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

Liquid-Liquid Equilibria for Systems of 1-Butanol + Water + 2,6-Diaminopyridine and 1-Butanol + Water + 2-Aminopyridine

Xue, W.-L.[Wei-Lan], Zhang, C.-S.[Chuan-Shun], Zeng, Z.-X.[Zuo-Xiang], Chen, X.-H.[Xu-Hui]
J. Chem. Eng. Data 2009, 54, 4, 1266-1270
ABSTRACT
Liquid-liquid equilibrium (LLE) data were measured under atmospheric pressure for (1-butanol + water + 2,6-diaminopyridine) at (289.55, 300.65, and 317.05) K and for (1-butanol + water + 2-aminopyridine) at (295.85, 307.15, and 319.65) K. The experimental data were correlated by the Hand equation. The correlated tie line results were compared with the experimental ones, and good agreements were obtained with an average deviation of 3 %. Both the selectivities (S) and distribution ratios (K) of the aminopyridines were calculated from the LLE data, and the results showed that 1-butanol was a suitable solvent used for the extraction of the aminopyridines from water.
Compounds
# Formula Name
1 C5H7N3 pyridine-2,6-diamine
2 C5H6N2 2-pyridinamine
3 C4H10O butan-1-ol
4 H2O water
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
  • VISOBS
  • 1
  • POMD
  • 2
  • Normal melting temperature, K ; Crystal
  • Crystal
  • Liquid
  • Air at 1 atmosphere
  • VISOBS
  • 1
  • POMD
  • 3
  • 1
  • 4
  • Mole fraction - 3 ; Liquid mixture 1
  • Mole fraction - 1 ; Liquid mixture 2
  • Mole fraction - 3 ; Liquid mixture 2
  • Temperature, K; Liquid mixture 2
  • Mole fraction - 1; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 2
  • Liquid mixture 1
  • Liquid mixture 2
  • Chromatography
  • Chromatography
  • Chromatography
  • 42
  • POMD
  • 3
  • 2
  • 4
  • Mole fraction - 3 ; Liquid mixture 1
  • Mole fraction - 2 ; Liquid mixture 2
  • Mole fraction - 3 ; Liquid mixture 2
  • Temperature, K; Liquid mixture 2
  • Mole fraction - 2; Liquid mixture 1
  • Pressure, kPa; Liquid mixture 2
  • Liquid mixture 1
  • Liquid mixture 2
  • Chromatography
  • Chromatography
  • Chromatography
  • 42