Description

1-Ethyl-3-Methylimidazolium 1,1,2,2-Tetrafluoroethanesulfonate is a high-purity ionic liquid belonging to the EMIM family, known for its unique combination of thermal stability and low volatility. This compound is valued for its role as a versatile, non-aqueous electrolyte and reaction medium in advanced electrochemical and synthetic applications. It is primarily sought by R&D and manufacturing sectors focused on energy storage, specialty catalysis, and high-performance materials.

Application

• Electrolyte for Lithium-Ion and Next-Generation Batteries: Used as a key component in electrolytes for enhancing safety, thermal stability, and performance in lithium metal and lithium-sulfur batteries.
• Supercapacitor and Double-Layer Capacitor (EDLC) Formulations: Serves as a high-voltage, conductive ionic liquid electrolyte for energy storage devices requiring high power density.
• Green Solvent for Catalysis and Synthesis: Acts as a recyclable, non-volatile solvent for various organic transformations, including Diels-Alder, Friedel-Crafts, and hydrogenation reactions.
• Gas Separation and Capture Media: Employed in supported ionic liquid membranes (SILMs) or absorbents for the selective separation of CO2 and other acidic gases.
• Lubricant and Additive for Advanced Tribology: Used as a base fluid or additive in lubricants for demanding conditions due to its low vapor pressure and high thermal stability.
• Electrodeposition and Metal Finishing: Functions as an electrolyte for the electroplating or electrorefining of reactive metals like aluminum and magnesium.

Basic Information

Product Name	1-Ethyl-3-Methylimidazolium 1,1,2,2-Tetrafluoroethanesulfonate
CAS No.	880084-63-9
Molecular Formula	C8H11F4N2O3S
Molecular Weight	291.25 g/mol
Synonyms	EMIM TFSI; 1-Ethyl-3-methylimidazolium tetrafluoroethanesulfonate; EMIM TES; [EMIM][TFES]; 1-Ethyl-3-methyl-1H-imidazol-3-ium 1,1,2,2-tetrafluoroethanesulfonate; EMIM 1,1,2,2-Tetrafluoroethanesulfonate; Ionic Liquid 880084-63-9
EINECS	Contact for details

Quality Control

Our 1-Ethyl-3-Methylimidazolium 1,1,2,2-Tetrafluoroethanesulfonate is produced under stringent quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity, Karl Fischer titration for water content, and ICP-MS for trace metal analysis, to ensure it meets exacting specifications for electrochemical and synthetic applications. Certificates of Analysis (COA) detailing all test results are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive). For long-term storage, consider handling and storing under an inert atmosphere (e.g., nitrogen or argon) to minimize moisture uptake and maintain optimal quality.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1000 ppm
Halide Content (Cl⁻, Br⁻)	≤ 100 ppm
Heavy Metals (as Pb)	≤ 10 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.