The Molarities of Ionic Liquid Species — Densities are not Boring | Zendy

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The Molarities of Ionic Liquid Species — Densities are not Boring

Author(s) -

Li Xiao

Publication year - 2002

Publication title -

ecs proceedings volumes

Language(s) - English

Resource type - Journals

eISSN - 2576-1579

pISSN - 0161-6374

DOI - 10.1149/200219.0964pv

Subject(s) - ionic liquid , chemistry , aqueous solution , molar volume , ion , mole fraction , molar concentration , alkali metal , phosphonium , inorganic chemistry , thermodynamics , organic chemistry , catalysis , physics

We have assembled density data for a wide range of ionic liquids, including molten single and mixed alkali metal salts and ambient temperature chloroaluminate liquids. It is simple to calculate the molarities of the ions present in most cases. We observe a range from ~35 M for Li and Cl in liquid LiCl to ~1.5 M for the ions of a particular phosphonium salt with values of 3 6 M for a selection of chloroaluminate liquids. Within chloroaluminate systems, the anion concentrations are determined (a) by the AlCl3 mole fraction but also (b) by the density which varies with the cation. Thus if the anion is a reactant, its reactivity should depend on the complete constitution of the liquid.

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