Sodium bromate

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Sodium bromate
Names
IUPAC name
Sodium bromate
Other names
Sodium bromate(V)
Properties
NaBrO3
Molar mass 150.89 g/mol
Appearance White crystalline solid
Odor Odorless
Density 3.339 g/cm3 (25 °C)
Melting point 381 °C (718 °F; 654 K) (decomposition)
Boiling point Decomposes
27.5 g/100 ml (0 °C)
36.4 g/100 ml (20 °C)
48.8 g/100 ml (40 °C)
90.8 g/100 ml (100 °C)
Solubility Soluble in liq. ammonia
Insoluble in ethanol, ethyl acetate, hexane, toluene
Vapor pressure ~0 mmHg
Thermochemistry
130.5 J·mol-1·K-1
-342.5 kJ/mol
Hazards
Safety data sheet Sigma-Aldrich
Flash point Non-flammable
Lethal dose or concentration (LD, LC):
400 mg/kg (rat, oral)
Related compounds
Related compounds
Potassium bromate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Sodium bromate is an inorganic chemical compound with the formula NaBrO3, the sodium salt of bromic acid.

Properties

Chemical

Addition of a strong acid, like conc. sulfuric acid to sodium bromate will yield bromic acid, which immediately decomposes to bromine, oxygen and water.

Physical

Sodium bromate is a colorless solid compound, soluble in water.

Availability

Sodium bromate is sold by chemical suppliers. Can also be bought online from suppliers.

Preparation

Sodium bromate can be prepared by adding elemental bromine to a hot solution of sodium hydroxide or carbonate.

Electrolysis of sodium bromide solutions will give bromate, similar to the production of chlorates.[1]

Projects

Handling

Safety

Sodium bromate is an oxidizer and should be handled with care. Bromate in drinking water is undesirable because it is a suspected human carcinogen.

Storage

In closed bottles.

Disposal

Should be reduced to sodium bromide and disposed of.

References

  1. https://www.youtube.com/watch?v=6L7aKdBtwVs

Relevant Sciencemadness threads