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 | |
| Std molar
entropy (S |
130.5 J·mol-1·K-1 |
| Std enthalpy of
formation (ΔfH |
-342.5 kJ/mol |
| Hazards | |
| Safety data sheet | Sigma-Aldrich |
| Flash point | Non-flammable |
| Lethal dose or concentration (LD, LC): | |
| LD50 (Median dose)
|
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.
Contents
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
- Oxidizing agent
- Belousov–Zhabotinsky reaction
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.
