Sodium bromide
General Product Information
| Article | Sodium bromide |
| Synonyms | Lodic acid, Potassium salt |
| CAS No. | 7647-15-6 |
| EEG No. | – |
| EINECS No. | 231-599-9 |
| IMO | – |
| Tariff Code | 28275100 |
| UN No. | – |
| VLG/ADR | – |
Description
Sodium bromide is an inorganic salt composed of sodium and bromide ions. The product comes as a white, crystalline powder or granules and is highly soluble in water. Because of its chemical stability and wide applicability, sodium bromide is a versatile raw material in industrial processes. It is used in the oil and gas industry and at Water Treatment, among others.
Characteristics
- Odor: Odorless.
- Hygroscopic: Yes.
- Color: White.
- Grade: Technical.
- Solubility: Soluble in water.
- Shape: Crystals or powder.
Physical & Chemical Properties
| Chemical Structure | NaBr |
| Molar Weight | 102.89 g/mol |
| Melting Point | 755 °C |
| Boiling Point | 1.396 °C |
| Density | 3.21 g/cm³ |
| Refractive Index | – |
| pH | Approx. 6.5-8.5 (on 1% solution). |
Applications
Sodium bromide is applied in various ways, for instance:
1. Oil & Gas Industry
Used as part of drilling fluids. The high Density of sodium bromide solutions makes it suitable for regulating wellbore pressure at deep wells.
2. Water Treatment
Used in combination with oxidizing agents (such as sodium hypochlorite) to disinfect cooling systems, industrial plants and swimming pools.
3. Laboratories
In analytical chemistry as reagent and standard solution in certain titrations and reactions.
Interessing Links
- CAS Common Chemistry – Sodium Bromide
- European Chemicals Agency (ECHA) – For chemical information and regulations.
- PubChem – Sodium Bromide – Chemical information by the National Library of Medicine of the National Center for Biotechnology Information (NIH-NCBI).
- Wikipedia – Sodium bromide