Solubility of β-carotene in supercritical carbon dioxide and ethane

Solubilities of synthetic trans-β-carotene in supercritical carbon dioxide and ethane were measured, at temperatures from 35 to 60°C and pressures up to 300 bar, using a single-pass flow apparatus. The compound showed a low solubility in both solvents, but in ethane, its value was about an order of...

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Bibliographic Details
Published in:The Journal of supercritical fluids 1999-11, Vol.16 (2), p.99-106
Main Authors: Mendes, Rui L, Nobre, Beatriz P, Coelho, José P, Palavra, António F
Format: Article
Language:English
Subjects:
Carbon dioxide
Ethane
Solubility
Supercritical fluids
β-carotene
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Summary:Solubilities of synthetic trans-β-carotene in supercritical carbon dioxide and ethane were measured, at temperatures from 35 to 60°C and pressures up to 300 bar, using a single-pass flow apparatus. The compound showed a low solubility in both solvents, but in ethane, its value was about an order of magnitude higher. The solubility measurements were compared with those published by other workers, which used different methods for the determination of the concentration of β-carotene in supercritical fluids. Moreover, the solubility data were correlated using the Peng–Robinson equation of state.
ISSN:0896-8446
1872-8162
DOI:10.1016/S0896-8446(99)00029-7