Merck
All Photos(1)

470864

Sigma-Aldrich

Bromine

≥99.99% trace metals basis

Empirical Formula (Hill Notation):
Br2
CAS Number:
Molecular Weight:
159.81
EC Number:
MDL number:
PubChem Substance ID:

vapor density

7.14 (vs air)

Quality Level

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.

Packaging

50, 250 g in Sure/Seal™

Other Notes

Contains organic bromine compounds

Signal Word

Danger

Hazard Statements

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

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

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