1-Butyl-2-methylpyridinium chloride, CAS: 112400-85-8

Key Applications:

• Hydrogen‑Bonding & Solvation Studies
  • 1‑Butyl‑2‑methylpyridinium chloride is widely used as a model pyridinium ionic liquid for probing hydrogen‑bonding interactions, solvation thermodynamics, and water–ionic liquid activity relationships. Its well‑characterized behavior makes it suitable for validating COSMO‑RS and related computational models.
• Electrochemical Systems
  • Pyridinium ionic liquids with medium‑length alkyl chains serve as supporting electrolytes and ion‑transport media in electrochemical studies. This IL’s aromatic cation and chloride anion enable investigations of conductivity, viscosity, and interfacial charge‑transfer behavior.
• Ionic Liquid Formulation & Mixture Design
  • This compound is used as a benchmark IL in binary and ternary mixture studies aimed at tuning melting point, polarity, hydrophilicity, and hydrogen‑bonding capacity. It supports structure–property comparisons across pyridinium, pyrrolidinium, and piperidinium families.
• Polymer & Materials Interaction Studies
  • The IL’s aromatic cation enables controlled studies of polymer swelling, dissolution, and ion–polymer interactions. It is used to evaluate IL‑induced changes in polymer mechanical properties and to probe π‑cation and hydrogen‑bonding interactions in materials systems.

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