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60085

Sigma-Aldrich

Potassium bromate

puriss. p.a., ACS reagent, ≥99.8% (dried material, RT)

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50 G
$61.80
250 G
$269.00

About This Item

Linear Formula:
KBrO3
CAS Number:
7758-01-2
Molecular Weight:
167.00
EC Number:
231-829-8
MDL number:
MFCD00011359
UNSPSC Code:
12352302
PubChem Substance ID:
329758751
NACRES:
NB.24
assay:
≥99.8% (dried material, RT)
form:
powder or crystals
solubility:
water: soluble(lit.)

$61.80

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grade

ACS reagent
puriss. p.a.

Quality Level

200

assay

≥99.8% (dried material, RT)

form

powder or crystals

impurities

≤0.001% total nitrogen (N)

pH

5.0-9.0 (25 °C, 50 mg/mL in H2O)

solubility

water: soluble(lit.)

anion traces

bromide (Br-): ≤200 mg/kg
sulfate (SO42-): ≤50 mg/kg

cation traces

Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Na: ≤100 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg

SMILES string

[K+].[O-]Br(=O)=O

InChI

1S/BrHO3.K/c2-1(3)4;/h(H,2,3,4);/q;+1/p-1

Inchi Key

OCATYIAKPYKMPG-UHFFFAOYSA-M

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General description

Potassium bromate (KBrO3) is a colorless solid having trigonal crystals. On heating above 430°C, it degrades and liberates oxygen. It is strongly oxidizing in nature. Its industrial synthesis from potassium bromide via anodic oxidation has been reported.[1] Its quantitative estimation by sensitive flow-injection chemiluminescence method has been proposed.[2] Its standardization has been reported by iodometric titration against sodium thiosulphate (hypo) solution.[3]

Application

Potassium bromate (KBrO3) may be used in volumetric determinations.[1] It may be used as an oxidizing reagent for the oxidation of neomenthol. Kinetics and mechanism of the oxidation reaction has been investigated.[3]

Other Notes

For the in situ production of bromine in TLC[4]; Primary standard for bromometry[5]

signalword

Danger

Hazard Classifications

Acute Tox. 3 Oral - Carc. 1B - Ox. Sol. 1

Storage Class

5.1A - Strongly oxidizing hazardous materials

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
BCCL2478
BCCM0404
BCCJ5675
BCCF7731
BCCD5400

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C. Long, E. & F.N. Spon
Biochemists Handbook, 13-13 (1971)
Kinetics and Mechanism of the Oxidation of Neomenthol by Potassium Bromate in Acidic Solution.
Meena R and Sharma S.
International Journal of Pharmacological Research, 4(1), 25-33 (2014)
Chemiluminescence determination of potassium bromate in flour based on flow injection analysis.
Yan Z, et al.
Food Chemistry, 190, 20-24 (2016)
[ANALYSIS OF DIGITALIS CARDENOLIDES BY THIN LAYER CHROMATOGRAPHY].
L FAUCONNET et al.
Pharmaceutica acta Helvetiae, 38, 423-429 (1963-07-01)
Alice Limonciel et al.
Archives of toxicology, 86(11), 1741-1751 (2012-07-05)
Potassium bromate (KBrO(3)) is an oxidising agent that has been widely used in the food and cosmetic industries. It has shown to be both a nephrotoxin and a renal carcinogen in in vivo and in vitro models. Here, we investigated
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