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

Changes in Aggregation Patterns Detected by Diffusion, Viscosity, and Surface Tension in Water + 2-(Diethylamino)Ethanol Mixtures at Different Temperatures

Lampreia, I. M. S.[Isabel M. S], Santos, A. F. S.[Angela F.S.], Barbas, M. J. A.[Maria Joao A.], Santos, F. J. V.[Fernando J. V.], Lopes, M. L. S. M.[Manuel L. S. Matos]
J. Chem. Eng. Data 2007, 52, 6, 2388-2394
ABSTRACT
Mutual diffusion coefficients for 2-(diethylamino)ethanol (2) in water (1) were experimentally obtained by the Taylor dispersion technique from X2 = 0 to R:; 0.2, at T = 298 K and T = 303 K. Viscosities and surface tensions were measured in the entire composition range using capillary viscometry and ring tensiometry, respectively. Viscosities were measured at the above temperatures, and surface tensions were measured at intervals of 5 K in the temperature range from (283 to 303) K. Information about intermolecular interactions, hydration modes, and solute aggregation is provided through the combined study of the observed changes in diffusion coefficients, viscosities, and surface tension with composition. Conclusions obtained are compared with those taken from volumetric and optical properties for the same system.
Compounds
# Formula Name
1 C6H15NO (diethylamino)ethanol
2 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
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Vibrating tube method
  • 2
  • POMD
  • 1
  • 2
  • Surface tension liquid-gas, N/m ; Liquid
  • Temperature, K; Liquid
  • Mole fraction - 1; Liquid
  • Liquid
  • Air at 1 atmosphere
  • Ring tensiometer
  • 110
  • POMD
  • 1
  • 2
  • Binary diffusion coefficient, m2/s ; Liquid
  • Temperature, K; Liquid
  • Mole fraction - 1; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Taylor dispersion method
  • 25
  • POMD
  • 1
  • 2
  • Viscosity, Pa*s ; Liquid
  • Temperature, K; Liquid
  • Mole fraction - 1; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • CAPTUB:UFactor:2
  • 85