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Density and Excess Molar Volume of the Protic Ionic Liquid Bis(2-hydroxyethyl)ammonium Acetate with Alcohols

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Abstract

Densities were determined for binary mixtures containing the protic ionic liquid bis(2-hydroxyethyl)ammonium acetate [BHEAA] and an alcohol (methanol, ethanol, and 1-propanol) at four different temperatures (293.15, 303.15, 313.15, and 323.15) K and ambient pressure. Coefficients of thermal expansion and excess molar volumes were calculated from the experimental densities. The excess molar volumes were fitted using the Redlich-Kister polynomial equation. Negative deviations from ideal behavior of the excess molar volume were observed for all systems investigated in this study. The results were interpreted in terms of ion-dipole interactions and structural factors of the ionic liquid and alcohol. It was observed that an increase of the alcohol carbon chain length led to lower interactions on mixing.

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Authors and Affiliations

  1. Department of Chemical Engineering, Universiti Teknologi Petronas, Tronoh, 31750, Malaysia

    Kiki Adi Kurnia, M. I. Abdul Mutalib & T. Murugesan

  2. Department of Fundamental and Applied Sciences, Universiti Teknologi Petronas, Tronoh, 31750, Malaysia

    B. Ariwahjoedi

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  1. Kiki Adi Kurnia
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  2. B. Ariwahjoedi
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  3. M. I. Abdul Mutalib
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  4. T. Murugesan
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Correspondence to Kiki Adi Kurnia.

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Kurnia, K.A., Ariwahjoedi, B., Mutalib, M.I.A. et al. Density and Excess Molar Volume of the Protic Ionic Liquid Bis(2-hydroxyethyl)ammonium Acetate with Alcohols. J Solution Chem 40, 470–480 (2011). https://doi.org/10.1007/s10953-011-9658-6

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