1-Ethyl-3-Methylimidazolium Tetrafluoroborate ([EMIM][BF₄])

Overview

1-Ethyl-3-Methylimidazolium Tetrafluoroborate, commonly known as [EMIM][BF₄], is one of the most widely studied and commercially available ionic liquids (ILs). With its exceptional combination of thermal stability, low volatility, high ionic conductivity, and environmental friendliness, [EMIM][BF₄] has become a preferred choice in both academic research and industrial applications.

At Hainan Sincere Industries Co., Ltd., we specialize in the production and global supply of high-purity ionic liquids, including [EMIM][BF₄]. We provide consistent quality, scalable supply, and technical support to customers in energy storage, catalysis, separation, and green chemistry.

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Chemical Information

• Product Name: 1-Ethyl-3-Methylimidazolium Tetrafluoroborate

• Molecular Formula: C₆H₁₁BF₄N₂

• CAS Number: 143314-16-3

• Molecular Weight: 197.97 g/mol

• Appearance: Colorless to pale yellow liquid

• Purity: 99%

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Key Features and Properties

• Wide Electrochemical Window: Stable performance under high voltage conditions.

• High Ionic Conductivity: Ideal for use in energy devices and electrochemical systems.

• Low Vapor Pressure: Non-volatile and non-flammable, ensuring safer handling.

• Excellent Thermal Stability: Maintains performance under elevated temperatures.

• Environmental Compatibility: Recyclable and reusable, aligning with green chemistry principles.

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Applications of [EMIM][BF₄]

1. Electrochemistry and Energy Storage

[EMIM][BF₄] is a popular ionic liquid electrolyte in supercapacitors and lithium-ion batteries, thanks to its high ionic conductivity and wide electrochemical stability window. Studies have shown that [EMIM][BF₄]-based electrolytes improve energy density, charge/discharge efficiency, and cycle stability in electrochemical systems.

2. Green Chemistry and Catalysis

In organic synthesis, [EMIM][BF₄] serves as both a reaction medium and catalyst, replacing volatile organic solvents (VOCs). It promotes selectivity, reaction rate, and product yield, while reducing environmental hazards.
It has been widely applied in Friedel–Crafts reactions, Diels–Alder cycloadditions, and oxidation processes.

3. Separation and Extraction

Due to its unique solvation properties, [EMIM][BF₄] is effective for liquid–liquid extraction, metal ion recovery, and CO₂ capture. The ionic liquid can selectively dissolve target compounds, making it valuable for environmental purification and resource recycling applications.

4. Materials Science and Nanotechnology

In nanomaterials synthesis, [EMIM][BF₄] functions as a template or stabilizing medium, allowing precise control of particle size, morphology, and surface properties. It is also used in conductive polymer composites and electrochromic devices.

5. Analytical Chemistry

Researchers have employed [EMIM][BF₄] in chromatographic separations and spectroscopic analyses to enhance sensitivity and reproducibility, especially in ion mobility and mass spectrometry studies.

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Why Choose Hainan Sincere Industries Co., Ltd.

With years of experience in ionic liquid synthesis and export, we provide:

• Reliable bulk supply of [EMIM][DCA], [BMIM][BF₄]…

• Strict quality control and analytical certification (COA, MSDS)

• Fast and safe global delivery

• Technical support for R&D and industrial customers

We are committed to empowering industries with innovative and sustainable ionic liquid solutions.