Skip to Content
Merck
CN

470864

Sigma-Aldrich

Bromine

≥99.99% trace metals basis

Synonym(s):

Dibromine

Sign Into View Organizational & Contract Pricing

About This Item

Empirical Formula (Hill Notation):
Br2
CAS Number:
7726-95-6
Molecular Weight:
159.81
EC Number:
231-778-1
MDL number:
MFCD00010896
UNSPSC Code:
12352101
PubChem Substance ID:
24870690
NACRES:
NA.22

Key Documents

View All Documentation
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

vapor density

7.14 (vs air)

Quality Level

100

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

SMILES string

BrBr

InChI

1S/Br2/c1-2

InChI key

GDTBXPJZTBHREO-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

Related Categories

Application

Bromine can be used as a brominating and oxidizing agent in chemical synthesis.
It can be used:
  • To brominate alkylbenzenes at the benzylic position using photocatalytic conditions.
  • To prepare brominated aromatic compounds by electrophilic aromatic substitution reactions in the presence of Lewis acid catalysts.
  • For the bromination of carbonyl compounds at a carbonyl group via Hell-Volhard-Zelinski reaction in the presence of phosphorus trihalides.
  • To prepare isocyanates, carbamates, or amines by reacting with primary amides in the presence of base via Hofmann rearrangement.

Other Notes

Contains organic bromine compounds

Signal Word

Danger

Hazard Statements

H314,H330,H400

Hazard Classifications

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

Storage Class Code

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

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

新产品

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
SHBS7061
SHBQ6654
SHBP8808
SHBN5393
MKCK4524

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

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)
Jenny Rattfelt Nyholm et al.
The Science of the total environment, 443, 307-314 (2012-12-04)
The environmental occurrence of potentially emerging brominated flame retardants (BFRs) was investigated near suspected source zones in Norway, within seepage water, sewage waste water, sewage sludges, and sediments. Analyzed emerging BFRs included 1,2-dibromo-4-(1,2-dibromoethyl) cyclohexane (TBECH), 1,2-bis(2,4,6-tribromophenoxy) ethane (BTBPE), decabromodiphenylethane (DBDPE)
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
View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service