Correlation of the Cholesterol Solubilities in High-Pressure Carbon Dioxide with Association Model of Four Parameters

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Abstract The solubilities of cholesterol in high-pressure carbon dioxide were determined by a dynamic method under 10 MPa—30 MPa at 313 K—343 K.It was found that solubilities of cholesterol were from 1.0×10~(-6) to 1.0×10~(-4).Based on the principle of solvation reaction and the equilibrium constant affected by pressure and temperature,Chrastil model was modified and an association model of four parameters was established.Then the experimental solubility data were correlated by the association model.The results showed there was a good agreement between experimental data and calculational data of the solubilities of cholesterol in high-pressure carbon dioxide.

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Received 2008-05-15; published 2008-05-15

Cite this article:

LIU Bo,WEN Zhen,ZHENG Zong-kun,YOU Xin-kui,PU Yi-tao .Correlation of the Cholesterol Solubilities in High-Pressure Carbon Dioxide with Association Model of Four Parameters[J] Chemcial Industry and Engineering, 2008,V25(3): 189-193

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