Ionic liquids are salts with a melting point below 100 °C. Their most important properties are:
Due to their large variety in possible cat- and anions they offer a large potential for solvent engineering in (bio)catalysis, electrochemistry, downstream processing etc. Typical cat- and anions are shown below. Very often, they are based on imidazolium cations. Other applications are in electrochemistry, solar cells ... .

Here you can download the lecture held at Biotrans 2003 in Olomouc as a PDF (1,3 MByte).