Tetramethylammonium bromide

Tetramethylammonium bromide Basic information

Product Name:	Tetramethylammonium bromide
Synonyms:	Tetramethylaminium·bromide;Tetramethylammonium bromide(TMAB);Four broMide;TetraMethylaMMoniuM broMide, 98% 100GR;Four MethylbroMide;Tetramethylammonium bromide ACS reagent, >=98.0%;Tetramethylammonium bromide Vetec(TM) reagent grade, 98%;TETRAMETHYLAMMONIUM BROMIDE
CAS:	64-20-0
MF:	C4H12BrN
MW:	154.05
EINECS:	200-581-2
Product Categories:	Ammonium Bromides (Quaternary);Quaternary Ammonium Compounds;quarternary ammonium salts;Ammonium Salts;Greener Alternatives: Catalysis;Phase Transfer Catalysts;AnionicHPLC;Chromatography/CE Reagents;Ion Pair;Ion Pair Reagents;Ion Pair Reagents - Anionic;Ammonium SaltsAnalytical Reagents;Electrochemistry;Supporting Electrolytes for Electrochemistry;bc0001
Mol File:	64-20-0.mol

Tetramethylammonium bromide Chemical Properties

Melting point	>300 °C (lit.)
Boiling point	>360°C
density	1,56 g/cm³
refractive index	1.4379 (estimate)
storage temp.	Store below +30°C.
solubility	H₂O: 0.1 g/mL, clear, colorless
form	Crystalline Powder
color	Slightly gray
PH	5.5-6.5 (100g/l, H2O)
Odor	Odorless
Water Solubility	soluble
Sensitive	Hygroscopic
λmax	λ: 240 nm Amax: 0.06 λ: 250 nm Amax: 0.03 λ: 260 nm Amax: 0.02 λ: 500 nm Amax: 0.02
BRN	3620955
CAS DataBase Reference	64-20-0(CAS DataBase Reference)
NIST Chemistry Reference	Tetramethylammonium bromide(64-20-0)
EPA Substance Registry System	Methanaminium, N,N,N-trimethyl-, bromide (64-20-0)

Safety Information

Hazard Codes	T
Risk Statements	25-36/37/38
Safety Statements	26-28-36-45-37/39-28A
RIDADR	UN 2811 6.1/PG 2
WGK Germany	3
RTECS	BS7600000
TSCA	Yes
HazardClass	6.1
PackingGroup	II
HS Code	29239000

MSDS Information

Provider	Language
Tetramethylammonium bromide	English
SigmaAldrich	English
ACROS	English

Tetramethylammonium bromide Usage And Synthesis

Chemical Properties	SLIGHTLY GREY CRYSTALLINE POWDER
Uses	Tetramethylammonium bromide acts as an ion pair reagent. It is used as a surface-active agent and an active ingredient for conditioners. Further, it is used as a softner for textiles and paper products. It is also employed as a disinfection agent, sanitizer, antimicrobial and antistatic agent. In addition to this, it plays in important role as a phase transfer catalyst in synthetic chemistry.
Uses	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).
Definition	ChEBI: The bromide salt of tetramethylammonium.
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.
Purification Methods	Crystallise the bromide from EtOH, EtOH/diethyl ether, MeOH/acetone, water or from acetone/MeOH (4:1) by adding an equal volume of acetone. It is dried at 110o under reduced pressure or at 140o for 24hours. [Beilstein 4 IV 145.]

Tetramethylammonium bromide Preparation Products And Raw materials

Preparation Products

1-Bromoadamantane-->Gamma Butyrolactone-->TETRAMETHYLAMMONIUM BIS(TRIFLUOROMETHYLSULFONYL)IMIDE

Tetramethylammonium bromide

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