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Synthesis, characterization and thermophysical properties of three neoteric solvents-ionic liquids based on choline chloride

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Abstract

The authors prepared, characterized and preliminary studied the properties of some neoteric solvents-ionic liquids based on choline chloride, i.e., three ionic liquids based on the eutectics of choline chloride(2-hydroxy-N,N,N-trimethylethanaminium chloride) with, respectively, urea, malonic acid and citric acid. The obtained mixtures were clear and colorless ionic liquids at room temperature. The thermophysical properties, namely, density, viscosity, and electrical conductivity of these mixtures were investigated as a function of temperature within a range of 298–353 K. Correlations for the temperature dependence of the measured properties were generated and discussed in terms of Arrhenius theory. Finally the electrochemical windows of the eutectic liquids were determined.

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Authors and Affiliations

  1. Laboratory of Molten Salts, Ilie Murgulescu Institute of Physical Chemistry of the Romanian Academy, Bucharest, 006021, Romania

    Ana-Maria Popescu & Virgil Constantin

Authors
  1. Ana-Maria Popescu
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  2. Virgil Constantin
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Corresponding author

Correspondence to Virgil Constantin.

Additional information

Supported by the Romanian Ministry of Education, Research and Youth and the National Centre for Programme Management(CNMP), Romanian NCPM under the PNCDI 2-Partnership in Priority Areas(No.31066/2007-2010).

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Popescu, AM., Constantin, V. Synthesis, characterization and thermophysical properties of three neoteric solvents-ionic liquids based on choline chloride. Chem. Res. Chin. Univ. 30, 119–124 (2014). https://doi.org/10.1007/s40242-014-3346-1

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  • DOI: https://doi.org/10.1007/s40242-014-3346-1

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