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| Tetramethylammonium bromide Basic information |
| Tetramethylammonium bromide Chemical Properties |
| 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 |
| 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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