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Merck
CN

02110

溴化钾

puriss., meets analytical specification of Ph. Eur., BP, USP, 99.5-100.5%

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线性分子式:
KBr
化学文摘社编号:
7758-02-3
分子量:
119.00
PubChem Substance ID:
329747387
eCl@ss:
38050405
UNSPSC Code:
12352302
EC Number:
231-830-3
MDL number:
MFCD00011358

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InChI key

IOLCXVTUBQKXJR-UHFFFAOYSA-M

InChI

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

SMILES string

[K+].[Br-]

vapor pressure

<0.01 mmHg ( 20 °C), 1 mmHg ( 795 °C)

grade

puriss.

assay

99.5-100.5%

quality

meets analytical specification of Ph. Eur., BP, USP

impurities

acidity or alkalinity, complies, residual solvents, complies, ≤0.0005% ammonium (NH4), ≤0.001% heavy metals (as Pb), ≤0.02% Mg, alkaline earth metals (as Ca)

loss

≤0.3% loss on drying, 130 °C

pH

5-8 (20 °C, 5%)

mp

734 °C (lit.)

anion traces

bromate (BrO3-): ≤10 mg/kg, chloride (Cl-): ≤2000 mg/kg, iodide (I-): ≤200 mg/kg, sulfate (SO42-): ≤50 mg/kg

cation traces

As: ≤3 mg/kg, Ba: ≤10 mg/kg, Ca: ≤50 mg/kg, Fe: ≤10 mg/kg, Mg: ≤20 mg/kg, Na: ≤1500 mg/kg

suitability

complies for appearance of solution

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General description

Potassium bromide (KBr) is an alkaline-earth halide. Density, viscosity and electrolytic conductivity of concentrated aqueous solutions of alkaline-earth halides have been evaluated.

Application

可用于除去外周膜蛋白。
Potassium bromide may be employed in the following studies:
  • Spectrophotometric determination of aromatic amino compounds.
  • Preparation of AgBr nanoparticles (NPs).
  • In combination with cerium(iv) ammonium nitrate (CAN), has been employed for the bromination of alkenes.
  • As oxidant for the selective monobromination of various deactivated anilines.

pictograms

Exclamation mark
GHS07

signalword

Warning

hcodes

H319

Hazard Classifications

Eye Irrit. 2

存储类别

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

法规信息

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Petr Suchomel et al.
PloS one, 10(3), e0119202-e0119202 (2015-03-18)
The diverse mechanism of antimicrobial activity of Ag and AgBr nanoparticles against gram-positive and gram-negative bacteria and also against several strains of candida was explored in this study. The AgBr nanoparticles (NPs) were prepared by simple precipitation of silver nitrate
Xiao-hang Yin et al.
Guang pu xue yu guang pu fen xi = Guang pu, 35(1), 193-197 (2015-05-23)
The problems such as chromogenic reaction selectivity, reaction rate, sensitivity and water-solubility of azo compounds were considered. The molecular structures of coupling components were theoretically designed and screened in the present research The reaction conditions and methods of chromogenic reaction
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)
Density, viscosity, and electrolytic conductivity of concentrated aqueous electrolyte solutions at several temperatures. Alkaline-earth chlorides, lanthanum chloride, sodium chloride, sodium nitrate, sodium bromide, potassium nitrate, potassium bromide, and cadmium nitrate.
Isono T.
Journal of Chemical and Engineering Data, 29(1), 45-52 (1984)
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