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Merck
CN

244260

Hydrobromic acid

ACS reagent, 48%

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About This Item

Empirical Formula (Hill Notation):
HBr
CAS Number:
10035-10-6
Molecular Weight:
80.91
UNSPSC Code:
12352106
NACRES:
NA.21
PubChem Substance ID:
329752491
MDL number:
MFCD00011323
Beilstein/REAXYS Number:
3587158

Key Documents

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Product Name

Hydrobromic acid, ACS reagent, 48%

InChI

1S/BrH/h1H

SMILES string

Br

InChI key

CPELXLSAUQHCOX-UHFFFAOYSA-N

grade

ACS reagent

vapor density

2.8 (vs air)

vapor pressure

320 psi ( 21.1 °C)
8 mmHg ( 25 °C)

description

48% aqueous HBr

assay

47.0-49.0% (ACS specification)
48%

form

liquid

Quality Level

200

impurities

≤5 ppm Heavy Metals

ign. residue

≤0.002%

solubility

water: soluble at 20 °C

density

1.49 g/mL at 25 °C (lit.)

anion traces

SO42- and SO32-: ≤0.003%
chloride (Cl-): ≤0.05%
iodide (I-): ≤0.003%
phosphate (PO43-): ≤0.001%

cation traces

Fe: ≤1 ppm
Se: ≤0.01 ppm
heavy metals: ≤5 ppm (by ICP-OES)

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Application

Hydrobromic acid can be used as a brominating agent:
  • For the regioselective bromination of anilides to bromoanilides.
  • Oxidative bromination of olefins, alkynes, and ketones to corresponding dibrominated alkanes, dibrominated alkenes, and α-bromoketones.
It can also be used as a catalyst for the aerobic photooxidation of alcohols to corresponding carboxylic acids.

General description

Hydrobromic acid is a strong acid that can be used as a brominating reagent for the electrophilic and radical bromination of olefins, alkynes, and ketones.

Other Notes

ACS specifications same as product 438065

pictograms

CorrosionExclamation mark
GHS05,GHS07

signalword

Danger

Hazard Classifications

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

target_organs

Respiratory system

Storage Class

8B - Non-combustible corrosive hazardous materials

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Information

危险化学品
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Certificates of Analysis (COA)

Lot/Batch Number
MKCZ7033
MKCZ6336
MKCZ4566
MKCX9880
MKCX5245

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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)
Hydrobromic acid-catalyzed Friedel-Crafts type reactions of naphthols.
Xu C, et al.
Royal Society of Chemistry Advances, 4(4), 1559-1562 (2014)
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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