Please use this identifier to cite or link to this item: http://hdl.handle.net/10321/1591
Title: Influence of the alkyl group on thermophysical properties of carboxylic acids in 1-butyl-3-methylimidazolium thiocyanate ionic liquid at various temperatures
Authors: Redhi, Gan G. 
Ebenso, Eno E. 
Singh, Suren 
Bahadur, Indra 
Ramjugernath, Deresh 
Keywords: Density;Sound Velocity;Ionic Liquid;Carboxylic acid;Redlich-Kister polynomial equation
Issue Date: 2015
Publisher: Elsevier
Source: Singh, S. et al. 2015. Influence of the alkyl group on thermophysical properties of carboxylic acids in 1-butyl-3-methylimidazolium thiocyanate ionic liquid at various temperatures. Journal of Chemical Thermodynamics. 89 : 104-111.
Abstract: In the present study, influence of the alkyl group and temperature on the interactions between the carboxylic acid and ionic liquid (IL) mixtures were discussed in term of density and sound velocity measurements. The IL used in this study was 1-butyl-3-methylimidazolium thiocyanate ([BMIM]+[SCN]−). The density (ρ), and sound velocity (u), of the IL, acetic acid, propionic acid, and their corresponding binary systems {[BMIM]+[SCN]− (x1) + acetic or propionic acid (x2)} have been measured at T = (293.15, 298.15, 303.15, 308.15 and 313.15) K and at p = 0.1 MPa. The excess molar volumes, View the MathML sourceVmE, isentropic compressibility, κs, and deviation in isentropic compressibility, Δκs, were calculated using experimental density and sound velocity data, respectively. The Redlich–Kister polynomial equation was used to fit the excess/deviation properties. These results are useful for describing the intermolecular interactions that exist between the IL and carboxylic acid mixtures.
URI: http://hdl.handle.net/10321/1591
ISSN: 0021-9614
Appears in Collections:Research Publications (Applied Sciences)

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