1-Butyl-3-methylimidazolium methyl sulfate, CAS: 401788-98-5

Key Applications:

Solvent & Reaction Medium

• Efficient, non‑volatile solvent for organic synthesis, including alkylation, esterification, and nucleophilic substitution reactions.
• Enhances reaction rates and selectivity in transition‑metal‑catalyzed transformations such as hydrogenation and cross‑coupling.
• Supports biocatalysis by stabilizing enzymes in non‑aqueous media.

Electrochemical & Energy Applications

• Used as an ionic, thermally stable medium in electrochemical cells, supercapacitors, and battery research.
• Improves ionic conductivity in proton‑exchange systems and redox‑active electrolytes.

Extraction & Separation Processes

• Effective in liquid–liquid extraction of metal ions, dyes, and bioactive compounds due to strong polarity and tunable solvation behavior.
• Applied in CO₂ capture, biomass fractionation, and separation of lignocellulosic components.

Biomass & Polymer Processing

• Dissolves or swells cellulose, hemicellulose, and other biopolymers, enabling derivatization and material modification.
• Used in polymerization reactions as a green solvent with low vapor pressure.

Catalysis & Green Chemistry

• Functions as a recyclable ionic catalyst or co‑catalyst in acid‑catalyzed transformations.
• Supports solvent‑free and low‑waste reaction pathways aligned with green chemistry principles.

Materials Science

• Employed in the preparation of nanoparticles, ionic gels, and functional coatings.
• Enhances dispersion stability for nanomaterials and conductive composites.

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