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

Activity Coefficients and Volumetric Properties for the NaBr + Maltose + Water System at 298.15 K

Zhuo, K.[Kelei], Zhang, H.[Honghao], Wang, Y.[Yaping], Liu, Q.[Qian], Wang, J.[Jianji]
J. Chem. Eng. Data 2005, 50, 5, 1589-1595
ABSTRACT
Activity coefficients and volumetric properties for the NaBr + maltose + water system were determined at 298.15 K by cell potential and density measurements, respectively. The activity coefficients were evaluated respectively from the cell potential data using the Debye-Hu ckel and the Pitzer equations, and they are in quite agreement with each other. Infinite-dilution apparent molar volumes for maltose (V1/4,S 0 ) in aqueous NaBr and those for NaBr (V1/4,E 0 ) in aqueous maltose were evaluated, respectively. Free energy and volumetric interaction parameters (gES and vES) were also obtained. These results were discussed in terms of the stereochemistry of saccharide molecules and the group additivity model.
Compounds
# Formula Name
1 C12H22O11 D-maltose
2 H2O water
3 BrNa sodium bromide
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
  • 2
  • Mass density, kg/m3 ; Liquid
  • Mass fraction - 1; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Vibrating tube method
  • 6
  • POMD
  • 1
  • 3
  • 2
  • Mass density, kg/m3 ; Liquid
  • Solvent: Mass fraction - 1; Liquid
  • Molality, mol/kg - 3; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Vibrating tube method
  • 36