Tetraethylammonium Acetate stands out in the world of chemicals with a strong presence in research labs and many specialty production processes. This compound flows as a white crystalline or powdery solid, rarely forming pearls or flakes but sometimes seen in granular crystal form. It carries the molecular formula C10H23NO2, and each grain in the jar represents two key components: the tetraethylammonium cation and the acetate anion. Most bottles of this chemical list a purity that runs above 98%, and it's often stored inside tightly sealed containers to keep out moisture and clumping. The chemical’s unique structure supports wide usage as a phase-transfer catalyst, a role it fills thanks to its stable, quaternary ammonium backbone.
Hefting a jar of Tetraethylammonium Acetate, you can see its solid state at room temperature and a density that weighs in at around 1.1 to 1.2 grams per cubic centimeter. This material melts at roughly 270°C, so in most siding labs or chemical plants, it remains a solid under normal handling conditions. It blends readily in water and polar solvents, a quality often needed when scientists want precise solution concentrations—whether in biotechnology, analytical chemistry, or pharmaceutical projects. It carries a faint chemical odor, noticeable only with direct handling, which tells you right away that it’s not inert but able to react with acids, bases, or other ionic chemicals. As someone who’s measured out batches for synthesis, this familiarity is a reminder to handle volumes in milliliters and grams with the same care you would with any potent chemical agent.
Peering at the molecule, you see four ethyl groups attached to a central nitrogen, which forms the positively charged tetraethylammonium ion. The accompanying acetate ion adds a small, carboxylate end—giving it just enough polarity to help split or deliver ions in solution. Structurally, this means Tetraethylammonium Acetate helps shuttle ions during chemical reactions, which is one reason it finds a spot in nerve transmission studies, organic synthesis, and even biotechnology. The CAS number for this chemical helps with supply chain traceability, listing, and regulatory control, anchoring it in databases for scientists or manufacturers who track inventory and compliance requirements.
Supply chain managers and customs agents usually look for a Harmonized System (HS) Code, which sits between 2923.90 for quaternary ammonium compounds—placing Tetraethylammonium Acetate in the non-proteinogenic, specialty chemical category. Specification sheets highlight more than purity—they include solubility in water, appearance, melting point, and sometimes even the bulk density, which impacts how you store or transport the raw material. I’ve read through these sheets, and while they may seem dry, the details govern safe storage, correct handling, and smart purchasing choices for labs running on tight budgets and timelines.
Depending on the supplier, Tetraethylammonium Acetate comes as either small crystals, a fine free-flowing powder, or a chunkier solid broken into manageable pieces. Rarely, liquid forms show up, usually as pre-dissolved stock solutions in tightly sealed liter bottles. Density matters when weighing out batches; for high-precision work, using a calibrated balance makes the difference between successful syntheses and frustration. Every batch carries a certificate of analysis as proof of composition, a point which gives reassurance to quality control teams and assures consistency across different lots.
Like most strong ionic chemicals, Tetraethylammonium Acetate does not slip by without safety concerns. While it’s not volatile or explosive, it creates health risks if mishandled. Skin and eye irritation can flare up on direct contact, and accidental ingestion or inhalation leads to more serious outcomes—quick review of the safety data sheet makes that clear. On the floor of every lab I’ve worked in, gloves and safety glasses become second nature, and chemical-resistant lab coats get worn for every open handling session. Waste disposal protocols keep bulk residues and unused materials from crossing into wastewater; instead, they head to approved chemical collection streams for proper neutralization and safe disposal as hazardous waste.
Within chemistry, Tetraethylammonium Acetate acts more than a simple commodity; it fills the raw material needs in chemical manufacturing, analytical separations, and organic syntheses. In academic and industrial labs, it serves as a counterion, an ionic strength-adjuster, or even a stabilizer in enzyme reaction buffers. Students and seasoned chemists pick this compound for projects that demand tight ion pairing, helping reactions run with fewer unexpected side products. Whether in powder or pre-mixed solution, its presence can make the difference between scattered results and a smooth, reliable outcome. Years spent in the lab drive the point home: the right raw material, properly characterized and handled, pays off in safer experiments and trustworthy results.
