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

Diffusion Coefficients of N2O in Aqueous Piperazine Solutions Using the Taylor Dispersion Technique from (293 to 333) K and (0.3 to 1.4) mol *dm-3

Hamborg, E. S.[Espen S.], Derks, P. W.[Peter W.], Kersten, S. R. A.[Sascha R. A.], Niederer, J. P. M.[John P. M.], Versteeg, G. F.[Geert F.]
J. Chem. Eng. Data 2008, 53, 7, 1462-1466
ABSTRACT
The diffusion coefficients of N2O in aqueous piperazine (PZ) solutions have been determined using the Taylor dispersion technique over a temperature range from (293 to 333) K and a concentration range from (0.3 to 1.4) mol *dm-3 PZ. The experimental results have been compared to literature values. Diffusion coefficients of N2O in aqueous PZ solutions can be estimated by using a modified Stokes-Einstein relation with sufficient accuracy for engineering purposes. The diffusion coefficient of CO2 in an aqueous PZ solution can be estimated by means of the N2O analogy . The use of the Taylor dispersion technique for determination of gas diffusivities in liquids is given in detail
Compounds
# Formula Name
1 N2O nitrous oxide
2 H2O water
3 C4H10N2 piperazine
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
  • 2
  • Self diffusion coefficient, m2/s ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Taylor dispersion method
  • 10
  • POMD
  • 2
  • 1
  • Binary diffusion coefficient, m2/s ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Mole fraction - 1; Liquid
  • Liquid
  • Taylor dispersion method
  • 10
  • POMD
  • 3
  • 2
  • 1
  • Binary diffusion coefficient, m2/s ; Liquid
  • Molality, mol/kg - 3; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Mole fraction - 1; Liquid
  • Liquid
  • Taylor dispersion method
  • 24