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:
分子量:
159.81
NACRES:
NA.22
PubChem Substance ID:
UNSPSC Code:
12352101
EC Number:
231-778-1
MDL number:
Assay:
≥99.5% (by Na2S2O3, titration), ≥99.99% trace metals basis
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
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Application
溴可用作化学合成中的溴化和氧化试剂。
用于：
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
hcodes
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
新产品
此项目有
Use of bromine and bromo-organic compounds in organic synthesis
Saikia I, et al.
Chemical Reviews, 116, 6837-7042 (2016)
Bromine
Goehring RR
Encyclopedia of Reagents for Organic Synthesis, Second Edition (2001)
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
Kimberly T Barrett et al.
Journal of the American Chemical Society, 135(8), 2963-2966 (2013-02-16)
We report the enantioselective synthesis of atropisomeric benzamides employing catalytic electrophilic aromatic substitution reactions involving bromination. The catalyst is a simple tetrapeptide bearing a tertiary amine that may function as a Brønsted base. A series of tri- and dibrominations were
Vitalij V Levin et al.
Organic letters, 15(4), 917-919 (2013-02-02)
Reactions of difluorocarbene with benzyl and alkylzinc halides leading to fluorinated organozinc species have been described. The generated α-difluorinated organozinc reagents are reasonably stable in solution and can be quenched with external electrophiles (iodine, bromine, proton), affording compounds containing the
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