thermodynamics of 2,3,4,5-tetrabromothiophene in (ethanol + trichloromethane) binary solvent mixtures

Yang, W.[Wenge], Wang, C.[Chaoyuan], Hu, Y.[Yonghong], Li, Y.[Yihua], Wang, K.[Kai]
Fluid Phase Equilib. 2014, 363, 276-281
ABSTRACT
The solubility of 2,3,4,5-tetrabromothiophene in a (ethanol + trichloromethane) binary solvent mixturewas measured in the temperature ranging from 278.15 K to 322.15 K. The results obtained from these measurements were fitted using the two variants of the combined nearly ideal binary solvent/Redlich- Kister(CNIBS/R-K) equation and the Jouyban-Acree equation, respectively. All the three equations were proven to give good representations of the experimental data. Computational results showed that the variant 2 of CNIBS/R K equation was superior to the other two equations. In addition, the thermodynamic propertiesof the solution process, including the Gibbs energy, enthalpy, and entropy were calculated by the van't Hoff analysis. The experimental results showed that ethanol could be used as effective anti-solvents inthe crystallization process.
Compounds
# Formula Name
1 C4Br4S perbromothiophene
2 C2H6O ethanol
3 CHCl3 trichloromethane
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
  • Normal melting temperature, K ; Crystal
  • Crystal
  • Liquid
  • Air at 1 atmosphere
  • DTA
  • 1
  • POMD
  • 2
  • 3
  • 1
  • Mole fraction - 1 ; Liquid
  • Temperature, K; Liquid
  • Solvent: Mole fraction - 2; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Crystal - 1
  • gravimetric method
  • 96
  • POMD
  • 3
  • 1
  • Mole fraction - 1 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Crystal - 1
  • gravimetric method
  • 12
  • POMD
  • 2
  • 1
  • Mole fraction - 1 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Crystal - 1
  • gravimetric method
  • 12