Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Experiment and model for the surface tension of MEA-PEG400 and DEA-PEG400 aqueous solutions

Fu, D.[Dong], Du, L.[LeiXia], Wang, H.[Hongmei]
J. Chem. Thermodyn. 2014, 69, 132-136
ABSTRACT
The surface tension (c) of monoethanolamine (MEA)-poly(ethylene oxide) 400 (PEG400) and diethanolamine (DEA)-PEG400 aqueous solutions was measured by using the BZY-1 surface tension meter. The temperatures ranged from (298.2 to 323.2) K. The mass fraction of amines and PEG400, respectively, ranged from 0.20 to 0.30 and from 0 to 0.10. A thermodynamic equation was proposed to model the surface tension of the binary and ternary mixtures. The calculated results agreed well with the experiments. The effects of temperature, mass fraction of amines and PEG400 on the surface tension were demonstrated on the basis of experiments and calculations.
Compounds
# Formula Name
1 C2H7NO 2-aminoethan-1-ol
2 C4H11NO2 diethanolamine
3 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
  • 3
  • Surface tension liquid-gas, N/m ; Liquid
  • Temperature, K; Liquid
  • Mass fraction - 1; Liquid
  • Liquid
  • Air at 1 atmosphere
  • Wilhelmy plate method
  • 12
  • POMD
  • 2
  • 3
  • Surface tension liquid-gas, N/m ; Liquid
  • Temperature, K; Liquid
  • Mass fraction - 2; Liquid
  • Liquid
  • Air at 1 atmosphere
  • Wilhelmy plate method
  • 12