Excess Molar Enthalpies of Binary Mixtures Containing 1-Methyl-3-octyl-imidazolium Tetrafluoroborate and Alcohols at T = 298.15 K

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• 作者：Dashuang Fan ; Handi Yin ; Dongxing Cai ; Zhencun Cui ; Weiguo Shen
• 刊名：Journal of Chemical & Engineering Data
• 出版年：2014
• 出版时间：March 13, 2014
• 年：2014
• 卷：59
• 期：3
• 页码：678-683
• 全文大小：305K
• 年卷期：v.59,no.3(March 13, 2014)
• ISSN：1520-5134

文摘

An isothermal titration calorimeter was used to measure the excess molar enthalpies (H^E) at T = 298.15 K for five binary systems: 1-methyl-3-octyl-imidazolium tetrafluoroborate (OmimBF₄) + alcohols (ethanol, 1-propanol, 2-propanol, 1-butanol, and 1-pentanol). The values of H^E were found to be all positive for the five systems and were fitted with the Redlich鈥揔ister polynomial and the UNIQUAC mode. The magnitude order of H^E for the five systems was explained by the balance between the magnitude orders of enthalpies of the alcohol/alcohol and the alcohol/OmimBF₄ interactions.