1-Butyl-2,3-dimethylimidazolium tetrafluoroborate, CAS: 402846-78-0

Key Applications:

Electrochemical Systems

• Serves as a stable, low‑volatility ionic medium for electrochemical studies requiring wide electrochemical windows.
• Supports high ionic conductivity in prototype electrolytes for capacitors, redox systems, and electrodeposition research.
• Useful in evaluating ion‑transport behavior in mixed‑solvent or solvent‑free electrolyte formulations.

Catalysis and Synthesis

• Functions as a non‑volatile reaction medium for acid‑sensitive or moisture‑sensitive transformations where BF₄⁻ stability is advantageous.
• Enables selective catalytic processes involving transition‑metal complexes, particularly where imidazolium cations enhance solubility or ligand behavior.
• Applied in biphasic and recyclable catalytic systems due to its thermal stability and low vapor pressure.

Separation Science

• Employed as a tunable solvent for liquid–liquid extraction of metal ions, organic compounds, and hydrophobic analytes.
• Supports chromatographic method development as an additive or stationary‑phase modifier to adjust polarity and retention behavior.

Materials and Polymer Science

• Acts as a structuring agent or ionic plasticizer in polymer matrices, improving conductivity and mechanical flexibility.
• Used in preparing ionogels and hybrid materials where BF₄⁻ contributes to stable, low‑moisture ionic environments.
• Facilitates dispersion and stabilization of nanoparticles in ionic‑liquid‑based media.

Thermal and Solvation Applications

• Suitable for high‑temperature reaction environments due to its thermal robustness and low flammability.
• Provides a controlled solvation environment for studying solute–ion interactions, viscosity effects, and ionic‑liquid microstructures.

Analytical and Spectroscopic Use

• Serves as a reference ionic medium for NMR, IR, and Raman studies examining cation–anion interactions and solvation dynamics.
• Useful in calibrating or benchmarking physicochemical property measurements such as conductivity, density, and viscosity.

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