Tetra Ethyl Ammonium Bromide, Form ; Powder

Tetraethylammonium bromide (TEAB or (C2H5)4NBr) is a quaternary ammonium salt characterized by four ethyl groups bonded to a central nitrogen atom, with a bromide ion as its counterion. It appears as a white crystalline solid that is soluble in polar solvents such as water and ethanol. TEAB is primarily employed as a phase-transfer catalyst in organic synthesis, facilitating the transfer of reactants between aqueous and organic phases, thereby enhancing reaction efficiency. Its structure and solubility properties make it effective in various reactions, including nucleophilic substitutions and quaternization processes. TEAB is also utilized in electrochemistry as an electrolyte component and in polymer chemistry to modify surface properties. While generally regarded as safe when handled correctly, precautions should be taken due to its status as a chemical reagent, requiring proper storage and handling procedures to mitigate potential health and safety risks.