Thermodynamics Research Center / ThermoML | Thermochimica Acta

Viscosities of aqueous LiI solutions at 293 525K and 0.1 40MPa

Abdulagatov, I. M.[Ilmutdin M.], Azizov, N. D.
Thermochim. Acta 2005, 439, 1-2, 8-20
ABSTRACT
The effects of temperature, pressure, and concentration on viscosity of aqueous LiI solutions were determined with a capillary-flowtechnique and compared with literature data and correlations. The data are interpreted with the extended Jones Dole equation for strong electrolytes to calculate the viscosity A-, B-, and D-coefficients. Good agreement was found between derived values of the viscosity A- and B-coefficients and the results predicted by Falkenhagen Dole theory of electrolyte solutions and calculated with the ionic B-coefficient data. It was found that the temperature coefficient, dB/dT > 0, for LiI(aq) is positive (structure-breaking ions). Physical meaning parameters V and E in the absolute-rate theory of viscosity and hydrodynamic molar volume Vk were calculated using present experimental viscosity data. The values of parameter E almost independent on temperature (around 11.1), while the values of parameter V monotonically decreasing as temperature increases. The Arrhenius Andrade parameters (A and Ea/R) were calculated from measured viscosity data. The predicted capability and validity of the various theoretical models for the viscosity of electrolyte solutions were tested.
Compounds
# Formula Name
1 H2O water
2 ILi lithium iodide
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
  • Viscosity, Pa*s ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Capillary tube (Ostwald; Ubbelohde) method
  • 16
  • POMD
  • 1
  • 2
  • Viscosity, Pa*s ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Molality, mol/kg - 2; Liquid
  • Liquid
  • Capillary tube (Ostwald; Ubbelohde) method
  • 196