1-Butyl-2-methylpyridinium tetrafluoroborate, CAS: 286453-46-1

Key applications:

Electrochemical Systems

• Serves as a high‑conductivity electrolyte component for supercapacitors, redox‑flow systems, and advanced battery research.
• Supports stable ion transport under wide potential windows due to the BF₄⁻ anion’s electrochemical robustness.
• Useful as a co‑solvent or ionic additive to tune viscosity, conductivity, and interfacial behavior in electrode–electrolyte systems.

Catalysis and Synthesis

• Functions as a non‑volatile reaction medium for transition‑metal catalysis, enabling improved selectivity and recyclability.
• Provides a polar, tunable environment for nucleophilic substitutions, cyclizations, and heterocycle functionalization.
• Suitable for biphasic catalysis where phase separation and catalyst recovery are required.

Separation Science

• Acts as an extraction medium for metal ions, organics, and polar analytes, leveraging its cation–anion pairing to modulate solvation.
• Supports ionic‑liquid‑based liquid–liquid extraction systems where low vapor pressure and thermal stability are advantageous.
• Can be incorporated into supported ionic‑liquid membranes for selective transport of charged or polar species.

Materials and Surface Engineering

• Serves as a structuring agent or templating medium in the preparation of nanomaterials, conductive films, and porous frameworks.
• Useful in electrodeposition environments where ionic liquids improve morphology control and suppress side reactions.
• Provides a stable medium for polymerization processes requiring controlled ionic strength and low volatility.

Analytical and Spectroscopic Use

• Functions as a solvent for spectroscopic studies where minimal background volatility and broad thermal stability are required.
• Supports electroanalytical experiments by stabilizing reactive intermediates and enabling wide potential sweeps.

General Research Applications

• Suitable for fundamental studies of ion transport, solvation dynamics, and ionic‑liquid structure–property relationships.
• Provides a benchmark pyridinium‑based IL for comparative studies across BF₄⁻ systems.

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