Description

1-Butyl-2,3-Dimethylimidazolium Bis(Trifluoromethanesulfonyl)Imide is a high-purity ionic liquid belonging to the imidazolium cation family, prized for its exceptional thermal stability, wide electrochemical window, and low volatility. This compound is a critical advanced material for applications demanding superior ionic conductivity and chemical inertness under harsh conditions. It is primarily sought by R&D and manufacturing sectors in advanced battery technologies, specialty chemical synthesis, and high-performance lubricants.

Application

• Electrolyte Component for Lithium-Ion and Next-Generation Batteries: Used as a co-solvent or additive to enhance safety, thermal stability, and cycle life.
• Green Solvent for Catalysis and Organic Synthesis: Serves as a non-volatile, recyclable reaction medium for various coupling and polymerization reactions.
• Lubricant and Anti-Wear Additive: Applied in high-temperature or vacuum environments where traditional lubricants fail.
• Gas Separation and Capture Media: Utilized in supported ionic liquid membranes (SILMs) for selective CO2 separation.
• Electroplating and Metal Finishing: Acts as an electrolyte for the electrodeposition of metals and alloys.
• Supercapacitor and Electrochemical Device Fabrication: Employed to improve energy density and power performance.
• Analytical Chemistry: Used as a stationary phase in gas chromatography (GC) and other separation techniques.
• Pharmaceutical Intermediate: Functions as a solvent or catalyst in the synthesis of active pharmaceutical ingredients (APIs).

Basic Information

Product Name	1-Butyl-2,3-Dimethylimidazolium Bis(Trifluoromethanesulfonyl)Imide
CAS No.	350493-08-2
Molecular Formula	C12H19F6N3O4S2
Molecular Weight	447.42 g/mol
Synonyms	[BDMIm][TFSI]; [C4dmim][NTf2]; 1-Butyl-2,3-dimethylimidazolium bis(trifluoromethylsulfonyl)imide; 1-Butyl-2,3-dimethyl-1H-imidazol-3-ium 1,1,1-trifluoro-N-[(trifluoromethyl)sulfonyl]methanesulfonamide; BMMI TFSI; N-Butyl-2,3-dimethylimidazolium bis(trifluoromethanesulfonyl)imide; Ionic Liquid 104; Contact for details on additional trade names.
EINECS	Contact for details

Quality Control

Our 1-Butyl-2,3-Dimethylimidazolium Bis(Trifluoromethanesulfonyl)Imide is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including NMR, HPLC, and Karl Fischer titration, to ensure high purity and consistency suitable for demanding electrochemical and synthetic applications. A comprehensive Certificate of Analysis (COA) detailing purity, water content, halide content, and other critical parameters is provided with every shipment.

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). To prevent degradation and water absorption, containers should be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Water Content (Karl Fischer)	≤ 1000 ppm
Halide Content (Cl-, Br-, I-)	≤ 100 ppm
Density (at 20°C)	~1.45 g/cm³
Viscosity (at 20°C)	Contact for details

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