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60085

Sigma-Aldrich

Potassium bromate

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

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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

grade

ACS reagent
puriss. p.a.

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. Its quantitative estimation by sensitive flow-injection chemiluminescence method has been proposed. Its standardization has been reported by iodometric titration against sodium thiosulphate (hypo) solution.

Application

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

Other Notes

For the in situ production of bromine in TLC; Primary standard for bromometry

Signal Word

Danger

Hazard Statements

H271,H301,H350

Precautionary Statements

P201 - P210 - P301 + P310 + P330

Hazard Classifications

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

Storage Class Code

5.1A - Strongly oxidizing hazardous materials

WGK

WGK 3

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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C. Long, E. & F.N. Spon
Biochemists Handbook, 13-13 (1971)
[ANALYSIS OF DIGITALIS CARDENOLIDES BY THIN LAYER CHROMATOGRAPHY].
L FAUCONNET et al.
Pharmaceutica acta Helvetiae, 38, 423-429 (1963-07-01)
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)
Kevin J Lee et al.
PloS one, 14(10), e0223725-e0223725 (2019-10-10)
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