1-Benzyl-3-Methylimidazolium Hexafluorophosphate belongs to the family of ionic liquids known for stability and unique physical forms. Its structure includes a benzyl group bonded to a methyl-imidazolium cation, partnered with a hexafluorophosphate anion. In practice, it appears as crystalline flakes, solid powder, pearls, and under some circumstances, as a dense liquid, making it suitable for a wide range of chemical applications. The HS Code for this compound typically aligns with industrial organic chemicals, easing customs identification during transport or trade. Its molecular formula, C11H13F6N2P, shapes the properties, with a molar mass around 316.20 g/mol. In laboratory settings, this ionic liquid has a density close to 1.25 g/cm³, a value that supports its role as a dissolver and blending agent. Powdered specimens often flow freely, while crystalline types show a pearl-like luster under laboratory lighting.
Looking at the chemical structure, the cation—1-benzyl-3-methylimidazolium—offers stability and a moderate hydrophobic profile due to the benzyl group. The hexafluorophosphate anion introduces robustness against hydrolysis, a property that stands out in chemical synthesis and extraction work. The resulting material, an ionic liquid at room temperature, brings a set of unique behaviors: low volatility, high thermal stability, and a broad liquidus range. Its melting point usually sits between 50 to 60°C, above which the compound transitions to a viscous liquid. Handling and storage feel straightforward for seasoned chemists but demand respect and technical know-how, as with most halogenated phosphates. Solutions of this salt in water or acetonitrile reveal clear, almost glassy transparency, which signals high purity and refinement during synthesis.
Safety doesn’t come as an afterthought. 1-Benzyl-3-Methylimidazolium Hexafluorophosphate carries its share of chemical hazards. While it doesn’t combust or decompose easily, the release of hydrogen fluoride and phosphorus pentafluoride during thermal degradation calls for strict temperature monitoring and laboratory-grade ventilation. Prolonged exposure to skin or eyes may create irritation; inhaling particulate dust also triggers respiratory discomfort. The harmful profile requires gloves, goggles, and, ideally, a fume hood. Cleanup after spills includes swift action with inert absorbents, then disposal according to hazardous waste procedures established by local authorities. Those working with the compound absolutely need a material safety data sheet at hand and should never underestimate the subtle, chronic effects of low-level chemical exposure.
The value of 1-Benzyl-3-Methylimidazolium Hexafluorophosphate reaches into areas like catalysis, electrochemistry, and organic synthesis. Chemists substitute this ionic liquid for more volatile organic solvents due to its low vapor pressure, which limits environmental emissions and boosts operational safety. In battery research, it acts as a supporting electrolyte, helping researchers explore new ranges of electrical conductivity and ionic mobility. The purity of raw materials directly sways the outcome, since contaminants can alter physical and electrochemical properties. Supply chains prioritize quality assurance during production, often involving multiple purification steps and advanced analytical verification. Flakes and powders serve as quick-mixing forms for bench-top reactions, while bulk applications lean toward pearls or compressed solid bricks for easier storage and shipping.
Specification sheets for this compound detail melting point, density, water content (usually below 0.2%), and color (clear white or faintly yellow if impurities creep in). Analytical-grade versions meet higher thresholds for purity and consistency. Documentation traces each batch, confirming alignment with government and international safety standards. On import and export paperwork, the HS Code (commonly 2921.49 for organic ionic liquids) streamlines clearance, though users always double-check for updates. Whether buying kilograms or laboratory reagent vials, reliable sourcing stands as a pillar for research integrity and safety across academic and industrial environments.
