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221864

Sigma-Aldrich

Potassium bromide

FT-IR grade, ≥99% trace metals basis

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About This Item

Linear Formula:
KBr
CAS Number:
7758-02-3
Molecular Weight:
119.00
EC Number:
231-830-3
MDL number:
MFCD00011358
UNSPSC Code:
12352300
eCl@ss:
38050405
PubChem Substance ID:
329752283
NACRES:
NA.21

grade

FT-IR grade

Quality Level

200

vapor pressure

<0.01 mmHg ( 20 °C)
1 mmHg ( 795 °C)

Assay

≥99% trace metals basis

form

powder or crystals

technique(s)

FTIR: suitable

pH

5-6 (25 °C, 119 g/L)

mp

734 °C (lit.)

SMILES string

[K+].[Br-]

InChI

1S/BrH.K/h1H;/q;+1/p-1

InChI key

IOLCXVTUBQKXJR-UHFFFAOYSA-M

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General description

Potassium bromide, a water-soluble inorganic salt, is redox reagent.

Application

Potassium bromide may be used along with:
  • Cerium(IV) ammonium nitrate (CAN) for synthesizing dibromides via alkene bromination.
  • Sodium perborate for synthesizing brominated anilines via oxidative bromination of unprotected aromatic amines.
  • Hydrochloric acid and hydrogen peroxide for the bromination of active methylene and methyne compounds with high chemoselectivity.
Suitable for use with FT-IR spectrometers
May be used for removal of peripheral membrane proteins.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H319

Hazard Classifications

Eye Irrit. 2

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Chemoselective bromination of active methylene and methyne compounds by potassium bromide, hydrochloric acid and hydrogen peroxide.
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Mild and regioselective oxidative bromination of anilines using potassium bromide and sodium perborate.
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