Ionic liquid

An ionic liquid is a liquid made mostly of ions. The term is sometimes used to just mean room-temperature ionic liquids, which are liquid at below 100 °C (212 °F). Molten salts are another type of ionic liquid.^[1]

Ionic liquids are sometimes called "designer solvents", as an ionic liquid be prepared with specific different cations and anions to produce liquids with specific chemical and physical properties.^[2]

The first room-temperature ionic liquid was ethylammonium nitrate.^[1]

Sources

1 2 IUPAC, Compendium of Chemical Terminology, 5th ed. (the "Gold Book") (2025). Online version: (2006–) "Ionic liquid". doi:10.1351/goldbook.08180
↑ Kaur, Gagandeep; Kumar, Harsh; Singla, Meenu (2022). "Diverse applications of ionic liquids: A comprehensive review". Journal of Molecular Liquids. 351 118556. doi:10.1016/j.molliq.2022.118556.

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[goldbook-1] 1 2 IUPAC, Compendium of Chemical Terminology, 5th ed. (the "Gold Book") (2025). Online version: (2006–) "Ionic liquid". doi:10.1351/goldbook.08180

[2] Kaur, Gagandeep; Kumar, Harsh; Singla, Meenu (2022). "Diverse applications of ionic liquids: A comprehensive review". Journal of Molecular Liquids. 351 118556. doi:10.1016/j.molliq.2022.118556.

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