Print: | ISSN 0256-1115 |
Online: | ISSN 1975-7220 |
Korean Journal of Chemical Engineering,
Vol.14, No.4, 292-296, 1997 Measurement and Correlation of Solubilities of o-, m- and p-Coumaric Acid Isomers in Supercritical Carbon Dioxide
The solubility of isomeric o-, m- and p-coumaric acids in supercritical carbon dioxide were measured by a flow-type experimental apparatus at 308.15-323.15 K and 8.5-25 MPa. The data were modeled by an empirical density-based correlation and a recent EOS formulated by the authors based on approximated lattice-hole theory. We found that m-coumaric acid showed the highest solubility and o-coumaric acid showed the lowest solubility at the experimental pressures and temperatures.
Keywords:
Supercritical Fluid Extraction; Carbon Dioxide; Biosubstances Coumaric Acid Isomers; Thermodynamic Modeling
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