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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:
12352302
eCl@ss:
38050405
PubChem Substance ID:
329752283
NACRES:
NA.21

grade

FT-IR grade

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

signalword

Warning

hcodes

H319

Hazard Classifications

Eye Irrit. 2

Storage Class

13 - Non Combustible Solids

wgk_germany

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.
Shimosaki R, et al.
Synlett, 2006(14), 2287-2289 (2006)
Ville Petteri Heljo et al.
Pharmaceutical research, 28(3), 540-552 (2010-10-23)
The purpose of this study is to show how disaccharides differ in their ability to protect lyophilized β-galactosidase from enzymatic activity loss and secondary structure changes during storage. β-galactosidase was lyophilized with trehalose, sucrose, cellobiose or melibiose at 2:1, 20:1
Madhusmita Dhupal et al.
International journal of nanomedicine, 13, 6735-6750 (2018-11-15)
Titanium dioxide nanoparticles (TiO2 NPs) represent a scientific breakthrough in the areas of biological and medicinal applications. Interaction of TiO2 NPs with components of innate immune system remains elusive. This study explored in vitro immunotoxicity of murine macrophage RAW 264.7
An efficient bromination of alkenes using cerium (IV) ammonium nitrate (CAN) and potassium bromide.
Nair V, et al.
Tetrahedron, 57(34), 7417-7422 (2001)
Mild and regioselective oxidative bromination of anilines using potassium bromide and sodium perborate.
Roche D, et al.
Tetrahedron Letters, 41(13), 2083-2085 (2000)
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