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 Structure
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
PH5.5-6.5 (100g/l, H2O)
OdorOdorless
Water Solubility soluble
Sensitive Hygroscopic
λmaxλ: 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 Reference64-20-0(CAS DataBase Reference)
NIST Chemistry ReferenceTetramethylammonium bromide(64-20-0)
EPA Substance Registry SystemMethanaminium, 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
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Tetramethylammonium bromide English
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Tetramethylammonium bromide Usage And Synthesis
Chemical PropertiesSLIGHTLY GREY CRYSTALLINE POWDER
UsesTetramethylammonium 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.
UsesTetrabutylammonium 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).
DefinitionChEBI: The bromide salt of tetramethylammonium.
General DescriptionTetrabutylammonium 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 MethodsCrystallise 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 Products1-Bromoadamantane-->Gamma Butyrolactone-->TETRAMETHYLAMMONIUM BIS(TRIFLUOROMETHYLSULFONYL)IMIDE
Tetramethylammonium nitrate SODIUM TETRATHIONATE DIHYDRATE TETRAMETHYLAMMONIUM BROMIDE PERBROMIDE D-ARABINOSE-1-13C CETYLDIMETHYLETHYLAMMONIUM BROMIDE S-ACETYLTHIOCHOLINE BROMIDE ACETYLCHOLINE BROMIDE Phenyltrimethylammonium bromide Tetrapropylammonium bromide BROMIDE dodecyltrimethylammonium DECAMETHONIUM BROMIDE HEXAMETHONIUM BROMIDE Didecyldimethylammonium bromide tetramethylammonium METHACHOLINE BROMIDE Benzyldodecyldimethylammonium bromide Phenyltrimethylammonium tribromide

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