Tetraethylammonium bromide 71-91-0

Product Name: Tetraethylammonium Bromide
English Alias: TEA Bromide; Et₄NBr
CAS Number: 71-91-0
Molecular Formula: C₈H₂₀BrN
Molecular Weight: 210.16 g/mol
Appearance: White crystalline powder
Package: 1 kg/bag, 5 kg/bag (double sealed aluminum bags with desiccant)

What is Tetraethylammonium Bromide？

Tetraethylammonium Bromide is a quaternary ammonium salt appearing as a white crystalline powder. It is highly soluble in water and polar organic solvents. The compound is widely used as a phase transfer catalyst and electrolyte in organic synthesis and electrochemical applications due to its good solubility and stability. It is hygroscopic and should be handled under dry conditions.

COA (Certificate of Analysis):

Test Item	Specification	Result
Appearance	White crystalline powder	Complies
Purity (HPLC)	≥ 99.0%	99.3%
Melting Point	285-290°C (dec.)	287°C
Water Content	≤ 0.5%	0.2%
Bromide Content	37.5-38.5%	38.0%
Heavy Metals (as Pb)	≤ 10 ppm	< 5 ppm

Application:

1. Phase Transfer Catalyst:

Facilitates reactions between immiscible phases in organic synthesis

2. Electrochemical Research:

Supporting electrolyte in electrochemical experiments

3. Ion Pair Reagent:

Mobile phase additive in chromatography

4. Chemical Synthesis:

Catalyst in polymerization and other organic reactions

5. Analytical Chemistry:

Standard and reagent in various analytical methods

6. Surfactant Research:

Model compound for surfactant studies

7. Zeolite Synthesis:

Used as an organic template in the hydrothermal crystallization

Safety Profile:

Tetraethylammonium Bromide is harmful if swallowed. Causes skin and eye irritation. Inhalation of dust may cause respiratory irritation. Use appropriate personal protective equipment including gloves, safety glasses, and dust mask when handling. Avoid breathing dust and ensure adequate ventilation. The substance is toxic to aquatic life. For detailed safety information, always consult the full Safety Data Sheet (SDS).

Storage Requirements:

Store in a cool, dry, well-ventilated area under inert atmosphere. Keep containers tightly sealed and protected from moisture. Maintain storage temperature between 15-25°C. Relative humidity below 40% recommended. Handle under dry inert gas when opening containers.

Transport & Packaging:

Tetraethylammonium Bromide is packaged in double-sealed aluminum bags with desiccant (1 kg or 5 kg net weight per bag), placed in sturdy outer containers. Transport as hygroscopic material. Ensure containers are properly sealed and protected from moisture during transportation. Store away from incompatible materials.