Density and sound speed study of hydration of 1-butyl-3-methylimidazolium based amino acid ionic liquids in aqueous solutions

摘要: Abstract Amino acid ionic liquids (AAILs) have huge potential in the field of protein chemistry, enzymatic reactions, templates for synthetic study etc. which is due to their distinctive properties like unique acid-base characteristics, tunable hydrophobicity, hydrogen bonding ability and strong hydration effects. To explore bio-ionic its real life applications sustainable technology development, it essential better understanding these newly researched liquid salts life’s most chosen medium, i.e. aqueous through physicochemical solutions. In this context, we are reporting herewith measurements analysis volumetric temperature range (293.15 313.25) K acoustic at 298.15 K concentration (0.05 0.5) mol · kg−1 solutions 1-butyl-3-methylimidazolium [Bmim] based amino liquids, prepared from glycine, l -alanine, -valine, -leucine -isoleucine. The experimental density sound speed data were used obtain apparent, partial limiting molar volumes as well isentropic isothermal compressibility properties. These been further understand electrostriction dependence internal pressure. numbers AAILs medium estimated using Passynski method compared with those obtained activity data. results explained terms cooperative effects, hydrophobic interactions, kosmotropic behavior AAILs,