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Merck
CN

470864

溴

≥99.99% trace metals basis

别名:

二溴

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关于此项目

经验公式（希尔记法）:
Br2
化学文摘社编号:
7726-95-6
分子量:
159.81
NACRES:
NA.22
PubChem Substance ID:
24870690
UNSPSC Code:
12352101
EC Number:
231-778-1
MDL number:
MFCD00010896
Assay:
≥99.5% (by Na2S2O3, titration), ≥99.99% trace metals basis

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InChI key

GDTBXPJZTBHREO-UHFFFAOYSA-N

InChI

1S/Br2/c1-2

SMILES string

BrBr

vapor density

7.14 (vs air)

vapor pressure

175 mmHg ( 20 °C), 671 mmHg ( 55 °C)

assay

≥99.5% (by Na2S2O3, titration), ≥99.99% trace metals basis

resistivity

7.8E18 μΩ-cm, 20°C

impurities

≤0.001% I2, ≤0.001% S compounds, <100 ppm total metallic impurities

evapn. residue

≤0.005%

bp

58.8 °C (lit.)

mp

−7.2 °C (lit.)

density

3.119 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤0.05%

cation traces

Ni: ≤5 ppm, heavy metals: ≤2 ppm

Quality Level

100

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相关类别

Application

溴可用作化学合成中的溴化和氧化试剂。
用于：
  • 在光催化条件下，在苄位溴化烷基苯。
  • 在路易斯酸催化剂存在下，通过亲电芳香取代反应制备芳香族化合物。
  • 在三卤化磷存在下，通过Hell-Volhard-Zelinski反应在羰基位溴化羰基化合物。
  • 在碱存在下，与一级酰胺通过霍夫曼重排反应制备异氰酸酯、甲酸酯或胺类物质。

Other Notes

含有机溴化合物

signalword

Danger

Hazard Classifications

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

存储类别

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

wgk

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Faceshields, Gloves, Goggles

法规信息

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历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
SHBT4021
SHBS7061
SHBQ6654
SHBP8808
SHBN5393

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Bromine
Goehring RR
Encyclopedia of Reagents for Organic Synthesis, Second Edition (2001)
Use of bromine and bromo-organic compounds in organic synthesis
Saikia I, et al.
Chemical Reviews, 116, 6837-7042 (2016)
Chia-Hui Lee et al.
Scientific reports, 5, 10013-10013 (2015-06-13)
Tungsten ditelluride (WTe2) is a transition metal dichalcogenide (TMD) with physical and electronic properties that make it attractive for a variety of electronic applications. Although WTe2 has been studied for decades, its structure and electronic properties have only recently been
Aizhen Huang et al.
Environmental science & technology, 47(1), 518-525 (2012-12-04)
Direct evidence was first demonstrated for the oxidative degradation of decabromodiphenyl ether (BDE209) in aqueous TiO(2) dispersions under UV irradiation (λ > 340 nm). BDE209 was hardly debrominated over TiO(2) in UV-irradiated acetonitrile dispersions, but the addition of water into
John D Sivey et al.
Environmental science & technology, 47(3), 1330-1338 (2013-01-18)
HOBr, formed via oxidation of bromide by free available chlorine (FAC), is frequently assumed to be the sole species responsible for generating brominated disinfection byproducts (DBPs). Our studies reveal that BrCl, Br(2), BrOCl, and Br(2)O can also serve as brominating
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