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A steady'state capillary cell method for measuring gas‐liquid diffusion coefficients
Author(s) -
Malik V. K.,
Hayduk W.
Publication year - 1968
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.5450460614
Subject(s) - capillary action , heptane , carbon dioxide , methane , diffusion , steady state (chemistry) , chemistry , hexane , gaseous diffusion , analytical chemistry (journal) , thermodynamics , chromatography , organic chemistry , physics , electrode
A simple method for measuring diffusion coefficients of gases in liquids using capillary cells has been shown to give accurate results for the diffusivities of carbon dioxide in water, methane in carbon tetrachloride, and carbon dioxide in ethanol when compared with reported values. Diffusivities were also measured at 30°C. for ethane in n‐hexane and ethane in n‐heptane, and at 40°C. for ethane in n‐heptane. The steady‐state capillary cell technique appears to be capable of giving reliable diffusivities for a large number of gas‐liquid systems.