Table 1 Ionic liquids used in this study

1-Methylimidazolium bis(trifluoromethylsulfonyl)imido

[MIM]NTf₂

Sigma-Aldrich

1-Ethylimidazolium nitrate

[EIM]NO₃

IoLiTec

1,3-Dimethylimidazolium dimethyl phosphate

[DMIM]DMP

IoLiTec

1,3-Dimethylimidazolium bis[oxalato(2-)-O,O′]borate

[DMIM]BOB

Merck

1-Ethyl-3-methylimidazolium chloride

[EMIM]Cl

TCI

1-Ethyl-3-methylimidazolium hydrogensulfate

[EMIM]HSO₄

TCI

1-Ethyl-3-methylimidazolium methylphosphate

[EMIM]MPO₄

Kanto Chemical

1-Ethyl-3-methylimidazolium acetate

[EMIM]Ac

Sigma-Aldrich

1-Ethyl-3-methylimidazolium hexafluorophosphate

[EMIM]PF₆

TCI

1-Ethyl-3-methylimidazolium tetrachloroaluminate

[EMIM]AlCl₄

Sigma-Aldrich

1-Ethyl-3-methylimidazolium tetracyanoborate

[EMIM]TCB

Merck

1-Ethyl-3-methylimidazolium ρ-toluenesulfonate

[EMIM]Tos

TCI

1-Ethyl-3-methylimidazolium methanesulfonate

[EMIM]Mes

IoLiTec

1-Butyl-3-methylimidazolium thiocyanate

[BMIM]SCN

TCI

1-Butyl-3-methylimidazolium tetrafluroborate

[BMIM]BF₄

TCI

1-Butylpyridinium bis(fluorosulfonyl)imido

[BPr]FSI

Kanto Chemical

1-Buthylpyridinium hexafluorophosphate

[BPr]PF₆

TCI

1-Methyl-1-propylpyrrolidinium hexafluorophosphate

[MPPyr]PF₆

IoLiTec

1-Methyl-1-propylpiperidinium hexafluorophosphate

[MPPip]PF₆

IoLiTec

Tetrabutylammonium chloride

[N₄₄₄₄]Cl

TCI

Tetrabutylammonium bromide

[N₄₄₄₄]Br

TCI

Tetrabutylammonium dichlorobromide

[N₄₄₄₄]Cl₂Br

TCI

Tetrabutylammonium azide

[N₄₄₄₄]N₃

TCI

Tetrabutylammonium salicylate

[N₄₄₄₄]Sal

TCI

Tributhylethylphosphonium diethylphosphate

[P₄₄₄₂]DEP

IoLiTec

Trihexyltetradecylphosphonium hexafluorophosphate

[P₁₄,₆₆₆]PF₆

IoLiTec

Trihexyltetradecyl decanoate

[P₁₄,₆₆₆]Dec

IoLiTec

Choline dihydrogen citrate

[Choline]Cit

TCI

Acetylcholine perchlorate

[Accholine]ClO₄

TCI

1-Hexyl-1,4-diaza[2,2,2]bicyclooctanium bis(trifluoromethylsulfonyl)imide

[HDABCO]NTf₂

IoLiTec