Substance:Bromate ion

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• Molecular formula: BrO₃
• Molar mass: 127.903
• CAS Registry Number: Not available
• Appearance: Not available
• Melting point: Not available
• Boiling point: Not available
• Solubility: Not available
• Safety sheet: Not available
• Spectra: Check on SDBS. Add Spectra (Help).

From Wikipedia

The bromate anion, BrO, is a bromine-based oxoanion. A bromate is a chemical compound that contains this ion. Examples of bromates include sodium bromate, (NaBrO3), and potassium bromate, (KBrO3).

Bromates are formed many different ways in municipal drinking water. The most common is the reaction of ozone and bromide:

Br + O3 → BrO

Electrochemical processes, such as electrolysis of brine without a membrane operating to form hypochlorite, will also produce bromate when bromide ion is present in the brine solution.

Photoactivation (sunlight exposure) will encourage liquid or gaseous chlorine to generate bromate in bromide-containing water.

In laboratories bromates can be synthesized by dissolving Br2 in a concentrated solution of potassium hydroxide (KOH). The following reactions will take place (via the intermediate creation of hypobromite):

Br2 + 2 OH⁻ → Br + BrO + H2O

3 BrO → BrO + 2 Br

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Other names

Bromate (IUPAC Name); bromic acid ion(1-)

References

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