Effect of 1-carboxymethyl-3-methylimidazolium chloride, [HOOCMMIM][Cl], ionic liquid on volumetric, acoustic and transport behavior of aqueous solutions of L-serine and L-threonine at T=298.15 K

Apparent molar volumes, V-phi, apparent molar isentropic compressibilities, K-s,K-phi, and relative viscosities, eta(r), for L-serine and L-threonine in aqueous solutions of 1-carboxymethyl-3-methylimidazolium chloride, [HOOCMMIK[Cl], and also aqueous solutions of [HOOCMMIM][Cl] have been obtained from solution density, sound velocity and viscosity measurements at T = 298.15 K and atmospheric pressure. These data are used to derive the standard partial molar volumes, 4, hydration number, (n(H)), standard partial molar isentropic compressibilities, K-s,phi(0), and viscosity B-coefficients of L-serine and L-threonine in aqueous [HOOCMMIM][Cl] solutions and for [HOOCMMIM][Cl] in water. The corresponding quantities of transfer from water to aqueous solutions of [HOOCMMIM][Cl], (Delta V-phi(0),Delta K-S,phi(0),Delta B), have also been obtained. The trends of transfer volumes have been interpreted by cosphere overlap model. (C) 2014 Elsevier B.V. All rights reserved.