277576

臭素

ACS reagent, ≥99.5%

• 実験式（ヒル表記法）: Br₂
• CAS番号: 7726-95-6
• 分子量: 159.81
• EC Number: 231-778-1
• MDL番号: MFCD00010896
• UNSPSCコード: 12141915
• PubChem Substance ID: 329753018
• NACRES: NA.21
• アッセイ: ≥99.5%
• グレード: ACS reagent
• フォーム: liquid

特性

• グレード: ACS reagent
• 品質水準: 200
• 蒸気密度: 7.14 (vs air)
• 蒸気圧: 175 mmHg ( 20 °C); 671 mmHg ( 55 °C)
• アッセイ: ≥99.5%
• フォーム: liquid
• 抵抗性: 7.8E18 μΩ-cm, 20°C
• 不純物: organic bromine compounds, passes test; ≤0.001% I₂; ≤0.001% S compounds
• 蒸発残留物質: ≤0.005%
• bp: 58.8 °C (lit.)
• mp: −7.2 °C (lit.)
• 密度: 3.119 g/mL at 25 °C (lit.)
• 微量陰イオン: chloride (Cl^-): ≤0.05%
• 微量陽イオン: Ni: ≤5 ppm; heavy metals: ≤2 ppm
• SMILES記法: BrBr
• InChI: 1S/Br2/c1-2
• InChI Key: GDTBXPJZTBHREO-UHFFFAOYSA-N

詳細

詳細

Bromine is a highly volatile and reactive halogen that can be used as a powerful brominating and oxidizing agent in chemical synthesis.

アプリケーション

Bromine can be used as a brominating agent for the bromination of:

• Aromatic and heterocyclic compounds. 
• Carbonyl compounds at α position to carbonyl groups.
• Aromatic carboxylic acids via Hell-Volhard-Zelinski reaction in the presence of phosphorus trihalides.
• Alkylbenzenes at the benzylic position using photocatalytic conditions.

It can also be used as an oxidizing agent for the oxidation of:

• Primary alcohols to either aldehydes or esters.      
• Secondary alcohols to ketones.

It can also be used as a Lewis acid catalyst to:     

• Convert epoxides and CO₂ to cyclic carbonates in a continuous flow system.     
• Synthesize bis(indolyl)methanes by reacting indoles with carbonyl compounds.

安全性情報

• ピクトグラム: GHS06,GHS05,GHS09
• シグナルワード: Danger
• 危険有害性情報: H314,H330,H400
• 注意書き: P260 - P273 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• 危険有害性の分類: Acute Tox. 1 Inhalation - Aquatic Acute 1 - Eye Dam. 1 - Skin Corr. 1A
• 保管分類コード: 6.1B - Non-combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
• WGK: WGK 2
• 引火点(°F): Not applicable
• 引火点(℃): Not applicable