The infinite dilution binary diffusion coefficients D12 for aluminum acetylacetonate in supercritical CO2 were determined at (308.15 - 333.15) K and at (7.80 - 40.00) MPa by the chromatographic impulse response (CIR) method. And, the diffusion measurements in liquid ethanol were carried out at (300.15 - 333.15) K and at 0.10 and 30.00 MPa by the Taylor dispersion method. It was found that the D12 values measured in supercritical CO2 show slowing down in the region of near critical point. The determined activation energies of diffusion were 23.0, 13.7, 12.0, 11.3 kJ/mol at 12.00, 20.00, 25.00, 35.00 MPa in supercritical CO2 and 19.1 kJ/mol at 0.10 MPa in liquid ethanol, respectively. All determined 90 diffusion data in this study can be correlated with the equation of D12 [m2/s] = 1.558 10^-14 T [K] visocsity [Pa s]^-0.761 with average absolute relative deviation (AARD) of 5.6% over a wide fluid viscosity range from 2.462 x 10^-5 to 1.258 x 10^-3 Pa s.
Compounds
#
Formula
Name
1
C15H21AlO6
aluminum triacetylacetonate
2
CO2
carbon dioxide
3
C2H6O
ethanol
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.