Sodium Bromide - NaBr

What is Sodium Bromide?

The sodium bromide is an inorganic compound in its dry form a white crystalline powder with a salty and somewhat bitter taste. The chemical formula for sodium bromide in NaBr. Its is a white crystals or white, granular powder having the odor of sulfur dioxide. It does not occur as natural solid due to its solubility, it is extracted from ocean water along with chlorides, iodides and halites. It possesses anticonvulsant properties of any bromide salt and one of the most common salts of hydrobromic acid.

Other names – Bromide salt of sodium


Sodium Bromide


3.21 g/cm³

Molecular Weight/ Molar Mass

102.894 g/mol

Boiling Point

1,396 °C

Melting Point

747 °C

Chemical Formula


Sodium Bromide Structure – NaBr

Sodium bromide

Physical Properties of Sodium Bromide – NaBr


No odour


White, crystalline solid

Covalently-Bonded Unit


Heat capacity

298.15 K, J/mol·K




Readily soluble in water

Chemical Properties of Sodium Bromide – NaBr

  • Sodium bromide reacts with sulfuric acid forms sodium sulfate and hydrogen bromide. The chemical equation is given below.
  • NaBr + H2SO4 → NaHSO4 + HBr

  • Sodium bromide reacts with silver nitrate solution forms silver bromide and sodium nitrate. The chemical equation is given below.
  • AgNO3 + NaBr → AgBr + NaNO3

Uses of Sodium Bromide – NaBr

  • Used as a sedative like other bromides.
  • Used in oil and gas drilling industry is a principal consumer of sodium bromide.
  • Used for its germicidal properties due to liberation of bromine.
  • Used as an antiseptic, detergent, and as a reagent in pharmaceutical preparations.

Health Hazard

Skin rashes are common, high blood levels of bromides may cause serious neurologic and psychologic disturbances.Great danger of toxicity in patients on low salt diets. Sodium bromide is moderately toxic by ingestion and can affect the gastrointestinal and central nervous systems.

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