Tetra-n-butylammonium bromide (TBAB) is a quaternary ammonium salt compound with applications covering multiple fields:
1. Organic synthesis
TBAB is often used as a phase transfer catalyst to promote the transfer and transformation of reactants in two-phase reaction systems (such as water organic phases), such as in nucleophilic substitution reactions, halogenated hydrocarbon preparation, etherification, and esterification reactions, which can increase yield and shorten reaction time. ‌

2. Electrochemistry
Used in the field of battery manufacturing, as an electrolyte additive, it can enhance electrochemical performance, especially in the research of lithium-ion batteries, demonstrating potential applications. ‌
3. Pharmaceutical manufacturing
Its bactericidal properties make it a key raw material for the preparation of antibacterial drugs, while catalyzing key steps in drug synthesis such as the formation of carbon nitrogen and carbon oxygen bonds.
4.Environmental protection
Applied in water treatment scenarios through the slow-release effect of heavy metal ions, for the removal or recovery of heavy metal pollutants in water bodies. ‌
5.Chemical production
Used in the field of fine chemicals for synthesizing dyes, fragrances, and polymer materials, and participating in alkylation, acylation, and other reactions.