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DOI: 10.1021/acs.jced.8b00745
OpenAccess: Closed
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Solubility of Vitamin E Acetate in Supercritical Carbon Dioxide with Ethanol as Cosolvent

Jiangrui Cheng,Sai Han,Junying Song,Weifang Wang,Zhen Jiao

Solubility
Chemistry
Supercritical carbon dioxide
2018
Vitamin E acetate (VEA) has been widely used as medicines, nutrients, and cosmetic additives. Solubility data are generally used to aid the design of processes to prepare products that provide the required dosage of the active compound(s). In this study, the static cloud-point method is employed to determine the solubility of VEA in supercritical carbon dioxide (scCO2) with ethanol (0.5, 1.0, and 2.0 mol %) as the cosolvent at temperatures of 313.15, 318.15, 323.15, and 328.15 K, and pressures of 8–15 MPa. The results show that the solubility of VEA in scCO2 can be remarkably enhanced by adding ethanol as the cosolvent. It could also be increased with the enhancing pressure and the decreasing temperature at the constant ethanol concentration. Furthermore, some semiempirical models including Christil-G, K-J, Bartle, MST-S, Reddy, and Pérez are employed to correlate the experimental data. The average absolute relative deviations values of these models range from 2.43 to 6.86%, indicating that these models could well predict the VEA solubility data in scCO2 + ethanol systems of this study.
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    Solubility of Vitamin E Acetate in Supercritical Carbon Dioxide with Ethanol as Cosolvent” is a paper by Jiangrui Cheng Sai Han Junying Song Weifang Wang Zhen Jiao published in 2018. It has an Open Access status of “closed”. You can read and download a PDF Full Text of this paper here.