1-Butylpyridinium bis(trifluoromethylsulfonyl)imide, CAS: 187863-42-9

Key Applications

Electrochemical Systems

• Serves as a high‑stability ionic liquid electrolyte component for lithium, sodium, and multivalent metal batteries.
• Enhances ionic conductivity and electrochemical window in supercapacitors and hybrid capacitive devices.
• Used as a solvent or co‑solvent in electrodeposition of metals and alloys, particularly where moisture‑free, thermally stable media are required.

Catalysis and Synthesis

• Functions as a non‑volatile, thermally robust reaction medium for transition‑metal‑catalyzed transformations.
• Supports biphasic catalysis where phase separation and catalyst recyclability are desired.
• Provides a tunable, low‑nucleophilicity environment for acid‑sensitive or high‑temperature reactions.

Materials Science and Thin‑Film Processing

• Employed in fabrication of polymer electrolytes and ion‑conducting membranes.
• Acts as a plasticizer or ionic dopant in conductive polymers and composite materials.
• Utilized in surface modification and thin‑film deposition processes requiring low vapor pressure and high thermal stability.

Separation Science

• Applied in liquid–liquid extraction systems for selective separation of metal ions, aromatic hydrocarbons, and other hydrophobic analytes.
• Used in supported ionic liquid membranes (SILMs) for gas separation and pervaporation.

Thermal and Tribological Applications

• Serves as a high‑temperature lubricant base fluid due to its low volatility and chemical inertness.
• Provides stable performance in vacuum, aerospace, and high‑load mechanical environments.

Analytical Chemistry

• Used as an ionization medium or additive in mass spectrometry workflows to improve ion transport and reduce fragmentation.
• Supports electroanalytical methods requiring wide electrochemical windows and low background currents.

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