Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Equilibrium solubility of sodium 2-naphthalenesulfonate in binary (sodium chloride + water), (sodium sulfate + water), and (ethanol + water) solvent mixtures at temperatures from (278.15 to 323.15) K

Li, R.[Rongrong], Chen, H.[Hao], Zhu, H.[Huayue], Jiang, R.[Ru], Romano, S. L.[Stephen Louis], Chen, X.[Xiaoying], Han, D.[Deman]
J. Chem. Thermodyn. 2015, 83, 1-5
ABSTRACT
The equilibrium solubility of sodium 2-naphthalenesulfonate in binary (sodium chloride + water), (sodium sulfate + water), and (ethanol + water) solvent mixtures was measured at elevated temperatures from (278.15 to 323.15) K using a steady-state method. With increasing temperatures, the solubility increases in aqueous solvent mixtures. The results of these results were regressed by a modified Apelblat equation. The dissolution entropy and enthalpy determined using the method of the least-squares and the change of Gibbs free energy calculated with the values of DdiffSo and DdiffHo at T = 278.15 K.
Compounds
# Formula Name
1 C10H7NaO3S sodium 2-naphthalenesulfonate
2 Na2O4S sodium sulfate
3 ClNa sodium chloride
4 C2H6O ethanol
5 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
  • 5
  • 2
  • Mole fraction - 1 ; Liquid
  • Temperature, K; Liquid
  • Solvent: Mass fraction - 2; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Crystal - 1
  • Chromatography
  • 50
  • POMD
  • 1
  • 3
  • 5
  • Mole fraction - 1 ; Liquid
  • Temperature, K; Liquid
  • Solvent: Mass fraction - 3; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Crystal - 1
  • Chromatography
  • 50
  • POMD
  • 4
  • 1
  • 5
  • Mole fraction - 1 ; Liquid
  • Temperature, K; Liquid
  • Solvent: Mass fraction - 4; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Crystal - 1
  • Chromatography
  • 60
  • POMD
  • 1
  • 5
  • Mole fraction - 1 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Crystal - 1
  • Chromatography
  • 10