1-Butyl-3-methylimidazolium dibutylphosphate, CAS: 663199-28-8

Key Applications:

Catalysis & Organic Synthesis

• Functions as a Brønsted acidic ionic liquid catalyst for esterification, transesterification, acylation, and dehydration reactions.
• Enhances reaction rates in biomass conversion, including cellulose depolymerization and sugar dehydration.
• Serves as a recyclable medium for acid‑catalyzed fine‑chemical transformations, reducing reliance on volatile mineral acids.

Lubrication, Tribology & Surface Engineering

• Acts as a high‑performance lubricant additive with strong surface affinity from the phosphate anion, improving anti‑wear and friction‑reduction behavior.
• Forms stable boundary films on metals, supporting extreme‑pressure lubrication in demanding mechanical systems.
• Useful in tribochemical studies exploring ionic liquid–metal interactions and protective film formation.

Thermal & Process Fluids

• Suitable as a low‑volatility heat‑transfer medium in moderate‑temperature systems.
• Provides enhanced thermal stability for closed‑loop industrial processes requiring non‑flammable ionic liquids.

Extraction, Separation & Solvent Systems

• Effective as a task‑specific solvent for selective extraction of metal ions, organics, and polar compounds.
• Supports liquid–liquid extraction workflows where tunable polarity and low vapor pressure are advantageous.
• Useful in phase‑transfer catalysis and biphasic reaction engineering.

Polymer, Materials & Surface Modification

• Acts as a processing aid for biopolymers and engineering plastics, improving solvation and dispersion of polar components.
• Supports surface functionalization of inorganic and organic substrates through phosphate‑mediated interactions.
• Can be incorporated into ionic‑liquid‑modified composites to enhance conductivity, flexibility, or thermal behavior.

Electrochemical & Analytical Systems

• Serves as a stable electrolyte component in electrochemical cells, especially where acidic ionic liquids are preferred.
• Useful in spectroscopic studies of ion pairing, solvation, and interfacial behavior.

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