426296

四甲基溴化铵

ACS reagent, ≥98.0%

• 别名: N,N,N-trimethyl-methanaminium bromide, TMAB
• 线性分子式: (CH₃)₄N(Br)
• CAS号: 64-20-0
• 分子量: 154.05
• Beilstein: 3620955
• EC號碼: 200-581-2
• MDL號碼: MFCD00011626
• 分類程式碼代碼: 12352100
• PubChem物質ID: 24866694
• NACRES: NA.21

属性

• 等級: ACS reagent
• 品質等級: 200
• 化驗: ≥98.0%
• 形狀: powder
• 雜質: ≤0.5% trimethylamine hydrobromide; ≤0.5% trimethylamine
• mp: >300 °C (lit.)
• SMILES 字串: [Br-].C[N+](C)(C)C
• InChI: 1S/C4H12N.BrH/c1-5(2,3)4;/h1-4H3;1H/q+1;/p-1
• InChI 密鑰: DDFYFBUWEBINLX-UHFFFAOYSA-M

说明

一般說明

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.

應用

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).

安全信息

• 象形圖: GHS06
• 訊號詞: Danger
• 危險聲明: H300
• 防範說明: P301 + P330 + P331 + P310
• 危險分類: Acute Tox. 2 Oral
• 儲存類別代碼: 6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
• 水污染物質分類（WGK）: WGK 3
• 閃點（°F）: Not applicable
• 閃點（°C）: Not applicable
• 個人防護裝備: Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges