Studies of solute–solvent interactions of imidazolium-based ionic liquid in water and aqueous l-alanine solution via volumetric and compressibility properties at T = (293.15–313.15) K

•Compressibility parameters of IL in mixed aqueous l-alanine solutions are reported.•Molecular interactions of [EMIm][MeSO4] in aqueous l-alanine solution are studied.•Vϕ values are higher in mixed aqueous l-alanine solution than in water.•Cosmotropic nature of imidazolium-based ionic liquid is predicted from the study.•Transfer properties support the existence of interaction between l-alanine and IL.