426296

Tetramethylammonium bromide

ACS reagent, ≥98.0%

• 동의어(들): N,N,N-trimethyl-methanaminium bromide, TMAB
• Linear Formula: (CH₃)₄N(Br)
• CAS Number: 64-20-0
• Molecular Weight: 154.05
• Beilstein: 3620955
• EC Number: 200-581-2
• MDL number: MFCD00011626
• UNSPSC 코드: 12352100
• PubChem Substance ID: 24866694
• NACRES: NA.21

속성

• Grade: ACS reagent
• Quality Level: 200
• 분석: ≥98.0%
• 형태: powder
• 불순물: ≤0.5% trimethylamine hydrobromide; ≤0.5% trimethylamine
• mp: >300 °C (lit.)
• 작용기: amine
• SMILES string: [Br-].C[N+](C)(C)C
• InChI: 1S/C4H12N.BrH/c1-5(2,3)4;/h1-4H3;1H/q+1;/p-1
• InChI key: DDFYFBUWEBINLX-UHFFFAOYSA-M

설명

일반 설명

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.

애플리케이션

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).

안전성 정보

• 픽토그램: GHS06
• 신호어: Danger
• 유해 및 위험 성명서: H300
• 예방조치 성명서: P301 + P330 + P331 + P310
• Hazard Classifications: Acute Tox. 2 Oral
• Storage Class Code: 6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
• WGK: WGK 3
• Flash Point (°F): Not applicable
• Flash Point (°C): Not applicable
• 개인 보호 장비: Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges