Sodium Bromide

Sodium Bromide (CAS No: 7647-15-6) Supplier in Europe

Sodium Bromide, a colorless crystalline compound, holds significant value in various industries due to its diverse applications. It is commonly used in medicine, particularly as a sedative and anticonvulsant.

Its role extends to the field of chemistry, where it serves as a reagent and catalyst in numerous reactions.

In the water treatment industry, Sodium Bromide plays a crucial role as a disinfectant when combined with chlorine.

This compound also finds application in the oil drilling industry as a dense solution to control well pressures.

Environmental considerations and safety protocols must always be observed while handling this chemical.

Sodium Bromide’s importance in photography should not be overlooked.

It is used in the preparation of photographic emulsions.

Its ability to combine with silver nitrate creates a photosensitive material crucial for developing films and prints.

Chemical Properties

Sodium Bromide (NaBr) is an inorganic compound that consists of a sodium ion and a bromide ion.

It is highly soluble in water and exhibits hygroscopic properties, meaning it can absorb water from the environment.

Chemical Structure

Sodium Bromide has the chemical formula NaBr.

Its structure consists of one sodium atom (Na) and one bromine atom (Br) connected by an ionic bond.

In crystalline form, NaBr adopts a cubic crystal system similar to that of sodium chloride (NaCl).

The sodium and bromine atoms are arranged in a face-centered cubic lattice, enhancing its stability.

Physical Properties

Sodium Bromide appears as a white, crystalline powder at room temperature.

It has a molar mass of 102.89 g/mol.

The melting point of NaBr is 755°C, and it has a boiling point of 1,390°C.

NaBr is a hygroscopic material, which means it tends to absorb moisture from the air.

This property can affect its handling and storage.

Solubility and Stability

Sodium Bromide is highly soluble in water, with solubility increasing with temperature.

At 0°C, its solubility is about 90g/100mL, rising to about 123g/100mL at 100°C.

It is less soluble in ethanol but still dissolves.

NaBr is stable under normal conditions but can decompose when exposed to strong acids, releasing bromine gas.

Production and Synthesis

Sodium Bromide is produced through several manufacturing processes and synthesized industrially with careful attention to quality control to ensure purity and consistency.

Manufacturing Processes

The production of Sodium Bromide typically involves two main processes: the chemical reaction of sodium hydroxide (NaOH) with bromine (Br2) and the neutralization of hydrobromic acid (HBr) with sodium carbonate (Na2CO3).

A reaction between sodium hydroxide and bromine forms sodium bromide and sodium bromate under controlled conditions.

The byproduct sodium bromate can then be removed via crystallization or other purification methods to yield high-purity sodium bromide.

Alternatively, hydrobromic acid is neutralized using sodium carbonate to produce sodium bromide and water.

This method is often preferred for its efficiency and lower production of byproducts.

Industrial Synthesis

Industrial synthesis of Sodium Bromide is optimized for large-scale production.

The primary methods involve either reacting sodium hydroxide with bromine or neutralizing hydrobromic acid.

In an industrial setting, the reaction conditions are carefully controlled to maximize yield and purity.

For example, temperature and pressure parameters are monitored meticulously.

The high-purity sodium bromide solution is then crystalized, dried, and packaged for distribution.

Various industries, such as pharmaceuticals, water treatment, and photography, demand stringent synthesis procedures to meet their specific purity requirements.

Quality Control

Quality control is a critical aspect of Sodium Bromide production, ensuring each batch meets the required standards.

This involves rigorous testing for impurities and consistency.

Analytical techniques such as High-Performance Liquid Chromatography (HPLC) and Atomic Absorption Spectroscopy (AAS) are commonly employed.

Regular sampling and testing during production help catch any deviations early.

Documentation and traceability are also important, providing a record of production conditions and quality checks.

This ensures that any batch anomalies can be traced and rectified, maintaining the integrity of the supply chain.

Applications

Sodium Bromide is utilized in various fields due to its unique chemical properties. It has significant roles in medical, industrial, and agricultural areas, each benefiting from its distinct attributes.

Medical Uses

Sodium Bromide is used in the medical field primarily as a sedative and anticonvulsant.

It helps manage epilepsy by stabilizing nerve activity.

Historically, it was a common treatment for epilepsy before newer drugs emerged.

While less common today, its effectiveness for certain patients with drug-resistant forms of epilepsy is noteworthy.

Furthermore, it is occasionally included in other pharmaceuticals for its calming effects on the central nervous system.

Industrial Uses

In industrial applications, Sodium Bromide serves multiple purposes.

It is a crucial component in the formulation of completion fluids used in oil and gas drilling operations.

Its ability to create dense fluids helps in well control and prevention of blowouts.

Additionally, Sodium Bromide is involved in the production of photographic chemicals and dyes.

It acts as a source of bromine for various chemical syntheses, further showcasing its versatility in industrial processes.

Agricultural Uses

Sodium Bromide finds applications in the agricultural sector, mainly as a pesticide or soil fumigant.

Its use helps in controlling nematodes, fungi, and weeds, assisting in crop protection and soil health.

By doing so, it improves plant growth and yield. Though usage has declined in some regions due to environmental concerns, it remains an effective tool for specific agricultural needs.