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Merck
CN

207888

Bromine

reagent grade

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About This Item

Empirical Formula (Hill Notation):
Br2
CAS Number:
7726-95-6
Molecular Weight:
159.81
NACRES:
NA.21
PubChem Substance ID:
329752027
UNSPSC Code:
12141915
EC Number:
231-778-1
MDL number:
MFCD00010896
Assay:
98.0-102.0% (by Na2S2O3, titration)
Grade:
reagent grade
Form:
liquid

Key Documents

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Product Name

Bromine, reagent grade

InChI key

GDTBXPJZTBHREO-UHFFFAOYSA-N

InChI

1S/Br2/c1-2

SMILES string

BrBr

grade

reagent grade

vapor density

7.14 (vs air)

vapor pressure

175 mmHg ( 20 °C)
671 mmHg ( 55 °C)

assay

98.0-102.0% (by Na2S2O3, titration)

form

liquid

resistivity

7.8E18 μΩ-cm, 20°C

bp

58.8 °C (lit.)

mp

−7.2 °C (lit.)

density

3.119 g/mL at 25 °C (lit.)

Quality Level

100

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Application

Bromine may be used as one of the reactants in the preparation of:
  • quinones
  • α,β-dibromosuccinic acid
  • (Z)-ethyl 2-bromo-5-(trimethylsilyl)pent-2-en-4-ynoate
  • α,α′-dibromo-2′,4′-dinitro-2(or3 or 4)-(acetyloxy)bibenzyls
  • dibenzylnaphthols
Bromine may be used to catalyze:
  • Aziridination of olefins with chloramine-T to form N-tosyl aziridines.
  • Conversion of epoxides and CO2 to cyclic carbonates in a continuous flow system.

General description

Bromine is present in gaseous form in lower atmosphere generated by marine activity and as a by product produced from the leaded gasoline combustion. It is widely used as a brominating agent.

signalword

Danger

Hazard Classifications

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

Storage Class

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

wgk

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
SHBT1509
SHBS5074
SHBS1836
SHBQ9711
SHBQ9738

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Metal Free Conducting PEDOS, PEDOT, and Their Analogues via an Unusual Bromine-Catalyzed Polymerization.
Patra A, et al.
Macromolecules, 48(24), 8760-8764 (2015)
Use of Bromine and Bromo-Organic Compounds in Organic Synthesis.
Saikia I, et al.
Chemical Reviews (2016)
The chemistry of atmospheric bromine.
Wofsy SC, et al.
Geophysical Research Letters, 2(6), 215-218 (1975)
Reaction of bromine and chlorine with phenolic compounds and natural organic matter extracts-Electrophilic aromatic substitution and oxidation.
Criquet J, et al.
Water Research, 85, 476-486 (2015)
Jennifer A Kozak et al.
Journal of the American Chemical Society, 135(49), 18497-18501 (2013-11-22)
A continuous method for the formation of cyclic carbonates from epoxides and carbon dioxide (CO2) is described. The catalysts used are inexpensive and effective in converting the reagents to the products in a residence time (t(R)) of 30 min. The
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