1. IoLiTec Ionic Liquids Technologies GmbH; Salzstraße 184 74076 Heilbronn Germany
2. New Business-Chemicals/Ionic Liquids (NB-C) Merck KG&A NB-C; D1/311 Frankfurter Str 250 64293 Darmstadt Germany
3. Merck KG&A PLS R&D LSS Ionic Liquids 1; Frankfurter Str 250 64271 Darmstadt Germany
4. University of Leicester; Department of Chemistry; University Road Leicester LE1 7RH UK