Sodium nitrate (CAS 7631-99-4)


Sodium nitrate (CAS 7631-99-4)

Sodium nitrate is the chemical compound with the formula NaNO3. This alkali metal nitrate salt is also known as Chile saltpeter (large deposits of which were historically mined in Chile) to distinguish it from ordinary saltpeter, potassium nitrate. The mineral form is also known as nitratine, nitratite or soda niter.

Sodium nitrate is a white deliquescent solid 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 (esp. meats), and solid rocket propellant. It has been mined extensively for these purposes.

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25 kg bag


Industries: Household chemicals, Fertilizers, A-Z catalog, Glass and ceramics, Horticulture, Food industry
Composition: Products A-Z, Nitric acid salts – nitrates, Sodium compounds, Nitrogen compounds
CAS number: 7631-99-4
WE number: 231-554-3
Index number: 007-010-00-4
Chemical formula: NaNO3
Molar mass: 84,99 g/mol
ADR: UN1498

Other physical properties

pH: Ok. 5-9 w temp. 25°C 10% r-r
Melting / freezing point: 307°C w 1013 hPa
Relative density: 2,26 g/cm3 w temp. 20°C
Solubility in water: > 100 g/l w 20°C

Additional information

Dimensions N/A
Available amount

25 kg bag