Sodium nitrate

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Infobox on Sodium nitrate
Example of Sodium nitrate
Sodium nitrate.jpg
Origin Chili, Peru
Stowage factor (in m3/t)
  • 1,39/1,97 m3/t (bulk)
  • 0,99 m3/t (bagged)
Humidity / moisture -
Ventilation No
Risk factors See text

Sodium nitrate

Description / Application

Sodium nitrate is the chemical compound with the formula NaNO3. This salt is also known as Chile saltpeter or Peru saltpeter (due to the large deposits found in each country) to distinguish it from ordinary saltpeter, potassium nitrate. The mineral form is also known as nitratine, nitratite or soda niter.

Sodium nitrate comprises colourless, transparent, odourless crystal; very soluble in water. It is a readily available source of the nitrate anion (NO3-), which is useful in several reactions carried out on industrial scales for the production of fertilizers, pyrotechnics and smoke bombs, glass and pottery enamels, food preservatives, and solid rocket propellant. It has been mined extensively for these purposes.

Shipment / Storage / Risk factors

Although non-combustible, mixtures with combustible material are readily ignited and may burn fiercely. This cargo is hygroscopic and will cake if wet. To be separated from foodstuffs.

Melting point 308°C.
Boiling point 380°C, decomposes

The product is listed as a dangerous commodity in the IMDG Code. Also consult the IMSBC Code (International Maritime Solid Bulk Cargoes Code) and applicable MSDS sheet.