Ammonium Bromide
Ammonium Salt of Hydrobromic Acid
- CAS
- 12124-97-9
- EC
- 235-183-8
- Sectors
- Oil, Gas & Energy, Plastics & Polymers, Textiles, Leather & Paper
Ammonium Bromide (CAS 12124-97-9) is the ammonium salt of hydrobromic acid, a white crystalline solid supplied as a powder that dissolves readily in water and serves as a controlled bromide source for clear-brine completion fluids, photographic emulsions and flame-retardant systems. It is widely used as a controlled bromide source and intermediate in photographic, chemical, and oilfield applications. Its hygoscopic nature requires careful packaging and storage to maintain purity.
Typical Properties
| Molecular formula | BrH4N |
|---|---|
| Molecular weight | 97.94 g/mol |
| Appearance | white crystals |
| Form | Powder/Solid |
| Color | White |
| Odor | Odorless |
| Melting point | 235 °C |
| Boiling point | 452 °C |
| Density | 2.429 g/cm³ @ Temp: 25 °C |
| Water solubility | 97 g/100 mL (25 °C) |
| pH | 5.0-6.0 (25°C, 50mg/mL in H2O) |
| GHS signal word | Danger · Irritant / harmful, Health hazard, Environmental hazard |
| HS code | 28275900 |
| Grades available | Technical Grade |
Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.
Ammonium Bromide
Applications
In the photographic industry, ammonium bromide is utilized in light-sensitive emulsions for film and plate manufacturing. In oil and gas operations, it is a key additive in clear-brine completion fluids to control formation pressure. It also serves as a catalyst component in organic synthesis and flame-retardant systems.
Safety & Risks
Moderately irritating to eyes and skin; prolonged exposure can lead to bromine-related effects. Avoid contact with oxidizing agents, acids, and heat sources that release bromine vapors. Provide adequate ventilation and personal protection.
Packaging
Supplied in 25 kg HDPE-lined bags or fiber drums. Store sealed in a cool, dry environment away from moisture and incompatible materials.