1-Butyl-3-methylimidazolium hexafluorophosphate, CAS: 174501-64-5

Key Applications:

Electrochemical Systems

• Electrolytes for batteries and supercapacitors due to wide electrochemical window and thermal stability.
• Electrodeposition medium enabling uniform metal deposition.
• Solvent phase for electrochemical sensors and redox‑active species.

Catalysis and Organic Synthesis

• Reaction medium for transition‑metal catalysis.
• Replacement for volatile organic solvents in alkylation, Diels–Alder, Friedel–Crafts, and oxidation reactions.
• Recyclable catalyst phase in biphasic systems.

Extraction and Separation

• Liquid–liquid extraction of rare‑earth and heavy‑metal ions.
• Solvent for aromatic/aliphatic separations via π‑interaction selectivity.
• Gas absorption applications, including CO₂ capture.

Materials Science and Nanotechnology

• Medium for controlled synthesis of metal, metal‑oxide, and semiconductor nanoparticles.
• Processing aid or plasticizer in polymer and membrane fabrication.
• Electrolyte component in ionogels for flexible electronics.

Thermal and Physical Applications

• High‑temperature heat‑transfer and thermal‑storage fluid.
• Specialty lubricant with low volatility and high thermal stability.

Analytical Chemistry

• Solvent for NMR and UV‑Vis spectroscopy.
• Matrix or medium for mass spectrometry of thermally sensitive analytes.

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