potassium bromate

• ChemBase ID: 129056
• Molecular Formular: BrKO3
• Molecular Mass: 167.0005
• Monoisotopic Mass: 165.86678754
• SMILES: [K+].[O-][Br](=O)=O
• Canonical SMILES: [O-][Br](=O)=O.[K+]
• InChI: InChI=1S/BrHO3.K/c2-1(3)4;/h(H,2,3,4);/q;+1/p-1
• InChIKey: OCATYIAKPYKMPG-UHFFFAOYSA-M

NAMES AND DATABASE IDS

Names

• IUPAC name: potassium bromate
• IUPAC Traditional name: potassium bromate
• Synonyms: Potassium bromate(V); Bromic acid, potassium salt; Potassium bromate; Potassium bromate solution; Potassium bromate, Acculute Standard Volumetric Solution, Final Concentration 0.1N; Potassium bromate, ACS; Potassium bromate solution; Potassium bromate concentrate; Potassium bromate; 溴酸钾 溶液; 溴酸钾, 可稀释标准标定液, 最终浓度 0.1N; 溴酸钾, ACS; 溴酸钾

Database IDs

• CAS Number: 7758-01-2
• EC Number: 231-829-8
• MDL Number: MFCD00011359
• Merck Index: 147617
• PubChem SID: 162223356; 24898841; 24881787; 24858708; 24860719; 24853460; 24863769
• PubChem CID: 23673461
• CHEBI ID: 38211
• Chemspider ID: 22852
• KEGG ID: C19295
• Wikipedia Title: Potassium_bromate

CALCULATED PROPERTIES

• Acid pKa: -29.820747
• H Acceptors: 3
• H Donor: 0
• LogD (pH = 5.5): -2.1853838
• LogD (pH = 7.4): -2.1853838
• Log P: 0.19101496
• Molar Refractivity: 13.0639 cm^3
• Polarizability: 5.874396 Å^3
• Polar Surface Area: 57.2 Å^2
• Rotatable Bonds: 0
• Lipinski's Rule of Five: true

PROPERTIES

Physical Property

• Solubility: 3.1 g/100 mL (0 °C) ; 6.91 g/100 mL (20 °C); 13.3 g/100 mL (40 °C) ; 49.7 g/100 mL (100 °C) in water; H2O: soluble0.1 M at 20 °C, clear, colorless; H2O: soluble0.5 M, clear, colorless; slightly soluble in alcohol ; insoluble in acetone, ethanol; Slightly soluble in cold water. Soluble in boiling water
• Apperance: Granular; Liquid; white crystalline powder
• Melting Point: 350°C; 370°C dec.; ca 370°C dec.
• Boiling Point: 370 °C (decomposes)
• Flash Point: Non-flammable
• Density: 3.27; 3.27 g/cm^3
• pH: 5.0-8.0 (25 °C, 0.1 M in H2O); 5.0-9.0 (25 °C, 5%); 5.0-9.0 (25 °C, 50 mg/mL in H2O)

Safety Information

• RTECS: EF8725000
• European Hazard Symbols: Carc. Cat. 2; Oxidising (O); Oxidant (O); Toxic (T); Toxic (T)
• UN Number: 1484; UN1484
• German water hazard class: 3
• Hazard Class: 5.1
• Packing Group: 2; II
• Risk Statements: 45; 45-22; 45-9-25; R45 R9 R25
• Safety Statements: 53-45; S53 S45
• TSCA Listed: 是
• EU Index: 035-003-00-6
• GHS Pictograms: GHS03; GHS06; GHS08
• GHS Signal Word: Danger
• NFPA704:
  

  0

  2

  2

  OX
• LD50: 321 mg/kg
• GHS Hazard statements: H271-H300; H271-H301; H271-H301-H350; H350
• GHS Precautionary statements: P201-P220-P301 + P310-P308 + P313; P201-P308 + P313; P221-P283-P210-P301+P310-P405-P501A
• Personal Protective Equipment: Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P2 (EN 143) respirator cartridges, type P3 (EN 143) respirator cartridges; Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges; Eyeshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter
• RID/ADR: UN 1484 5.1/PG 2

