- Tetramethyl Ammonium Bromide
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- $5.00 / 1KG
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2025-09-25
- CAS:64-20-0
- Min. Order: 1KG
- Purity: 99%
- Supply Ability: g-kg-tons, free sample is available
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| | Tetramethylammonium bromide Basic information |
| | Tetramethylammonium bromide Chemical Properties |
| Melting point | >300 °C (lit.) | | Boiling point | >360°C | | bulk density | 450kg/m3 | | 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 | | Odor | Odorless | | PH | 5.5-6.5 (100g/l, H2O) | | Water Solubility | soluble | | 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 | | Sensitive | Hygroscopic | | BRN | 3620955 | | InChI | 1S/C4H12N.BrH/c1-5(2,3)4;/h1-4H3;1H/q+1;/p-1 | | InChIKey | DDFYFBUWEBINLX-UHFFFAOYSA-M | | SMILES | [Br-].C[N+](C)(C)C | | 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) |
| 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 | TSCA listed | | HazardClass | 6.1 | | PackingGroup | II | | HS Code | 29239000 | | Storage Class | 6.1A - Combustible acute toxic Cat. 1 and 2
very toxic hazardous materials | | Hazard Classifications | Acute Tox. 2 Oral |
| | 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 |
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