8.20171

Bromine

for synthesis

• 同義詞: Bromine
• CAS號碼: 7726-95-6
• 分子量：: 159.81
• MDL號碼: MFCD00010896
• 分類程式碼代碼: 12352300
• 酶委員會索引編號: 231-778-1
• NACRES: NA.22

屬性

• 蒸汽壓力: 233 hPa ( 20 °C)
• 品質等級: 200
• 形狀: liquid
• 反應適用性: reagent type: oxidant
• 運動黏度: 0.314 cSt(20 °C)
• bp: 58.8 °C/1013 hPa
• mp: -7.3 °C
• 溶解度: 35 g/L
• 密度: 3.12 g/cm³ at 20 °C (liquid)
• 儲存溫度: 15-25°C
• InChI: 1S/BrH/h1H/p-1
• InChI 密鑰: CPELXLSAUQHCOX-UHFFFAOYSA-M

描述

一般說明

for synthesis

應用

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

• Primary alcohols to either aldehydes or esters and secondary alcohols to give ketones.
• Alcohols or diols to tetrahydrofurans in the presence of silver(I) salts.
• Enediol bis-trimethylsilyl ethers to α-diketones.
• Aldehydes to esters in the presence of alcohol solvents and sodium bicarbonate buffer.
• Aliphatic and aromatic thiols to disulfides.

Bromine can also be used along with other co-reactants such as hexamethylphosphoric triamide (HMPA) and bis(tributyltin) oxide (HBD) to selectively oxidize secondary alcohols. However, bromine/nickel carboxylates convert 1,4-diols to γ-butyrolactones by selective oxidation of the primary alcohols.

分析報告

Assay (iodometric)≥ 99.0 %AppearanceBrownish-red fuming liquid

安全資訊

• 象形圖: GHS05,GHS06,GHS09
• 訊號詞: Danger
• 危險聲明: H314 - H330 - H400
• 防範說明: P260 - P273 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• 危險分類: Acute Tox. 1 Inhalation - Aquatic Acute 1 - Eye Dam. 1 - Skin Corr. 1A
• 儲存類別代碼: 6.1B - Non-combustible, acute toxic Cat. 1 and 2 / very toxic hazardous materials
• 水污染物質分類（WGK）: WGK 2
• 閃點（°F）: Not applicable
• 閃點（°C）: Not applicable