Transport and thermodynamic properties in low melting point ionic liquids related to n-alkyl chain length

Room-temperature ionic liquids (RTIL) are offering 'green' alternatives to organic solvents in industrial processes. Therefore, we propose here, with n-alkyl chain length as the focus, some inter-relationships involving transport as well as thermodynamic properties. Experimental work is suggested to examine whether (a) extended defect models of melting are useful for RTIL and (b) the product of surface tension and isothermal compressibility, which has the dimensions of length, varies systematically with the choice of anions as well as with the number of carbon atoms in the n-alkyl chain.