BASIONICS™—BASF’s Portfolio of Ionic Liquids

Chemfiles Volume 5 Article 6

Under the trade name BASIONICS™, BASF offers a portfolio of Ionic Liquids—mainly based on imidazolium cations. The BASIONICS™ portfolio opens up a broad range of basic properties of Ionic Liquids and is classified into standard, acidic, basic, liquid at RT and low viscosity products and opens up a wide range of possible applications. All of these products are provided by Sigma-Aldrich on kg scale. The BASIONICS™ portfolio is available from BASF in 100 kg or ton scale with the same specification as offered by Sigma-Aldrich on sufficient notice.

Another important part of BASF’s concept in bringing Ionic Liquids in commercial quantities to the market is the definition of product quality. It is apparent that for any application the right set of specification parameters needs to be defined. For example, an Ionic Liquid that is used for dye-sensitized solar-cells has to be colorless, but if the same Ionic Liquid is used as a non-aqueous electrolyte in a galvanic process, the color has no relevance. In the non-aqueous electrolyte example, another parameter may have to be clearly defined. Hence, BASF works with the following concept: once a customer (either alone or in cooperation with BASF) has identified an Ionic Liquid suitable for a process or an application, the set of specification parameters (purity, by-products, halogen content, color, viscosity, etc.) will be defined in detail. Based on these specifications, the process for the commercial-scale production is designed.

It is important to note that the BASIONICS™ portfolio of Ionic Liquids is a living portfolio! It will be extended, but even more importantly, driven by customer requests. This is true for the cation as well as for the anion. Both parts of the molecule can be designed to the requirements of the specific application the customer demands. With the given technological expertise in chemical processing as well as existing value chains and raw materials from the “Verbund”, BASF is in a position to make a broad portfolio of Ionic Liquids available in commercial quantities and at reasonable prices.

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Application Examples

As described above, there are numerous publications on Ionic Liquids. The following are examples that present some applications where BASIONIC™ Ionic Liquids could be used.

Prod. # Name Applications
30764 1-Ethyl-3-methylimidazolium chloride (BASIONIC™ ST 80) precursors for the preparation of other Ionic Liquids by anion metathesis
38899 1-Butyl-3-methylimidazolium chloride (BASIONIC™ ST 70)
29164 1-Ethyl-3-methylimidazolium methanesulfonate (BASIONIC™ ST 35) electrodeposition of metals, e.g., titanium-aluminum or platinum-zinc alloys;1–3 esterification of starch;4 dissolution and delignification of lignocellulosic materials;5 dissolution of silk fibroin6
30881 1-Butyl-3-methylimidazolium methanesulfonate (BASIONIC™ ST 78)
38938 Methyl-tributylammonium methylsulfate (BASIONIC™ ST 62) electrochemical synthesis of organic compounds7
50365 1,2,3-Trimethylimidazolium methylsulfate (BASIONIC™ ST 99) production of organopolysiloxanes8
40477 Methylimidazolium chloride (BASIONIC™ AC 75) separation of acids from chemical reaction mixtures;9 halogenating agent and recyclable catalyst;10 electroplating bath for Tungsten11 and Molybdenum12
59760 Methylimidazolium hydrogensulfate (BASIONIC™ AC 39) extraction medium for removing impurities from aprotic solvents;13 synthesis of coumarins;14 solvent for GC-headspace;15 solvent and catalyst for Mannich-reaction,16 Friedel–Crafts-alkylations,17 and aromatic sulfonation18
56486 1-Ethyl-3-methylimidazolium hydrogensulfate (BASIONIC™ AC 25)
57457 1-Butyl-3-methylimidazolium hydrogensulfate (BASIONIC™ AC 28)
51059 1-Ethyl-3-methylimidazolium tetrachloroaluminate (BASIONIC™ AC 09) electrolyte for batteries;19 synthesis of polyisoolefins;20 reaction medium for Rh-catalyzed hydrogenations21 and Diels–Alder-reactions;22 extractive desulfuration of hydrocarbon fuels;23 reaction medium for synthesis and catalysis;24–26 polymerization of ethylene carbonate27
55292 1-Butyl-3-methylimidazolium tetrachloroaluminate (BASIONIC™ AC 01)
51053 1-Ethyl-3-methylimidazolium acetate (BASIONIC™ BC 01) electrolytes for non-aqueous capillary electrophoresis28
39952 1-Butyl-3-methylimidazolium acetate (BASIONIC™ BC 02)
51682 1-Ethyl-3-methylimidazolium ethylsulfate (BASIONIC™ LQ 01) extractive deep desulfuration;29 extraction of contaminant gases;30 lipase-catalyzed enantioselective acylation31
53177 1-Butyl-3-methylimidazolium methylsulfate (BASIONIC™ LQ 02)
43437 1-Ethyl-3-methylimidazolium thiocyanate (BASIONIC™ VS 01) electrolyte for dye-sensitized solar cells;32 electrolyte for dye-sensitized semiconductor-particles;33 solvent for the dissolution of cellulose with Ionic Liquids34
42254 1-Butyl-3-methylimidazolium thiocyanate (BASIONIC™ VS 02)
05338 1-Ethyl-2,3-dimethylimidazolium ethyl sulfate (BASIONIC™ ST 67)

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