Measurement and correlation of solubility of abietic acid in ethanol + water mixtures

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• 作者：Weijian Nong ; Xiaopeng Chen ; Linlin Wang ; Jiezhen Liang ; Hailing Wang ; Yingying Huang ; Zhangfa Tong
• 关键词：Solubility ; Abietic acid ; (Solid  ; +  ; liquid) equilibrium ; Correlation
• 刊名：Journal of Chemical Thermodynamics
• 出版年：January, 2014
• 年：2014
• 卷：68
• 期：Complete
• 页码：199-204
• 全文大小：460 K

文摘

Using a laser monitoring observation technique, the solubility of abietic acid in (ethanol + water) mixtures was measured by a dynamic method at atmospheric pressure. The solubility of abietic acid increased with an increase of temperature and the concentration of ethanol. Experimental solubility data were correlated by means of the Wilson, NRTL and 位h equations utilizing parameters derived from the (solid + liquid) equilibrium (SLE) data. The results showed that the three equations are suitable for description of the solubility data of abietic acid in the (ethanol + water) mixtures investigated.