Osmotic and activity coefficients in the solutions of 1- and 2-naphthol in methanol and ethanol at 298.15 K

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• 作者：Jaber Jahanbin Sardroodi ; Seyed Masood Seyed Ahmadian ; Gholam Reza Pazuki ; Moayad  ; Hossaini Sadr and Mahdi Esmaili
• 刊名：Calphad
• 出版年：2006
• 出版时间：September 2006
• 年：2006
• 卷：30
• 期：3
• 页码：326-333
• 全文大小：279 K

文摘

The osmotic coefficient of the solution, activity of the solvent and activity coefficient of the solute in solutions of 1- and 2-naphthol in methanol and ethanol have been measured by the isopiestic method. The experimental osmotic coefficient data were correlated using the Non-Random Two Liquid model (NRTL), the Non-Random Factor model (NRF), the two suffix Margules equation and a polynomial in terms of the molality of the solute. The models give reliable results for the correlation of the osmotic coefficient data. The activity coefficients of 1- and 2-naphthol were evaluated according to the considered methods using the parameters obtained by the correlation of osmotic coefficients.