Aqueous Cross Second Virial Coefficients with the Hayden−O'Connell Correlation

Using new data tabulations involving water, the predictive combining rule of the Hayden−O'Connell correlation for cross second virial coefficients has been reformulated with a single binary parameter for pairs. Suggestions are made to estimate this parameter when data are not available. Using t...

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Bibliographic Details
Published in:Industrial & engineering chemistry research 2005-02, Vol.44 (3), p.630-633
Main Authors: Bishop, Kyle, O'Connell, John P
Format: Article
Language:English
Subjects:
Applied sciences
Chemical engineering
Exact sciences and technology
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Summary:Using new data tabulations involving water, the predictive combining rule of the Hayden−O'Connell correlation for cross second virial coefficients has been reformulated with a single binary parameter for pairs. Suggestions are made to estimate this parameter when data are not available. Using the binary parameters, new solvation parameter values have been found for substances that apparently solvate with water. In addition, an additive function has been formulated to improve the descriptions at high temperatures. With these modifications, much better agreement is found with experiment than with the original relations.
ISSN:0888-5885
1520-5045
DOI:10.1021/ie049267n