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

Thermodynamic Models for Determination of the Solubility of Dibenzothiophene in Different Solvents at Temperatures from (278.15 to 328.15) K

Zhang, Q.[Qi], Hu, Y.[Yonghong], Shi, Y.[Ying], Yang, Y.[Yang], Cheng, L.[Limin], Cao, C.[Cuicui], Yang, W.[Wenge]
J. Chem. Eng. Data 2014, 59, 9, 2799-2804
ABSTRACT
Data on corresponding solid liquid equilibrium of dibenzothiophene (DBT) in different solvents are essential for a preliminary study of industrial applications. In this study, the solubility behavior of DBT in different solvents, such as methanol, ethanol, isopropyl alcohol, butan-1-ol, formic acid, and acetonitrile at temperatures ranging from (278.15 to 328.15) K was investigated. An analytical stirred-flask method was employed to measure the dissolubility of DBT. For the temperature range investigated, the solubility of dibenzothiophene in the solvents increased with increasing temperature. The thermodynamic models, such as the Van t Hoff model, the modified Apelblat model and the Buchowski Ksiazaczak ?h model were investigated to describe the experimental data. It was found that the modified Apelblat model was the most suitable for predicting the solubility behavior of DBT with a temperature increment. The calculated thermodynamic parameters indicated that in each studied solvent the dissolution process of DBT is endothermic.
Compounds
# Formula Name
1 C12H8S dibenzothiophene
2 CH4O methanol
3 C2H6O ethanol
4 C3H8O propan-2-ol
5 C4H10O butan-1-ol
6 CH2O2 formic acid
7 C2H3N acetonitrile
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
  • Heating/Cooling curves
  • 1
  • POMD
  • 2
  • 1
  • Mole fraction - 1 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Crystal - 1
  • gravimetric
  • 11
  • POMD
  • 3
  • 1
  • Mole fraction - 1 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Crystal - 1
  • gravimetric
  • 11
  • POMD
  • 4
  • 1
  • Mole fraction - 1 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Crystal - 1
  • gravimetric
  • 11
  • POMD
  • 5
  • 1
  • Mole fraction - 1 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Crystal - 1
  • gravimetric
  • 11
  • POMD
  • 6
  • 1
  • Mole fraction - 1 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Crystal - 1
  • gravimetric
  • 11
  • POMD
  • 7
  • 1
  • Mole fraction - 1 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Crystal - 1
  • gravimetric
  • 11