1-(2-Hydroxyethyl)-3-methylimidazolium tetrafluoroborate, >98%

1- (2-Hydroxyethyl)-3-methylimidazolium Tetrafluoroborate (374564-83-7)

1-(2-Hydroxyethyl)-3-methylimidazolium tetrafluoroborate (CAS Number: 374564-83-7) is an ionic liquid with the molecular formula C6H11BF4N2O and the molecular weight 213.9712. It is also known as 1- (2-Hydroxyethyl)-3-methyl-1H-imidazol-3-ium tetrafluoroborate1 or [C2OHmim]BF43. It has a light yellow to orange clear liquid appearance and a specific gravity of 1.372. It is hygroscopic and corrosive and should be stored under inert gas.

This ionic liquid can be synthesized by reacting 1-(2-hydroxyethyl)imidazole with methyl iodide and sodium tetrafluoroborate in acetone at room temperature. The reaction yields [C2OHmim]BF4, which can be purified by recrystallization from cold ethanol. Alternatively, it can be prepared by metathesis of [C2OHmim]I with sodium tetrafluoroborate in water.

[C2OHmim]BF4 has been used as a solvent for various applications, such as extraction, catalysis, electrochemistry, and polymerization. It has low viscosity, high thermal stability, and good solubility for organic and inorganic compounds. It also exhibits liquid−liquid phase separation with water and alcohol at certain compositions and temperatures.

Key Applications

1- (2-Hydroxyethyl)-3-methylimidazolium Tetrafluoroborate has been used as a solvent for extraction, catalysis, electrochemistry, and polymerization. It has low viscosity, high thermal stability, and good solubility for organic and inorganic compounds.

As an absorbent for ammonia in the absorption refrigeration industry or to reduce environmental pollution in the chemical industry. It can form ionic pairs with ammonia and has a high solubility for ammonia.

It is also used as a working fluid for absorption systems.

This ionic liquid is a great medium for solubility and diffusion studies of polar gases such as hydrogen sulfide and carbon dioxide. It can capture these gases and reduce greenhouse gas emissions.

As a gel electrolyte for lithium-ion batteries with high ionic conductivity and thermal stability. It can form a stable interface with the electrodes and improve battery performance.

It has also been reported in synthesizing nanomaterials such as silver nanoparticles, carbon nanotubes, and graphene oxide. It can act as a reducing agent, a stabilizing agent, or a dispersing agent for the nanomaterials.

Please contact us if you want to learn more or need assistance with your order.