Volumetric properties of binary mixtures of ionic liquid 1-butyl-3-methylimidazolium octylsulfate with water or propanol in the temperature range of 278.15 K to 328.15 K Orchillés, A.V.; González-Alfaro, V.; Miguel, P.J.; Vercher, E.; Martínez-Andreu, A.; The Journal of Chemical Thermodynamics 2006, 38, 1124-1129