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

Solubility of Terephthalic Acid in Aqueous N-Methyl Pyrrolidone and N,N-Dimethyl Acetamide Solvents at (303.2 to 363.2) K

Guo, X.[Xia], Cheng, Y.-w.[You-wei], Wang, L.-j.[Li-jun], Li, X.[Xi]
J. Chem. Eng. Data 2008, 53, 7, 1421-1423
ABSTRACT
Experimental solubilities are reported for terephthalic acid (TA) in binary mixtures of N-methyl pyrrolidone (1) + water (2) and N,N-dimethyl acetamide (1) + water (2) in the temperature range of (303.2 to 363.2) K. The mole fraction of water in the N-methyl pyrrolidone + water solvent mixtures x2 ranges from 0 to 0.5791 and in the N,N-dimethyl acetamide + water solvent mixtures x2 ranges from 0 to 0.5477. The experimental results show that the solubility of TA increases significantly with an increase in temperature and decreases significantly with an increase in x2. The solubility data were correlated by a modified Buchowski equation.
Compounds
# Formula Name
1 H2O water
2 C8H6O4 1,4-benzenedicarboxylic acid
3 C5H9NO N-methylpyrrolidone
4 C4H9NO N,N-dimethylethanamide
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
  • 3
  • Mole fraction - 2 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Crystal - 2
  • Chromatography
  • 7
  • POMD
  • 2
  • 4
  • Mole fraction - 2 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Crystal - 2
  • Chromatography
  • 7
  • POMD
  • 2
  • 3
  • 1
  • Mole fraction - 2 ; Liquid
  • Temperature, K; Liquid
  • Mole fraction - 1; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Crystal - 2
  • Chromatography
  • 28
  • POMD
  • 2
  • 4
  • 1
  • Mole fraction - 2 ; Liquid
  • Temperature, K; Liquid
  • Mole fraction - 1; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Crystal - 2
  • Chromatography
  • 28