Correlation of the Cholesterol Solubilities in High-Pressure Carbon Dioxide with Association Model of Four Parameters
LIU Bo,WEN Zhen,ZHENG Zong-kun,YOU Xin-kui,PU Yi-tao (College of Chemistry & Chemical Engineering,Shenzhen University,Shenzhen 518060,Guangdong Province,China)
(College of Chemistry & Chemical Engineering,Shenzhen University,Shenzhen 518060,Guangdong Province,China
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.
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, 2008,25(3): 189-193
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2008, Vol. 25 
