Synthesis and thermophysical properties of imidazolium-based bronsted acidic ionic liquids

Muhammad, N. and Man, Z. and Elsheikh, Y.A. and Bustam, M.A. and Mutalib, M.I.A. (2014) Synthesis and thermophysical properties of imidazolium-based bronsted acidic ionic liquids. Journal of Chemical and Engineering Data, 59 (3). pp. 579-584.

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A range of imidazolium-based Bronsted acidic ionic liquids (ILs) have been synthesized by varying the side chain length of the alkyl and alkyl sulfonic group incorporated to the C1 and C3 positions in the imidazolium ring respectively with a fixed HSO4- anion. The synthesized ILs were characterized using NMR for structure confirmation and CHNS for elemental analysis. The thermal properties such as thermal decomposition temperature were determined using thermogravimetric analysis, and several key physical properties such as viscosity and density were measured within a temperature range of 20 C to 80 C using an Anton Paar viscometer and densitometer. The density measurement results and established equations were used to calculate the molecular volumes, standard entropies, crystal lattice energies, and thermal expansion coefficients of the synthesized ILs. © 2014 American Chemical Society.

Item Type: Article
Impact Factor: cited By 16
Uncontrolled Keywords: Decomposition; Meteorological instruments; Thermal expansion; Thermodynamic properties; Thermogravimetric analysis, Acidic ionic liquids; Crystal lattice energies; Imidazolium-based; Side chain lengths; Structure confirmation; Temperature range; Thermal decomposition temperature; Thermal expansion coefficients, Ionic liquids
Date Deposited: 25 Mar 2022 09:06
Last Modified: 04 Jan 2023 01:58

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