Product Information

• Purity: ≥99%; ≥99.0%; ≥99.0% (RT); ≥99.5% (RT); ≥99.8%; ≥99.8% (dried material, RT); 99%; 99.8% min
• Concentration: 1/60 M KBrO3 (0.1N)
• Grade: ACS reagent; JIS special grade; puriss. p.a.; purum; purum p.a.; ReagentPlus®; SAJ first grade
• Packaging: pkg of 1/60 mol (2.784 g KBrO3)
• Impurities: ≤0.0005% Phosphorus (P); ≤0.001% total nitrogen (N); ≤0.002% heavy metals (as Pb); ≤0.005% Insoluble matter; ≤0.005% insolubles; insoluble matter, passes filter test
• Cation Traces: Al: ≤0.0005%; Al: ≤5 mg/kg; As: ≤0.1 mg/kg; Ba: ≤5 mg/kg; Bi: ≤5 mg/kg; Ca: ≤0.0005%; Ca: ≤10 mg/kg; Ca: ≤50 mg/kg; Cd: ≤5 mg/kg; Cd: ≤50 mg/kg; Co: ≤5 mg/kg; Co: ≤50 mg/kg; Cr: ≤5 mg/kg; Cu: ≤0.0005%; Cu: ≤5 mg/kg; Cu: ≤50 mg/kg; Fe: ≤0.0005%; Fe: ≤0.002%; Fe: ≤20 mg/kg; Fe: ≤5 mg/kg; Fe: ≤50 mg/kg; heavy metals (as Pb): ≤5 ppm; Li: ≤5 mg/kg; Mg: ≤0.001%; Mg: ≤5 mg/kg; Mn: ≤5 mg/kg; Mo: ≤5 mg/kg; Na: ≤0.005%; Na: ≤0.01%; Na: ≤100 mg/kg; Na: ≤200 mg/kg; Na: ≤5000 mg/kg; NH4+: ≤0.05%; Ni: ≤5 mg/kg; Ni: ≤50 mg/kg; Pb: ≤0.001%; Pb: ≤5 mg/kg; Pb: ≤50 mg/kg; Sr: ≤5 mg/kg; Zn: ≤0.0005%; Zn: ≤5 mg/kg; Zn: ≤50 mg/kg
• Antion Traces: bromide (Br-): ≤200 mg/kg; bromide (Br-): ≤500 mg/kg; bromide (Br-): passes test; chloride (Cl-): ≤0.05%; sulfate (SO42-): ≤0.005%; sulfate (SO42-): ≤100 mg/kg; sulfate (SO42-): ≤50 mg/kg
• Shelf Life: (limited shelf life, expiry date on the label)
• Quality: volumetric
• Factor: 1.000 ±0.002
• λ: 0.1 M in H2O
• Product Line: BioUltra
• abs.: absorption0.1M/257 nm, H2O cut-off
• Linear Formula: KBrO3

DETAILS

Sigma Aldrich - 34268

General description
Visit our Titration Center to learn more.

Sigma Aldrich - 38080

Caution
Restricted to professional users. Attention - Avoid exposure - obtain special instructions before use.
General description
Visit our Titration Center to learn more.
concentration after dilution to 1L: 1/60mol/L (0.1N); amount of substance 1/60mol (2.784 g KBrO3)

Sigma Aldrich - 60085

Other Notes
For the in situ production of bromine in TLC1; Primary standard for bromometry2

Sigma Aldrich - 224855

Legal Information
ReagentPlus is a registered trademark of Sigma-Aldrich Co. LLC

Sigma Aldrich - 309087

Application
Powerful brominating agent for deactivated aromatics.1
Packaging
100, 500 g in poly bottle
5 g in glass bottle

REFERENCES

• Brominates deactivated aromatics, for example nitrobenzene, in conc. sulfuric acid by in situ generation of HOBr: J. Org. Chem., 46, 2169 (1981).