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Tetraethylammonium Bromide

Tetraethylammonium Bromide

Basic Information

CAS No.: 71-91-0
Molecular Formula: C8H20BrN
Molecular Weight: 210.16

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Product Details

Tetraethylammonium Bromide (CAS#71-91-0) appears as colorless to white crystals or crystalline powder. The crystals are prismatic or acicular, while the powder is fine, uniform and glossy. It is stable at room temperature with low hygroscopicity, but may slightly agglomerate when exposed to humid environment for a long time. The color remains predominantly white, and may show a slight pale yellow tint if impurities are present.


Chemical Properties
PropertyValue

Melting point

285 °C (dec.)(lit.)

Density

1,397 g/cm3

Vapor Density

5.3 (vs air)

Refractive Index

1,442-1,444

Storage Temp.

Store below +30°C.

Solubility

acetonitrile: 0.1 g/mL warm, clear, colorless

Form

Crystalline powder

Color

White to cream

Odor

Odorless

PH

6.5 (100g/l, H2O, 20℃)

PH Range

6.5 at 100 g/l

Water Solubility

2795 g/L (25 º C)

Sensitive

Hygroscopic

Merck

14,9199

BRN

3563430

Stability:

Stable. Incompatible with strong oxidizing agents.

InChIKey

HWCKGOZZJDHMNC-UHFFFAOYSA-M

CAS DataBase Reference

71-91-0(CAS DataBase Reference)

NIST Chemistry Reference

Tetraethylammonium bromide(71-91-0)

EPA Substance Registry System

Ethanaminium, N,N,N-triethyl-, bromide (71-91-0)


Safety Information

PropertyValue

Hazard Codes

Xi

Risk Statements

36/37/38

Safety Statements

26-36-37/39

WGK Germany

3

RTECS

BS5950000

F

3

TSCA

Yes

HS Code

29239000


Product Usage

Tetraethylammonium Bromide (TEAB for short), with CAS No. 71-91-0 and chemical formula C₈H₂₀BrN, appears as white crystalline powder, hygroscopic and easily soluble in polar solvents such as water and ethanol, with stable chemical properties. Its core application is in the field of organic synthesis. As an efficient phase transfer catalyst, it can break the interface barrier between aqueous and organic phases, accelerate nucleophilic substitution, redox and other reactions, and improve reaction efficiency and product purity. It can also be used as an ion-pair reagent to assist chromatographic separation and analytical detection, and as a precursor for ionic liquids and a stabilizer for nanomaterial preparation, widely used in fine chemicals, analytical chemistry, material science and other fields, being an indispensable functional chemical raw material.

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