relation: https://khub.utp.edu.my/scholars/2217/
title: Densities, refractive indices and excess molar volumes for binary mixtures of protic ionic liquids with methanol at T = 293.15 to 313.15 K
creator: Kurnia, K.A.
creator: Taib, M.M.
creator: Abdul Mutalib, M.I.
creator: Murugesan, T.
description: Densities and refractive indices for the binary mixtures involving four different Protic Ionic Liquids (PILs) namely (2-Hydroxyethanaminium formate HEF + methanol), (2-Hydroxyethanaminium acetate HEA + methanol), (2-Hydroxyethanaminium propionate HEP + methanol), and (2-Hydroxyethanaminium lactate HEL + methanol) have been measured at the temperature range from 293.15 to 313.15 K and at atmospheric pressure. The excess molar volumes V E, refractive index deviations �nD for these binary mixtures were calculated and correlated using Redlich-Kister equation. The coefficients of thermal expansion α, were also calculated from these experimental data. The values of VE are negative for the entire mole fraction range covered for all these binary mixtures and increased with temperature, whereas the values of �nD are positive and also increased with temperature. The measured refractive indices were compared with those predicted using the Lorentz-Lorenz, Gladstone-Dale, and Eykman equations and a satisfactory agreement was found for all the binary systems (PILs + methanol) studied in the present work. © 2011 Elsevier B.V.
date: 2011
type: Article
type: PeerReviewed
identifier:   Kurnia, K.A. and Taib, M.M. and Abdul Mutalib, M.I. and Murugesan, T.  (2011) Densities, refractive indices and excess molar volumes for binary mixtures of protic ionic liquids with methanol at T = 293.15 to 313.15 K.  Journal of Molecular Liquids, 159 (3).  pp. 211-219.  ISSN 01677322     
relation: https://www.scopus.com/inward/record.uri?eid=2-s2.0-79952630435&doi=10.1016%2fj.molliq.2011.01.005&partnerID=40&md5=dbb0c12f8033919b81125917d666fff3
relation: 10.1016/j.molliq.2011.01.005
identifier: 10.1016/j.molliq.2011.01.005