1-Methyl-3-propylimidazolium hexafluorophosphate, CAS: 216300-12-8

Key Applications:

Electrochemical Systems

• Serves as a high‑conductivity ionic medium in electrochemical cells where low viscosity and stable PF₆⁻ coordination are required.
• Used as a supporting electrolyte in cyclic voltammetry, chronoamperometry, and electrodeposition studies due to its wide electrochemical window.
• Enhances ion transport in prototype supercapacitors and redox‑flow testbeds evaluating imidazolium‑based electrolytes.

Catalysis and Synthesis

• Functions as a reaction medium for transition‑metal‑catalyzed couplings, alkylations, and oxidations where non‑coordinating anions are preferred.
• Supports biphasic and phase‑transfer catalysis, enabling improved separation and catalyst recyclability.
• Applied in selective organic transformations requiring thermally stable, low‑volatility solvents.

Separation Science

• Utilized in liquid–liquid extraction systems for metal ions, aromatic hydrocarbons, and polar organics, leveraging its tunable polarity and hydrophobic PF₆⁻ anion.
• Employed in chromatographic method development as an ionic additive to modify retention behavior and improve peak resolution.

Materials and Polymer Processing

• Acts as a structuring agent or plasticizer in polymer electrolytes, ionogels, and composite membranes.
• Supports nanoparticle dispersion and stabilization in colloidal systems, particularly for metal and metal‑oxide nanomaterials.
• Used in templating and self‑assembly studies where ionic liquid microenvironments influence morphology.

Thermal and Green‑Chemistry Applications

• Suitable for high‑temperature reaction environments due to its low vapor pressure and thermal stability.
• Enables solvent‑minimized or solvent‑free processing in sustainable synthesis workflows.

Analytical and Spectroscopic Uses

• Provides a low‑volatility matrix for spectroscopic measurements, including NMR and IR studies of solute–ion interactions.
• Serves as a calibration or reference medium in studies comparing PF₆⁻‑based ionic liquids across alkyl‑chain homologues.

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