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60085 Sigma-Aldrich

Potassium bromate

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

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Properties

Related Categories Analytical Reagents, Analytical Reagents for General Use, Analytical/Chromatography, Essential Chemicals, O-P, Puriss p.a. ACS,
grade   ACS reagent
InChI Key   OCATYIAKPYKMPG-UHFFFAOYSA-M
grade   puriss. p.a.
assay   ≥99.8% (dried material, RT)
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

Description

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

Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Hazard statements 
Precautionary statements 
RIDADR 
UN 1484 5.1 / PGII
WGK Germany 
3
RTECS 
EF8725000

Documents

Certificate of Analysis

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Protocols & Articles
Peer-Reviewed Papers
15

References

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