1992 Volume 18 Issue 4 Pages 538-541
To contribute to the interpretation of liquid-phase adsorption, diffusion coefficients were measured for many kinds of aromatic compounds in water, methanol, ethanol and 1-propanol at 298.2 K by the schlieren cylindrical lens method.
The data were compared with estimated values from the Wilke-Chang correlation. It is shown that the diffusivities of phenols and aromatic amines are smaller than the estimated values, while those of sulfonic acids are larger. The mean deviation of the estimated values from the observed ones was found to be 11 % in the aqueous solutions and 23 % in the alcohols.
