Sodium Bromide

Description:

Sodium Bromide (NaBr) is a white crystalline salt that is highly soluble in water. It is the most common bromide salt and is primarily used as a source of bromide ions in various applications. Sodium Bromide finds significant use in pharmaceuticals, chemical synthesis, oil drilling fluids, and water treatment. It has applications in photography, medicine, and as a disinfectant in pools and spas.

Key Properties:

• Appearance: White crystalline powder or granules
• Molecular Weight: 102.89 g/mol
• Melting Point: 755°C
• Boiling Point: 1390°C
• Density: 3.21 g/cm³
• Solubility: Highly soluble in water (85 g/100 mL at 25°C)
• Odor: Odorless
• pH: Neutral (around 6.5-8.0 in a 5% solution)

Applications:

1. Pharmaceuticals:
   • Sedative: Historically used as a sedative and anticonvulsant in the treatment of epilepsy and seizures. Though largely replaced by newer medications, Sodium Bromide is still occasionally used in veterinary medicine.
   • Nerve Function: It was once used to treat anxiety and other nervous disorders, thanks to its calming effects on the central nervous system.
2. Water Treatment:
   • Disinfectant in Pools and Spas: Sodium Bromide is used as a disinfectant, particularly in conjunction with chlorine or ozone to produce bromine, which is an effective sanitizer for swimming pools and spas. It helps control algae, bacteria, and other contaminants.
   • Biocide: Used in industrial water systems and cooling towers to prevent bacterial growth.
3. Oil & Gas Industry:
   • Completion and Workover Fluids: Sodium Bromide is commonly used in oil well drilling and completion fluids as a dense, clear brine. It helps maintain wellbore pressure during drilling operations and stabilizes the formation.
4. Chemical Synthesis:
   • Source of Bromide Ions: It serves as a bromide source in organic synthesis and various chemical reactions. Sodium Bromide is used in the production of bromine-containing compounds.
5. Photography:
   • Photographic Emulsion: Sodium Bromide is an essential component in the preparation of silver bromide, which is used in the production of photographic films and papers.
6. Textile Industry:
   • Dyeing and Printing: It is used in the textile industry as a dyeing assistant for the treatment of wool and other fibers.

Advantages:

• Wide Range of Applications: Sodium Bromide’s versatility makes it useful in several industries, including oil and gas, water treatment, and pharmaceuticals.
• Effective Disinfectant: When combined with chlorine or ozone, it produces bromine, which is a strong and effective disinfectant.
• High Solubility: Its high solubility in water makes it ideal for use in aqueous solutions and brines.

Handling and Storage:

• Storage Conditions: Store in a cool, dry, well-ventilated area, away from moisture and incompatible materials like strong acids.
• Shelf Life: Stable under normal storage conditions. Avoid contact with moisture to prevent caking.
• Handling Precautions: Wear protective gloves, goggles, and appropriate clothing when handling large quantities. Avoid inhalation, ingestion, or contact with skin and eyes. In case of contact, rinse immediately with water.