Solubility of osthole in a binary system of ethanol and water

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• 作者：Guang-De Yang ; Cong Li ; Ai-Guo Zeng ; ^{agzeng@mail.xjtu.edu.cn} ; Qing-Hui Qu ; Xin Yang ; Xiao-Li Bian ; ^{bianxl@mail.xjtu.edu.cn}
• 关键词：Osthole ; Solubility ; Synergistic effect ; Enthalpy of dissolution ; Entropy of dissolution
• 刊名：Fluid Phase Equilibria
• 出版年：2012
• 期刊代码：32_03783812
• 类别：ce
• 出版时间：15 July, 2012
• 卷：325
• 期：Complete
• 页码：41-44
• 文件大小：227 K

摘要

The solubility of osthole in a binary system of ethanol and water was measured by UV spectrophotometry from 288.2 to 328.2 K. The solubility of osthole in the system increased with temperature. A synergistic effect appeared at x₂ = 0.5527 (equivalent to 80%ethanol, v/v) binary mixtures. Solubility data correlated with a modified Apelblat equation. The enthalpy and entropy of solution of osthole were evaluated using van鈥檛 Hoff plots.