Description

1‐Ethylimidazolium Bis(Trifluoromethylsulfonyl)Imide (CAS NO 353239-10-8) is a high-purity ionic liquid belonging to the imidazolium family, prized for its exceptional thermal stability and low viscosity. This compound serves as a versatile, non-aqueous electrolyte and solvent in advanced electrochemical and synthetic applications. It is essential for researchers and manufacturers in the energy storage, catalysis, and specialty chemical synthesis sectors who require reliable, high-performance materials.

Application

• Electrolyte for Lithium-ion Batteries and Supercapacitors: Used as a key component in high-voltage, non-flammable electrolytes to enhance safety and performance.
• Solvent for Catalysis and Organic Synthesis: Acts as a green, recyclable reaction medium for various organic transformations, including Diels-Alder and Friedel-Crafts reactions.
• Gas Separation and Capture Media: Employed in supported ionic liquid membranes (SILMs) for the selective separation of CO2 and other gases.
• Lubricant and Additive: Functions as a high-performance lubricant or anti-wear additive for demanding mechanical and aerospace applications.
• Electrodeposition and Metal Finishing: Serves as an electrolyte for the electroplating of reactive metals like aluminum and magnesium.
• Analytical Chemistry: Utilized as a stationary phase modifier in gas chromatography (GC) and capillary electrophoresis (CE).

Basic Information

Product Name	1‐Ethylimidazolium Bis(Trifluoromethylsulfonyl)Imide
CAS No.	353239-10-8
Molecular Formula	C8H11F6N3O4S2
Molecular Weight	391.31 g/mol
Synonyms	1-Ethyl-3H-imidazol-1-ium bis(trifluoromethanesulfonyl)imide; [EMIM][NTf2]; 1-Ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide (common misnomer); EMIM TFSI; EMIM NTf2; 1-Ethylimidazolium TFSI; Ethylmethylimidazolium bis(trifluoromethanesulfonyl)amide
EINECS	Contact for details

Quality Control

Our 1‐Ethylimidazolium Bis(Trifluoromethylsulfonyl)Imide is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including NMR, HPLC, and Karl Fischer titration, to ensure high chemical purity and consistent performance. Certificates of Analysis (COA) detailing purity, water content, and halide impurities are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive). For long-term storage, consider using an inert atmosphere or desiccant to maintain 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
Density (at 20°C)	~1.52 g/cm³

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