Density, speed of sound, and electrical conductance of ionic liquid 1-hexyl-3-methyl-imidazolium bromide in water at different temperatures Export

@article{citeulike:3740167, abstract = {Densities, speeds of sound, and electrical conductances in the aqueous solutions of room temperature ionic liquid, 1-hexyl-3-methyl-imidazolium bromide, [HMIm]Br were measured at temperatures T = (283.15 to 308.15) K and atmospheric pressure. Apparent molar volumes V[phi], isentropic compressibilities [kappa]S, apparent molar isentropic compressibilities [kappa][phi], and molar conductivities [Lambda] were determined. The corresponding limiting apparent molar quantities were found by extrapolation to infinite dilution with using Redlich-Mayer equation. The obtained limiting apparent molar quantities at different temperatures indicate that (ion + solvent) interactions in the studied system. Limiting apparent molar expansibility values for aqueous solutions of this ionic liquid have a positive values. The value of was found small and negative which indicating the ionic liquid under study is predominantly a structure breaker. Isentropic compressibility isotherms intersect approximately at a concentration m = 1.5825 mol · kg-1, which may be an indication of the structural interactions and clathrate formation. Calculated ion association constant Ka values increase with increasing temperature show that the extent of ion association increases with increasing temperature.}, author = {Shekaari, Hemayat and Mansoori, Yagoub and Sadeghi, Rahmat}, citeulike-article-id = {3740167}, citeulike-linkout-0 = {http://dx.doi.org/10.1016/j.jct.2008.01.003}, citeulike-linkout-1 = {http://www.sciencedirect.com/science/article/B6WHM-4RJYV99-2/2/76cae22d44b36fa7c00b9253f3d29cce}, doi = {10.1016/j.jct.2008.01.003}, issn = {0021-9614}, journal = {The Journal of Chemical Thermodynamics}, keywords = {1-hexyl-3-methyl-imidazolium, apparent, bromide, clathrate, compressibility, conductivity, ionic, isentropic, liquid, liquids, molar, rtil, volume}, month = {May}, number = {5}, pages = {852--859}, posted-at = {2008-12-03 13:17:25}, priority = {2}, title = {Density, speed of sound, and electrical conductance of ionic liquid 1-hexyl-3-methyl-imidazolium bromide in water at different temperatures}, url = {http://dx.doi.org/10.1016/j.jct.2008.01.003}, volume = {40}, year = {2008} }

TY - JOUR ID - citeulike:3740167 L3 - citeulike-article-id:3740167 N2 - Densities, speeds of sound, and electrical conductances in the aqueous solutions of room temperature ionic liquid, 1-hexyl-3-methyl-imidazolium bromide, [HMIm]Br were measured at temperatures T = (283.15 to 308.15) K and atmospheric pressure. Apparent molar volumes V[phi], isentropic compressibilities [kappa]S, apparent molar isentropic compressibilities [kappa][phi], and molar conductivities [Lambda] were determined. The corresponding limiting apparent molar quantities were found by extrapolation to infinite dilution with using Redlich-Mayer equation. The obtained limiting apparent molar quantities at different temperatures indicate that (ion + solvent) interactions in the studied system. Limiting apparent molar expansibility values for aqueous solutions of this ionic liquid have a positive values. The value of was found small and negative which indicating the ionic liquid under study is predominantly a structure breaker. Isentropic compressibility isotherms intersect approximately at a concentration m = 1.5825 mol · kg-1, which may be an indication of the structural interactions and clathrate formation. Calculated ion association constant Ka values increase with increasing temperature show that the extent of ion association increases with increasing temperature. IS - 5 JF - The Journal of Chemical Thermodynamics SN - 0021-9614 EP - 859 TI - Density, speed of sound, and electrical conductance of ionic liquid 1-hexyl-3-methyl-imidazolium bromide in water at different temperatures VL - 40 SP - 852 KW - 1-hexyl-3-methyl-imidazolium KW - apparent KW - bromide KW - clathrate KW - compressibility KW - conductivity KW - ionic KW - isentropic KW - liquid KW - liquids KW - molar KW - rtil KW - volume AU - Shekaari, Hemayat AU - Mansoori, Yagoub AU - Sadeghi, Rahmat PY - 2008/05// UR - http://dx.doi.org/10.1016/j.jct.2008.01.003 ER -