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426296

Tetramethylammonium bromide

Name: Tetramethylammonium bromide
Brand: SIAL

ACS reagent grade, ≥98.0%, powder

Synonym(s):

N,N,N-trimethyl-methanaminium bromide, TMAB

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About This Item

Linear Formula:

(CH₃)₄N(Br)

CAS Number:

64-20-0

Molecular Weight:

154.05

NACRES:

NA.21

PubChem Substance ID:

24866694

UNSPSC Code:

12352100

EC Number:

200-581-2

MDL number:

MFCD00011626

Beilstein/REAXYS Number:

3620955

Assay:

≥98.0%

Grade:

ACS reagent

Form:

powder

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Product Name

Tetramethylammonium bromide, ACS reagent, ≥98.0%

grade

ACS reagent

Quality Level

200

assay

≥98.0%

form

powder

reaction suitability

core: ammonium

impurities

≤0.5% trimethylamine hydrobromide, ≤0.5% trimethylamine

mp

>300 °C (lit.)

functional group

amine

SMILES string

[Br-].C[N+](C)(C)C

InChI

1S/C4H12N.BrH/c1-5(2,3)4;/h1-4H3;1H/q+1;/p-1

InChI key

DDFYFBUWEBINLX-UHFFFAOYSA-M

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Related Categories

Phase-Transfer Catalysts

Catalysts

Organocatalysts

General description

Tetrabutylammonium bromide is a quaternary ammonium compound that is widely used as a phase transfer catalyst. Absolute viscosities of its aqueous solutions have been measured at various temperatures (20,25 and 30°C). Various physical properties (activity coefficient up to saturation, conductance, density and solubility in water) of TMABr have been evaluated.

Application

Tetrabutylammonium bromide (TBAB) may be used in the molten state in the following processes:

Synthesis of (2S)-5-(3-phenyl-2-phthalimidylpropanoylamino)isophthalic acid.
Synthesis of alkyl-substituted pyrroles in the absence of catalyst and organic solvent.
Synthesis of dithioacetals from acetals by transthioacetalisation in a solvent free environment.
Synthesis of polyamides (PAs) by the polymerization of terephthalic acid and diisocyanates.
Catalyze the addition of thiols to conjugated alkenes.
Dehydrochlorination of poly(vinyl chloride).

pictograms

GHS06

signalword

Danger

hcodes

H300

pcodes

P301 + P330 + P331 + P310

Hazard Classifications

Acute Tox. 2 Oral

Storage Class

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges

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Viscosity of aqueous solutions. III. Tetramethylammonium bromide and the role of the tetraalkylammonium ions.

Nightingale Jr ER.

The Journal of Physical Chemistry, 66(5), 894-897 (1962)

Heat capacities and thermodynamic properties of two tetramethylammonium halides.

Chang SS and Westrum Jr EF.

J. Chem. Phys. , 36(9), 2420-2423 (1962)

Dehydrochlorination of poly (vinyl chloride) by aqueous sodium hydroxide solution under two-phase conditions.

Kise H.

Journal of Polymer Science Part A: Polymer Chemistry, 20(11), 3189-3197 (1982)

Some physical properties of aqueous solutions of tetramethylammonium bromide and tetramethylammonium iodide

Levien BJ.

Australian Journal of Chemistry, 18(8), 1161-1170 (1965)

Novel biobased polyurethanes synthesized from nontoxic phenolic diol containing l-tyrosine moiety under green media.

Mallakpour S, et al.

Journal of Polymers and the Environment, 18(4), 685-695 (2010)

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Global Trade Item Number

SKU	GTIN
426296-100G	04061832104195
426296-25G	04061832104201

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