Alkylimidazolium Based Ionic Liquids: Mutual Solubilities and Thermophysical Properties, 12th International Chemical and Biological Engineering Conference 2014, Mónia A. R. Martins, Catarina M. S. S. Neves, Kiki A. Kurnia, Luís M. N. B. F. Santos, Mara G. Freire, Simão P. Pinho, João A. P. Coutinho, Porto, Portugal