Sodium bromide

Sodium bromide (NaBr) is a salt composed of two elements: sodium (Na) and bromine (Br). It is a white, crystalline powder that is odorless and has a salty taste. Sodium bromide is soluble in water and is often used in various industrial applications, as well as in medicine and photography.

History

Sodium bromide was first discovered in the 19th century. It was initially used in medicine as a sedative and anticonvulsant, but its use has since been largely replaced by other, safer medications.

Production

Sodium bromide can be produced by treating sodium hydroxide with hydrobromic acid. This reaction produces sodium bromide and water. The chemical equation for this reaction is:

NaOH + HBr → NaBr + H2O

Uses

Sodium bromide has a variety of uses in different industries. In the oil industry, it is used as a dense fluid for drilling and completion activities. In the pharmaceutical industry, it is used in the manufacture of certain types of drugs. In photography, it is used as a component in some types of photographic emulsions.

In addition, sodium bromide is used in water treatment processes. It acts as a disinfectant to control algae, bacteria, and other harmful organisms in water.

Safety

While sodium bromide is generally safe to handle, it can cause irritation if it comes into contact with the skin or eyes. Ingestion can lead to nausea, vomiting, and other gastrointestinal symptoms. Chronic exposure can lead to bromism, a condition characterized by skin rashes, mental confusion, and other symptoms.

See also

• Sodium chloride
• Sodium iodide
• Potassium bromide