1-Ethyl-3-methylimidazolium propionate, CAS: 865627-64-1

Key Applications:

Green Solvent for Biomass & Biopolymers

• Efficient dissolution and processing of cellulose, hemicellulose, lignin, chitin, and starch‑based materials.
• Supports pretreatment and fractionation workflows in biofuel and bioproduct development.
• Enables homogeneous derivatization and regeneration of biopolymers for films, fibers, and composites.

Catalysis & Organic Synthesis

• Serves as a protic, hydrogen‑bonding ionic liquid that enhances rates and selectivity in esterification, transesterification, and condensation reactions.
• Useful as a reaction medium for base‑sensitive substrates, offering mild, tunable acidity.
• Facilitates biocatalytic transformations, including lipase‑mediated reactions, due to its compatibility with many enzymes.

CO₂ Capture & Gas Separation

• Demonstrates strong affinity for CO₂ absorption through carboxylate–CO₂ interactions.
• Suitable for post‑combustion capture, membrane impregnation, and supported ionic liquid phases (SILPs).
• Offers a lower‑toxicity, biodegradable alternative to amine‑based sorbents.

Electrochemical & Energy Applications

• Functions as a hydrophilic ionic liquid electrolyte for aqueous or mixed‑solvent systems.
• Supports proton‑conducting membranes, redox‑flow systems, and low‑voltage electrochemical devices.
• Useful in electrodeposition and electrocatalysis where hydrogen‑bonding ILs improve ion mobility.

Polymer, Surfactant & Formulation Science

• Acts as a plasticizer, dispersant, or compatibilizer in polymer blends and emulsions.
• Enhances dispersion of nanoparticles, pigments, and biomaterials in water‑rich systems.
• Supports formulation of biodegradable coatings, hydrogels, and stimuli‑responsive materials.

Extraction & Separation Processes

• Effective in liquid–liquid extraction of organic acids, phenolics, alkaloids, and metal ions.
• Enables selective separation in biorefinery streams, fermentation broths, and natural product isolation.
• Compatible with aqueous biphasic systems (ABS) for gentle biomolecule handling.

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