%D 2014 %R 10.4028/www.scientific.net/AMR.917.45 %O cited By 4; Conference of International Conference on Process Engineering and Advanced Materials, ICPEAM 2012 ; Conference Date: 12 June 2012 Through 14 June 2012; Conference Code:106208 %J Advanced Materials Research %L scholars5156 %X This article reports on the estimation of solubility parameters using refractive index for a series of imidazolium-based ionic liquids (ILs) and their dependencies on the carbon number of alkyl sidechain of cation and anion. Gathering about 35 ILs of refractive indices data from the literature, the solubility parameters estimation fit well with the suggested correlation. The precision of the estimated solubility parameters obtained indicates that the refractive index-solubility parameters correlation can be an alternative tool to estimate solubility parameter value for ILs. © (2014) Trans Tech Publications, Switzerland. %K Estimation; Ionic liquids; Process engineering; Refractive index; Solubility, Carbon number; Imidazolium-based ionic liquid; Parameters correlations; Refractive index data; Side-chains; Solubility parameters, Parameter estimation %P 45-55 %C Kuala Lumpur %T Solubility parameters based on refractive index data of ionic liquid %V 917 %I Trans Tech Publications Ltd %A S.B. Abdullah %A Z. Man %A L. Ismail %A M.I.A. Mutalib %A M.A. Bustam