Description

1-Butyl-3-Methylimidazolium Tetrafluoroborate is a high-purity ionic liquid belonging to the [BMIM]+ cation family. This compound serves as a versatile, non-aqueous reaction medium and electrolyte, prized for its excellent thermal stability and wide electrochemical window. It is essential for researchers and manufacturers in advanced material synthesis, electrochemistry, and green chemistry processes seeking reliable, high-performance solvents.

Application

• Electrolyte component in supercapacitors, lithium-ion batteries, and other energy storage devices.
• Green solvent for catalysis and organic synthesis, including Diels-Alder and Friedel-Crafts reactions.
• Separation medium in gas chromatography (GC) and liquid-liquid extraction processes.
• Reaction medium for polymerization and advanced material fabrication.
• Additive for lubricants and functional fluids to modify thermal and tribological properties.
• Supporting electrolyte in electrodeposition and electrochemical studies.
• Component in sensor and actuator technologies.
• Solvent for biomass processing and dissolution of cellulose.

Basic Information

Product Name	1-Butyl-3-Methylimidazolium Tetrafluoroborate
CAS No.	174501-65-6
Molecular Formula	C8H15BF4N2
Molecular Weight	226.02 g/mol
Synonyms	BMIM BF4; 1-Butyl-3-methylimidazolium tetrafluoroborate; BMIM-BF4; [BMIM][BF4]; 1-n-Butyl-3-methylimidazolium tetrafluoroborate; Butylmethylimidazolium tetrafluoroborate; Ionic Liquid BMIM BF4; 1-Methyl-3-butylimidazolium tetrafluoroborate
EINECS	Contact for details

Quality Control

Our 1-Butyl-3-Methylimidazolium Tetrafluoroborate 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. A comprehensive Certificate of Analysis (COA) detailing purity, water content, and halide impurities is provided with every shipment to support your quality assurance protocols.

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) and must be kept under an inert atmosphere (e.g., nitrogen or argon) for long-term storage to prevent degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Halide Content (Cl⁻, Br⁻)	≤ 100 ppm
Density (at 20°C)	~1.21 g/cm³

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