Tetraethylammonium bromide (TEAB) CAS No 71-91-0

Tetraethylammonium Bromide (TEAB)

Chemical Name: Tetraethylammonium bromide

Chemical Synonyms: TEAB; Tetraethylazanium bromide; N,N,N-Triethylethanaminium bromide

CAS No.: 71-91-0

Molecular Formula: C₈H₂₀BrN

Molecular Weight: 210.16 g/mol

Product Properties: White crystalline powder; hygroscopic; freely soluble in water (2,795 g/L at 25 °C), ethanol, chloroform, and acetone; slightly soluble in benzene; 10% aqueous solution pH ≈ 6.5.

Storage: Keep container tightly closed in a cool, dry, and well-ventilated place. Protect from moisture and direct light.

Packing: Industrial grade: 25 kg fiber drums or moisture-proof kraft bags; reagent grade: 25 g / 100 g / 500 g bottles. Custom packaging and full documentation (COA/MSDS) available upon request.

Application: Phase-transfer catalyst (PTC) for halogen exchange, N-alkylation, carbene reactions, and other liquid–liquid/liquid–solid heterogeneous syntheses; curing accelerator for powder coatings and epoxy resins; molecular sieve template; electrolyte in electrochemical studies; polarographic analytical reagent.

Product Specification: Industrial grade ≥ 98.0%; reagent grade ≥ 99.0%; high-purity grade ≥ 99.5% (customizable). Moisture and loss on drying controlled per batch. Third-party analytical data (titration, HPLC) provided with each lot.