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

Saturation Composition and Density Data for the Sodium Sulfate + Sulfuric Acid + Methanol System

Hash, J.[Juliana], Okorafor, O. C.[Ogbonnaya C.]
J. Chem. Eng. Data 2005, 50, 2, 468-470
ABSTRACT
The solubility of sodium sulfate in the concentrated sulfuric acid + methanol system was determined at temperatures of (273, 293, 303, 313, and 323) K. The saturation densities were also determined. The solubility increased with increasing temperature until about 323 K. When the result of this study was compared with an earlier study7 of solubility for the sodium sulfate + water + aqueous methanol system, the solubility values of the present system were greater at all comparable temperatures. This may be due to the fact that "like dissolves like". In this case, the SO42- anion is common to both sulfuric acid and sodium sulfate, whereas in the former study, it is not. Moreover, compounds containing the SO42- anion are known to be less soluble in water.
Compounds
# Formula Name
1 Na2O4S sodium sulfate
2 H2O4S sulfuric acid
3 CH4O methanol
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
  • 3
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Vibrating tube method
  • 5
  • POMD
  • 3
  • 1
  • Mass ratio of solute to solvent ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Crystal - 1
  • wet residue method
  • 5
  • POMD
  • 3
  • 1
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Crystal - 1
  • Vibrating tube method
  • 5
  • POMD
  • 3
  • 2
  • 1
  • Mass ratio of solute to solvent - 1 ; Liquid
  • Temperature, K; Liquid
  • Solvent: Mass ratio of component to other component of binary solvent - 3; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Crystal - 1
  • wet residue method
  • 50
  • POMD
  • 3
  • 2
  • 1
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Solvent: Mass ratio of component to other component of binary solvent - 3; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Crystal - 1
  • Vibrating tube method
  • 50