Tributylmethylammonium Tetrafluoroborate stands as a quaternary ammonium salt, designed for use in specialized chemical processes. The chemical combines an organic cation, tributylmethylammonium, with an inorganic tetrafluoroborate anion. This combination brings together the liquid-like qualities of certain organic salts with the stability and ionic conductivity favored in electrochemistry and advanced synthesis. Based on hands-on experience with ionic liquids and salt-based electrolytes, it offers remarkable flexibility in laboratory and industrial environments. The integration of a methyl group gathered alongside three butyl groups around the central nitrogen atom offers notable solubility characteristics, mixing compatibility in polar and some nonpolar environments, as well as lowering the melting point relative to simpler tetraalkylammonium salts.
Molecular formula for Tributylmethylammonium Tetrafluoroborate is C13H32BF4N. This salt contains a positively charged nitrogen atom bearing three butyl groups and one methyl group. The counterion is tetrafluoroborate (BF4−), recognized for its stability and weakly coordinating nature, which opens up many applications where a non-interfering anion is critical. Analysis of the crystal lattice reveals organized ionic packing, which illustrates the ability of this compound to support both ionic conductivity and thermal stability in mixtures. The combination of large organic cation and compact inorganic anion impacts the melting point, viscosity, and solvating behavior, distinguishing this material from traditional inorganic salts.
Physical form of Tributylmethylammonium Tetrafluoroborate ranges from powder to crystalline solid, depending on preparation and storage conditions. Some variants arrive in pearlescent flakes or chunky powders, while high-purity samples can appear as clear or slightly cloudy crystals with a soft luster. Density falls close to 1.05 g/mL at room temperature, supporting safe handling with standard laboratory practices. Melting point typically settles near 90–100 °C, creating convenience for activities that demand low-melting ionic salts. Small-scale applications employ solid material, supplied in bottles or vials, but bulk applications sometimes dissolve the salt in water, methanol, or acetonitrile, yielding clear, homogeneous solutions. Experience with different suppliers shows that packaging varies: robust, moisture-tight containers prevent contamination and caking, and flakes preserve flowability for precise weighing.
Tributylmethylammonium Tetrafluoroborate shows exceptional thermal stability, withstanding moderate heating without decomposing—a quality that benefits electrochemical and organic synthesis applications. Its low hygroscopicity, especially compared to similar alkylammonium salts, cuts down on handling issues in humid climates. This compound dissolves well in polar solvents and supports ion mobility, making it a well-known supporting electrolyte in nonaqueous electrochemistry. Developers in battery research appreciate its non-coordinating anion; its use does not interfere with metal-ligand complexes or redox reactions. Analytical chemists employ the salt as an ion-pairing agent for chromatography, while process chemists value its predictable behavior under acidic, neutral, and mildly basic conditions. For anyone scaling up experiments, the consistent purity levels provided by reputable producers stop the appearance of side products or unwanted residues.
Key specifications define purity, moisture content, melting range, appearance, and solubility profile. High-grade material sets purity above 98%, with water content below 0.3%. Reliable sources ship certificates of analysis, attesting to batch compliance and clear lot identification. For international trade, the Harmonized System Code (HS Code) is 2923.90, underlines its identity as a quaternary ammonium salt. Shipping and storage guidelines label this compound as chemically stable under most conditions, yet general care dictates storing away from strong acids, bases, and oxidizers.
Safe use runs on gloves, goggles, and lab coats—standard protective gear. Direct contact with skin or eyes causes mild irritation. Inhalation of dust or extended handling can lead to respiratory discomfort. No mutagenic or carcinogenic behavior is reported for typical lab exposure, but ingestion or large-scale inhalation brings the same risks associated with handling most quaternary ammonium compounds. Disposal through approved chemical waste channels prevents environmental release, since tetrafluoroborate ions, while less hazardous than some halides or metal ions, still contribute to waterway contamination if handled carelessly. Laboratories and plants benefit from good local exhaust ventilation, sealed storage, and proper labeling. Training new personnel in the routine protocols and spill response builds a foundation of responsible practice and keeps accident rates low.
