426296

Tetramethylammonium bromide

ACS reagent, ≥98.0%

• Sinônimo(s): N,N,N-trimethyl-methanaminium bromide, TMAB
• Fórmula linear: (CH₃)₄N(Br)
• Número CAS: 64-20-0
• Peso molecular: 154.05
• Beilstein: 3620955
• Número CE: 200-581-2
• Número MDL: MFCD00011626
• Código UNSPSC: 12352100
• ID de substância PubChem: 24866694
• NACRES: NA.21
• Ensaio: ≥98.0%
• grau: ACS reagent
• Formulário: powder

Propriedades

• grau: ACS reagent
• Nível de qualidade: 200
• Ensaio: ≥98.0%
• Formulário: powder
• Impurezas: ≤0.5% trimethylamine hydrobromide; ≤0.5% trimethylamine
• pf: >300 °C (lit.)
• grupo funcional: amine
• cadeia de caracteres SMILES: [Br-].C[N+](C)(C)C
• InChI: 1S/C4H12N.BrH/c1-5(2,3)4;/h1-4H3;1H/q+1;/p-1
• chave InChI: DDFYFBUWEBINLX-UHFFFAOYSA-M

Descrição

Descrição geral

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.

Aplicação

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).

Informações de segurança

• Pictogramas: GHS06
• Palavra indicadora: Danger
• Frases de perigo: H300
• Declarações de precaução: P301 + P330 + P331 + P310
• Classificações de perigo: Acute Tox. 2 Oral
• Código de classe de armazenamento: 6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
• Classe de risco de água (WGK): WGK 3
• Ponto de fulgor (°F): Not applicable
• Ponto de fulgor (°C): Not applicable
• Equipamento de proteção individual: Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges