Description

1‐Butyl‐3‐Ethylimidazolium Tetrafluoroborate is a high-purity ionic liquid belonging to the imidazolium salt family, valued for its excellent thermal stability and wide electrochemical window. This compound serves as a versatile, non-aqueous electrolyte and reaction medium, enabling advanced processes in energy storage and specialty synthesis. It is primarily sought by R&D and production teams in the electrochemical, battery technology, and catalysis sectors for developing next-generation materials and systems.

Application

• Electrolyte for Lithium-ion and Supercapacitors: Used as a key component in high-performance electrolytes due to its ionic conductivity and stability.
• Solvent for Catalysis and Organic Synthesis: Acts as a green, non-volatile solvent for various reactions, including Diels-Alder and Friedel-Crafts alkylation.
• Electroplating and Metal Deposition: Employed in electroplating baths for the deposition of metals and alloys from ionic liquid media.
• Gas Separation and Capture: Utilized in supported ionic liquid membranes (SILMs) for the selective absorption of gases like CO₂.
• Lubricant and Additive: Functions as a high-temperature lubricant or anti-wear additive in specialized mechanical systems.
• Analytical Chemistry: Serves as a stationary phase modifier in chromatography or a matrix in mass spectrometry.

Basic Information

Product Name	1‐Butyl‐3‐Ethylimidazolium Tetrafluoroborate
CAS No.	581101-91-9
Molecular Formula	C₉H₁₇BF₄N₂
Molecular Weight	240.05 g/mol
Synonyms	BEIM BF₄; [BEIM][BF₄]; 1-Butyl-3-ethylimidazolium tetrafluoroborate; 1-n-Butyl-3-ethylimidazolium tetrafluoroborate; 3-Ethyl-1-butylimidazolium tetrafluoroborate; B-3-E-IM BF4; Ionic Liquid [BEIM][BF₄]; Tetrafluoroboric acid 1-butyl-3-ethylimidazolium salt
EINECS	Contact for details

Quality Control

Our 1‐Butyl‐3‐Ethylimidazolium Tetrafluoroborate is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including NMR, HPLC, and Karl Fischer titration, to ensure high purity and consistency. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment to guarantee compliance with your research and production requirements.

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 should be handled under a dry inert atmosphere (e.g., nitrogen or argon) 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)	~1.20 g/cm³

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