1-Butyl-3-methylpyridinium tetrafluoroborate, CAS: 597581-48-1

Key Applications:

Electrochemical Systems

• High‑stability ionic liquid electrolyte with a wide liquid‑phase window and low volatility.
• Suitable for capacitors, dye‑sensitized solar cells, redox systems, and non‑aqueous electrochemical studies.
• Enables controlled electrodeposition processes where moisture‑free, low‑vapor‑pressure media are required.

Solvent and Co‑Solvent in Organic Synthesis

• Functions as a non‑volatile, tunable solvent for catalytic transformations and separation processes.
• Exhibits well‑characterized behavior in binary mixtures (e.g., with ethanol), supporting process modeling and thermodynamic design.
• Provides selective dissolution of polar and moderately non‑polar substrates.

Materials Science and Thin‑Film Processing

• Applied in ionic‑liquid templating, polymer doping, and nanomaterial dispersion.
• Supports thin‑film fabrication for optoelectronic materials due to controlled viscosity and thermal stability.

Thermophysical Property Benchmarking

• Extensively characterized in NIST Web Thermo Tables, making it a reference ionic liquid for density, viscosity, heat‑capacity, and enthalpy studies.
• Used in computational chemistry validation, including COSMO‑RS, molecular dynamics, and equation‑of‑state development.

Extraction and Separation Processes

• Serves as a task‑specific extraction medium for metal ions, aromatic compounds, and biomass‑derived molecules.
• BF₄⁻‑based ionic liquids demonstrate favorable partitioning behavior for selective separations.

Antistatic and Charge‑Control Additives

• Incorporated into coatings, lubricants, and polymer matrices to enhance ionic conductivity and reduce static buildup.
• Suitable for precision manufacturing environments requiring thermally stable, low‑volatility additives.

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