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Merck
CN

8.20171

Bromine

for synthesis

别名:

Bromine

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关于此项目

化学文摘社编号:
分子量:
159.81
UNSPSC Code:
12352300
EC Index Number:
231-778-1
NACRES:
NA.22
MDL number:
Form:
liquid
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vapor pressure

233 hPa ( 20 °C)

Quality Segment

form

liquid

reaction suitability

reagent type: oxidant

kinematic viscosity

0.314 cSt(20 °C)

bp

58.8 °C/1013 hPa

mp

-7.3 °C

solubility

35 g/L

density

3.12 g/cm3 at 20 °C (liquid)

storage temp.

15-25°C

SMILES string

[Br-]

InChI

1S/BrH/h1H/p-1

InChI key

CPELXLSAUQHCOX-UHFFFAOYSA-M

General description

for synthesis

Application

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.

Analysis Note

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


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signalword

Danger

Hazard Classifications

Acute Tox. 1 Inhalation - Aquatic Acute 1 - Eye Dam. 1 - Skin Corr. 1A

wgk

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

存储类别

6.1B - Non-combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials



历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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