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Tetraethylammonium Bromide

Product Introduction

Tetraethylammonium bromide Basic information

Product Name:	Tetraethylammonium bromide
Synonyms:	TETRAETHYLAMMONIUM BROMIDE;TEAB;TEA BROMIDE;Ammonium, tetraethyl-, bromide;Beparon;Bromethyl;Bromure de tetraethylammonium;tmd10
CAS:	71-91-0
MF:	C8H20BrN
MW:	210.16
EINECS:	200-769-4
Product Categories:	Ammonium Salts;Greener Alternatives: Catalysis;Ammonium Bromides (Quaternary);Quaternary Ammonium Compounds;Phase Transfer Catalysts;Ion-pair Reagents;quarternary ammonium salts;Pharmaceutical intermediates;surfactant;bc0001
Mol File:	71-91-0.mol

Tetraethylammonium bromide Chemical Properties

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	Liquid
color	White to cream
Odor	Odorless
PH Range	6.5 at 100 g/l
PH	6.5 (100g/l, H2O, 20℃)
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

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

MSDS Information

Provider	Language
Tetraethylammonium bromide	English
SigmaAldrich	English
ACROS	English
ALFA	English

Tetraethylammonium bromide Usage And Synthesis

Chemical Properties	white to light yellow crystalline solid
Uses	Tetraethylammonium Bromide, can be used as a source of tetraethylammonium ions for various pharmaceutical studies. It has also the ability to block K+ channels in various tissues.
Uses	Tetraethylammonium bromide (TEAB) catalyzes the synthesis of thioesters by the oxidative coupling of aldehydes or alcohols with thiols or disulfides. It is used as a catalyst, along with o-iodoxybenzoic acid (IBX), in the oxidation of sulfides to sulfoxides and primary carboxamides to one-carbon dehomologated nitriles. TEAB can also be used as an organic template to synthesize zeolite beta.
General Description	The use of ion-pairing reagents as mobile phase additives allows the separation of ionic and highly polar substances on reversed phase HPLC columns. The purity of mobile phase additives is of utmost importance to their successful application. Sigma-Aldrich offers an outstanding range of tailor-made reagents for anionic (quaternary ammonium and phosphonium salts) and cationic (alkanesulfonates) determination. All mobile phase additives are subject to rigorous testing with special emphasis on the requirements of modern reversed phase HPLC:
Purification Methods	Recrystallise the bromide from EtOH, CHCl3 or diethyl ether, or recrystallise it from acetonitrile and dry it over P2O5 under reduced pressure for several days. It also recrystallises from EtOH/diethyl ether (1:2), EtOAc, water or boiling MeOH/acetone (1:3) or by adding an equal volume of acetone and allowing to cool. Dry it at 100o in vacuo for 12 days, and store over P2O5. [Beilstein 4 IV 332.]

Tetraethylammonium bromide Preparation Products And Raw materials

Raw materials	Triethylamine-->Solvent
Preparation Products	Tetraethylammonium tetrafluoroborate-->Tetraethylammonium hexafluorophosphate-->Methyl bromide-->tetraethylammonium hydridotetracarbonylferrate

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