426296

Bromure de tétraméthylammonium

ACS reagent, ≥98.0%

• Synonyme(s) : N,N,N-trimethyl-methanaminium bromide, TMAB
• Formule linéaire : (CH₃)₄N(Br)
• Numéro CAS: 64-20-0
• Poids moléculaire : 154.05
• Numéro Beilstein : 3620955
• Numéro CE : 200-581-2
• Numéro MDL: MFCD00011626
• Code UNSPSC : 12352100
• ID de substance PubChem : 24866694
• Nomenclature NACRES : NA.21

Propriétés

• Qualité: ACS reagent
• Niveau de qualité: 200
• Pureté: ≥98.0%
• Forme: powder
• Impuretés: ≤0.5% trimethylamine hydrobromide; ≤0.5% trimethylamine
• Pf: >300 °C (lit.)
• Groupe fonctionnel: amine
• Chaîne SMILES: [Br-].C[N+](C)(C)C
• InChI: 1S/C4H12N.BrH/c1-5(2,3)4;/h1-4H3;1H/q+1;/p-1
• Clé InChI: DDFYFBUWEBINLX-UHFFFAOYSA-M

Description

Description générale

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).

Informations sur la sécurité

• Pictogrammes: GHS06
• Mention d'avertissement: Danger
• Mentions de danger: H300
• Conseils de prudence: P301 + P330 + P331 + P310
• Classification des risques: Acute Tox. 2 Oral
• Code de la classe de stockage: 6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
• Classe de danger pour l'eau (WGK): WGK 3
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable
• Équipement de protection individuelle: Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges