Description

1-Ethyl-3-Methylimidazolium Tetrafluoroborate is a high-purity ionic liquid belonging to the EMIM-BF4 class. This compound serves as a versatile, non-aqueous electrolyte and reaction medium prized for its excellent electrochemical stability and low volatility. It is a critical material for researchers and manufacturers in advanced battery technology, electroplating, and green chemistry synthesis who require a stable, conductive, and tunable solvent system.

Application

• Electrolyte for Advanced Batteries: Used as a key component in electrolytes for lithium-ion, supercapacitors, and other energy storage devices due to its wide electrochemical window and thermal stability.
• Electroplating & Surface Finishing: Serves as a non-aqueous bath for the electrodeposition of metals like aluminum, titanium, and semiconductors, enabling processes impossible in aqueous solutions.
• Green Solvent for Synthesis: Acts as an environmentally benign alternative to volatile organic compounds (VOCs) in organic synthesis, catalysis, and separation processes.
• Gas Capture & Separation: Employed in supported ionic liquid membranes (SILMs) for the selective absorption and separation of gases like CO2 and SO2.
• Lubricants & Additives: Functions as a high-performance lubricant or additive for advanced mechanical systems, offering low vapor pressure and high thermal stability.
• Analytical Chemistry: Utilized as a stationary phase modifier in chromatography and as a matrix in mass spectrometry for improved analysis of complex mixtures.

Basic Information

Product Name	1-Ethyl-3-Methylimidazolium Tetrafluoroborate
CAS No.	143314-16-3
Molecular Formula	C6H11BF4N2
Molecular Weight	197.97 g/mol
Synonyms	EMIM-BF4; EMIM BF4; 1-Ethyl-3-methylimidazolium BF4; [EMIM][BF4]; 1-Ethyl-3-methyl-1H-imidazol-3-ium tetrafluoroborate; 3-Ethyl-1-methylimidazolium tetrafluoroborate; Ionic Liquid 1; 1-Methyl-3-ethylimidazolium tetrafluoroborate
EINECS	Contact for details

Quality Control

Our 1-Ethyl-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. Certificates of Analysis (COA) detailing exact specifications for purity, water content, and halide impurities are provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. This product is hygroscopic (moisture-sensitive) and must be stored in a cool, dry place, ideally under an inert atmosphere such as argon or nitrogen to maintain purity. Recommended long-term storage temperature is 2-8°C. Allow the container to reach room temperature before opening to prevent moisture condensation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (NMR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1000 ppm
Halide Content (Cl⁻, Br⁻)	≤ 100 ppm
Density (at 20°C)	~1.28 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.