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REACH registration for proionic's EMIM TFSI -
the perfect ionic liquid for electrolyte applications

proionic - Europe's sole supplier of EMIM TFSI at ton-scale
proionic is proud to announce to have gained REACH registration for its submitted substance EMIM TFSI (1-Ethyl-3-methylimidazolium bis(trifluoromethyls​ulfonyl)​imide (electronic grade)).
The decision of the EUROPEAN CHEMICALS AGENCY (ECHA) entitles proionic GmbH to produce a tonnage between 1 and 10 tonnes / year of EMIM TFSI.
An increasing demand for high-purity ionic liquids especially in the electronic and automotive industry induced the upscaling and REACH registration of EMIM TFSI. In addition to EMIM BF4, this is the second ionic liquid electrolyte available at ton-scale at proionic.

"Due to their high electrochemical stability, negligible vapor pressure & flammability as well as tunable solvation properties for the dissolution of electrochemically active species, a large number of implemented ionic liquid electrolyte applications exist", says Dr. Roland Kalb, CSTO & founder of proionic. "The increased safety and high-performance properties of IL based electrolytes add a fundamental value to corresponding technologies resulting in more economically viable processes", he adds. "Based on ECHA’s decision, proionic is now able to contribute to the competitiveness of ionic liquid based industrial technologies by enlarging its production capacity, as this goes along with a clear cost advantage for our customers", says Bernhard Ludwig, proionic's Head of Operations & Sales. 
Ionic liquid production processes at proionic are based on CBILS® and are designed to deliver constant high-quality of ultra-pure & halide-free ionic liquids. Additionally to cost- efficiency, quality aspects such as a remarkable low water content of < 20 ppm for EMIM TFSI produced at ton-scale meet industry's requirements.
Substance name: 1-Ethyl-3-methylimidazolium bis(trifluoromethyls​ulfonyl)​imide (electronic grade)
EC number: 700-235-5
CAS number: 174899-82-2
Assigned registration number: 01-2120825886-41-0000
Prices: Price development as a function of the quantity purchased
  • Price/kg from 1kg € 990
  • Price/kg from 10kg € 650
  • Price/kg from 150kg € 400
Profit from the economy of scale and order now
Ionic liquid electrolytes
Ionic liquids exhibit a unique combination of physicochemical properties that make them ideal candidates for electrolyte applications:
  • high electrochemical stability
  • broad liquid range
  • high conductivity
  • compatible with various electrode materials
  • neither flammable nor volatile
proionic´s electrolyte portfolio: EMIM BF4, EMIM TFSI, EMIM FSI, BMIM BF4, BMIM TFSI, BMPyrr TFSI

Applications of EMIM TFSI
  • Electrolyte for batteries & supercaps (in liquid or gel form)
  • Dye-sensitized solar cells
  • Radiational & thermal energy technology
  • Industrial organic chemicals, leather, fats, waxes
  • Cellulose, lignin, paper & other wood products
  • Fossil fuels, derivatives & related products
  • Plastics manufacture & processing
  • Optical, electron, mass spectroscopy & other related properties
  • Radiation chemistry, photochemistry and photographic & other reprographic processes
  • Chemistry of synthetic high polymers
  • Unit operations and processes (High temperature cooling)
Please contact us for your specific inquiry or further information
Bernhard Ludwig
Head of Operations & Sales

T: +43 (664) 889 339 40

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