1-Methyl-3-nonylimidazolium bis(trifluoromethylsulfonyl)imide, CAS: 433337-21-4

Key Applications:

1. Electrochemical Systems

• High‑stability electrolyte component for supercapacitors, Li‑metal systems, and high‑voltage electrochemical cells where low volatility and wide electrochemical windows are required.
• Suitable for ionic‑liquid‑based ionogels, enabling flexible and solid‑state device architectures.
• Useful as a conductive additive in polymer electrolytes due to its hydrophobic NTf₂⁻ anion and long‑chain cation.

2. Advanced Lubrication and Tribology

• Hydrophobic, thermally stable lubricant or lubricant additive for vacuum, high‑temperature, and reactive‑gas environments.
• Effective boundary‑layer modifier for metal–metal and metal–ceramic interfaces, reducing friction and wear.
• Compatible with perfluorinated oils and synthetic base stocks for specialty formulations.

3. Extraction, Separation, and Hydrophobic Solvent Systems

• Non‑volatile, hydrophobic extraction medium for metal ions, lanthanides, and transition‑metal complexes.
• Phase‑transfer medium for hydrophobic organics, especially where water‑immiscibility and thermal stability are required.
• Useful in CO₂‑philic extraction systems and ionic‑liquid biphasic catalysis.

4. Catalysis and Reaction Media

• Reaction solvent for Friedel–Crafts, alkylation, isomerization, and transition‑metal‑catalyzed transformations requiring low polarity and high thermal stability.
• Supports immobilized catalysts and supported ionic liquid phases (SILPs), especially in continuous‑flow systems.
• Enhances selectivity in biphasic catalytic cycles due to its hydrophobicity and low miscibility with water.

5. Materials Science and Polymer Processing

• Plasticizer or ionic additive for hydrophobic polymers, elastomers, and ion‑conductive composites.
• Component in surface‑functionalized nanoparticles, improving dispersion in nonpolar matrices.
• Useful in thin‑film fabrication, coatings, and membrane engineering where low vapor pressure and tunable viscosity are advantageous.

6. Thermal and Process Fluids

• High‑stability heat‑transfer medium for closed‑loop systems operating at elevated temperatures.
• Suitable for vacuum‑compatible fluids and low‑volatility process media in specialty manufacturing environments.

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