Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Empirical Method to Predict Solubility in Supercritical Fluids.
Author Mitra, S. ; Wilson., N. K. ;
CORP Author Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Research and Exposure Assessment Lab.
Publisher c1991
Year Published 1991
Report Number EPA/600/J-91/187;
Stock Number PB91-233502
Additional Subjects Supercritical state ; Fluids ; Empirical equations ; Solubility ; Supercritical fluid chromatography ; Organic compounds ; Pressure ; Temperature ; Density(Mass/volume) ; Carbon dioxide ; Water ; Ethylene ; Ethane ; Reprints ;
Library Call Number Additional Info Location Last
NTIS  PB91-233502 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 11/26/1991
Collation 7p
The ability to predict the solubility of analytes in supercritical fluids is important in understanding supercritical fluid extraction (SFE) and supercritical fluid chromatography (SFC). In SFE, an analyte must dissolve in the supercritical solvent before it can be extracted. In SFC, the retention behavior of an analyte can be predicted once its solubility characteristics are known. Thermodynamic methods using a phase equilibrium approach have been used in the past to predict solubility in supercritical fluids. These methods usually involve complicated calculations and need some experimental data to compute unknown parameters. The authors have developed simple empirical methods for predicting solubility in supercritical fluids as a function of the prevailing temperature, pressure and density.