01569nas a2200145   4500008004100000245009900041210006900140260000800209300001000217490000700227520103500234100001701269700001601286856012101302       2017                        eng d00aComparable ionicity of the solutions of aprotic and protic ionic liquids by anion substitution0 aComparable ionicity of the solutions of aprotic and protic ionic  cJUN  a1-13 0 v463 aTemperature dependent molar conductances and fluidities of bisulfate and ethyl sulfate anion-based ionic liquids were measured. The extent of dissociation of the ionic liquids was estimated from the Walden plot in term of ionicity. The ionicity mainly depends on the magnitude of Coulombic forces, altered by the anion’s Lewis basicity. Aqueous solutions of aprotic ionic liquids, in general, possesses ionicity in the range of ≈70–99%. This article reveals that the substitution of the anion by bisulfate and ethylsulfate reduces the ionicity of aqueous solution of these ionic liquids to the range of 10–37%. This is very close to that exhibited by some of the protic ionic liquids and phosphonium based ionic liquids with sweetner anions. The concentration dependent molar conductance of these ionic liquids has been fitted to Mahiuddin and Ismail’s equation. To our surprise, the molar conductances of bisulfate-based aprotic ionic liquids are remarkably high, even though these ionic liquids possess lower ionicity.1 aJain, Preeti1 aKumar, Anil  uhttps://library.ncl.res.in/content/comparable-ionicity-solutions-aprotic-and-protic-ionic-liquids-anion-substitution