Odd-even effect on the formation of aqueous biphasic systems formed by 1-alkyl-3-methylimidazolium chloride ionic liquids and salts.

ABSTRACT: This work provides a comprehensive evaluation of the effect of the cation alkyl side chain length of the 1-alkyl-3-methylimidazolium chloride series ([C _n C₁im]Cl, n = 2-14) of ionic liquids (ILs) on their capability to form aqueous biphasic systems (ABSs) with salts and self-aggregation derived properties. The liquid-liquid phase behavior of ternary systems composed of [C _n C₁im]Cl, water, and K₃PO₄ or K₂CO₃ and the respective Setschenow salting-out coefficients (k_s ), a quantitative measure of the two-phase formation ability, were determined. An odd-even effect in the k_s values along the number of methylene groups of the longest IL cation alkyl

SUBMITTER: Belchior DCV 

PROVIDER: S-EPMC6166861 | biostudies-literature | 2018 May

REPOSITORIES: biostudies-literature