Solubilities of a model compound (nicotinic acid) in pure supercritical carbon dioxide (SC-CO 2 ) and SC-CO 2 modiยฎed with methanol have been measured in the pressure range of 80ยฑ200 bar and between temperatures of 35 and 908C. On-line ultraviolet detection enabled a simple and relatively fast measu
Solubility of oleic acid in supercritical carbon dioxide
โ Scribed by N.R. Foster; S.L.J. Yun; S.S.T. Ting
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- English
- Weight
- 316 KB
- Volume
- 4
- Category
- Article
- ISSN
- 0896-8446
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โฆ Synopsis
The solubility isotherms of oleic acid at 35 and 45 "C have been determined. The data was correlated using the model proposed by Chrastil,t and as predicted, a linear relationship between the logarithm of the solubility and logarithm of the density was obtained. Some discrepancies between the solubility data obtained from this study and previously published data from other worker@ were observed. These discrepancies probably reflect differences in solute purity.
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The solubility of phenylacetic acid and vanillan in supercritical carbon dioxide were measured at 308.15 and 3 18.15 K over a pressure range of 80 to 200 bar. The applicability of several density-based correlations and the Peng-Robinson equation-of-state to the data obtained is examined. The possibl
Experimental phase equilibria for the ternary system consisting of supercritical carbon dioxide (SC-CO?) + methyl oleate + oleic acid were measured at 3 13.15 and 333.15 K and pressures up to 35 MPa. The equilibrium data were correlated using the Peng-Robinson equation-of-state with the Panagiotopou