Premium
Correlations for prediction of molecular diffusivities in liquids at infinite dilution
Author(s) -
Wong C. F.,
Hayduk W.
Publication year - 1990
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450680516
Subject(s) - formamide , dilution , alkane , chemistry , octane , propene , acetone , acetic acid , butanol , propane , diffusion , ethyl acetate , hexane , thermodynamics , analytical chemistry (journal) , chromatography , organic chemistry , hydrocarbon , ethanol , physics , catalysis
Diffusivities measured at 278.2 K to 323.2 K are reported for propene in acetic acid, acetone, n‐butanol, chloroben‐zene, N, N dimethyl formamide, ethyl acetate and n ‐octane. Measurements were made utilizing the steady‐state capil‐lary cell method. It was found that the diffusivities were reduced in the associating solvents when compared with those obtained in non‐polar solvents at the same temperature. Three new empirical correlations have been developed for the prediction of diffusivities in liquids at infinite dilution and these are: for n ‐alkane solutions, for dissolved gases in organic solvents, and for dissolved gases in water.