1-Butyl-3-methylimidazolium tosylate, CAS: 410522-18-8

Key Applications:

• Solvent and Reaction Medium in Organic Synthesis
  • BMIM OTs is widely used as a polar, thermally stable ionic liquid solvent that enhances reaction rates, improves selectivity, and enables greener processing. 

• Ionic Liquid Catalyst and Co‑Catalyst
  • The tosylate anion provides mild Brønsted acidity, enabling BMIM OTs to function as a recyclable catalytic medium. 

• Materials Science and Polymer Processing
  • BMIM OTs is used in materials development, particularly where ionic conductivity, thermal stability, and tunable viscosity are required. Applications include:

• • • Polymer electrolytes
    • Processing aids for conductive composites
    • Additives for improving mechanical and thermal properties 
• Electrochemical Systems and Binary Ionic Liquid Blends
  • BMIM OTs participates in binary ionic liquid systems to tune:

• • • Viscosity
    • Conductivity
    • Thermal stability 
  • These blends are used in electrochemical research, energy storage materials, and ionic transport studies. 
• Extraction, Separation, and Phase‑Transfer Systems
  • Due to its strong solvating power and aromatic sulfonate anion, BMIM OTs is used in:

• • • Liquid–liquid extraction
    • Separation of aromatic compounds
    • Phase‑transfer catalysis for hydrophobic substrates 
• Thermal Stability and Thermophysical Property Studies
  • BMIM OTs is frequently used as a model ionic liquid in studies of:

• • • Thermal decomposition pathways
    • Heat capacity and enthalpy measurements
    • Structure–property relationships in imidazolium ILs 

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