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268003

Sigma-Aldrich

Hydrobromic acid

reagent grade, 48%

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Empirical Formula (Hill Notation):
HBr
CAS Number:
Molecular Weight:
80.91
Beilstein:
3587158
MDL number:
PubChem Substance ID:
NACRES:
NA.21

grade

reagent grade

Quality Level

vapor density

2.8 (vs air)

vapor pressure

320 psi ( 21.1 °C)
8 mmHg ( 25 °C)

description

48% aqueous HBr

Assay

48%

form

liquid

density

1.49 g/mL at 25 °C (lit.)

SMILES string

Br

InChI

1S/BrH/h1H

InChI key

CPELXLSAUQHCOX-UHFFFAOYSA-N

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This Item
244260158534339245
Hydrobromic acid reagent grade, 48%

Sigma-Aldrich

268003

Hydrobromic acid

Essential Grade
Hydrobromic acid ACS reagent, 48%

Sigma-Aldrich

244260

Hydrobromic acid

-
Hydrobromic acid 48 wt. % in H2O, ≥99.99%

Sigma-Aldrich

339245

Hydrobromic acid

-
vapor density

2.8 (vs air)

vapor density

2.8 (vs air)

vapor density

5.2 (vs air)

vapor density

2.8 (vs air)

vapor pressure

320 psi ( 21.1 °C), 8 mmHg ( 25 °C)

vapor pressure

320 psi ( 21.1 °C), 8 mmHg ( 25 °C)

vapor pressure

8 mmHg ( 25 °C)

vapor pressure

320 psi ( 21.1 °C), 8 mmHg ( 25 °C)

assay

48%

assay

47.0-49.0% (ACS specification), 48%

assay

98%

assay

≥99.99%

form

liquid

form

liquid

form

liquid

form

liquid

density

1.49 g/mL at 25 °C (lit.)

density

1.49 g/mL at 25 °C (lit.)

density

1.696 g/mL at 25 °C (lit.)

density

1.49 g/mL at 25 °C (lit.)

General description

Hydrobromic acid is the strongest mineral acid that is used as a brominating agent in the preparation of organobromine compounds and inorganic bromides. It is also used as a catalyst in a variety of organic reactions.

Application

Hydrobromic acid can be used as:      
  • A catalyst in transesterification reactions.      
  • A reagent to synthesize cellulose nanocrystals (CNCs) via acidic hydrolysis of cotton fibers.     
  • A reactant to prepare denitrosation reagent.

Pictograms

CorrosionExclamation mark

Signal Word

Danger

Hazard Statements

Hazard Classifications

Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1B - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

8B - Non-combustible, corrosive hazardous materials

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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Hydrobromic acid-catalyzed Friedel-Crafts type reactions of naphthols.
Xu C, et al.
Royal Society of Chemistry Advances, 4(4), 1559-1562 (2014)
The oxidation of acetophenones to arylglyoxals with aqueous hydrobromic acid in dimethyl sulfoxide.
Floyd MB, et al.
The Journal of Organic Chemistry, 50(25), 5022-5027 (1985)
Production of cellulose nanocrystals using hydrobromic acid and click reactions on their surface.
Sadeghifar H, et al.
J. Mater. Sci., 46(22), 7344-7355 (2011)
Efficient bromination of olefins, alkynes, and ketones with dimethyl sulfoxide and hydrobromic acid.
Song S, et al.
Green Chemistry, 17(6), 3285-3289 (2015)
M Y Mirza
Talanta, 27(2), 101-106 (1980-02-01)
The extraction of Pd(II), Rh(III), Ir(III), Au(III) and Pt(IV) from hydrochloric and hydrobromic acid with 5% tri-iso-octylamine solution in carbon tetrachloride has been studied. The gold extract from hydrochloric acid is yellow and absorbs at 325 nm, the palladium compound

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