1-Butylpyridinium chloride, CAS: 1124-64-7

Key Applications:

Catalysis & Organic Synthesis

• Employed as a polar, non‑volatile reaction medium for acid‑catalyzed and transition‑metal‑catalyzed transformations.
• Enhances selectivity and yields in alkylation, esterification, and nucleophilic substitution reactions.
• Used as a recyclable ionic liquid catalyst phase in biphasic and solvent‑free systems.

Electrochemistry & Energy Storage

• Serves as a supporting electrolyte or ionic additive in electrochemical cells requiring wide electrochemical windows.
• Investigated for electrodeposition processes, redox‑active electrolyte formulations, and ionic‑liquid‑modified electrodes.
• Useful in conductivity and ion‑transport studies for next‑generation battery and supercapacitor materials.

Solvent Extraction & Separation Science

• Functions as an extractant or phase‑transfer medium for metal ions, organic pollutants, and hydrophobic solutes.
• Applied in liquid–liquid extraction systems to improve partitioning efficiency and reduce volatility.
• Supports separations research involving ionic‑liquid‑based aqueous biphasic systems (IL‑ABS).

Materials Science & Polymer Processing

• Used as a structure‑directing agent and templating medium in the synthesis of porous materials and nanostructured composites.
• Enhances dispersion and processing of polymers, nanoparticles, and conductive fillers.
• Investigated in the preparation of ion‑conductive membranes and polymer electrolytes.

Spectroscopy, Solvation & Fundamental Studies

• Serves as a model pyridinium ionic liquid for studying ion pairing, hydrogen bonding, and microheterogeneity.
• Used in NMR, IR, Raman, and dielectric spectroscopy to probe solvation dynamics and ionic mobility.
• Supports computational and experimental benchmarking of pyridinium‑based ionic liquid families.

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