Anomalous and not-so-common behavior in common ionic liquids and ionic liquid-containing systems

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This work highlights unexpected, not so well known responses of ionic liquids and ionic liquid-containing systems, which are reported in a collective manner, as a short review. Examples include: (i) Minima in the temperature dependence of the isobaric thermal expansion coefficient of some ILs; (ii) Viscosity Minima in binary mixtures of IL + Molecular solvents; (iii) Anomalies in the surface tension within a family of ILs; (iv) The constancy among IL substitution of Cp/Vm at and around room temperature; (v) ILs as glass forming liquids; (vi) Alternate odd-even side alkyl chain length effects; (vii) Absolute negative pressures in ILs and IL-containing systems; (viii) Reversed-charged ionic liquid pairs; (ix) LCST immiscibility behavior in IL + solvent systems.

Original languageEnglish
Article number450
JournalFrontiers in Chemistry
Issue numberJUN
Publication statusPublished - 1 Jun 2019



  • Ionic liquids
  • LCST
  • Odd-even effects
  • Reversed charge ILs
  • Surface tension
  • Thermal expansion coefficient
  • Unusual behavior
  • Viscosity

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