Sodium Nitrate Sodium Nitride, Formula, Chemical Properties, Preparation, Application

Sodium Nitrate

Sodium nitrate is an inorganic sodium salt that has consists of one nitrogen bonds with the three oxygen bonds. While the sodium acts as the cations and the nitrate acts as an anions. When the single bonded atoms is reacted with the oxygen atoms it decomposes over the heat temperature. At that time the electronics are displaced from the nitrite ion to the sodium nitrate. It is the compostion of the sodium and nitrate. The systematic IUPAC name is known as sodium nitrate . The chemical or molecular formula of sodium nitrate is NaNo3. The other names are peru saltpeter, soda niter and cubic niter.

Structural Formula

This is the structural formula of the sodium nitrate:


Sodium Nitrate 

Chemical Formula

The chemical formula of the sodium nitrate is NaNo3.

Preparation Method

Sodium nitrate can be prepared by the process of exothermic reactions. When the nitric acid is reacted with the sodium carbonate or sodium bicarbonate it gives the formation of sodium nitrate. Carbon dioxide and water as the byproduct. By mixing the stoichiometric compounds it further reacts with the sodium hydroxide with the small amount of ammonium nitrate.

Learn More:   Barium Hydroxide, Formula, Chemical Properties, Preparation, Uses

2 HNO3 + Na2CO­3 → 2 NaNO3 + H2O + CO2

HNO3 + NaHCO3 → NaNO3 + H2O + CO2

Physical Properties

Melting point 308C
Boiling point 380C
Molecular weight 84.99g/mol
Density 2.257g/cm3
Solubility in water 73g/100g water (0C)
Refractive index 1.587
Crystal structure Trigonal and rhombohedral
Magnetic susceptibility -25.6×10-6cm3/mol
Appearance White powder or colourless crystals
Odor Sweet
Viscosity 2.85cP

Chemical Properties

Sodium nitrate is the non combustible and very highly soluble substances. It has bitter in taste. It slightly dissolves in pyridine and insoluble in acetone. It has colourless and odourless compounds. It is trigonal and rhombohedral in structure.


Sodium nitrate is a food additive and also acts as a food preservative. NaNo3 is a component used for storage and transfer the heat to solar power plants. It is also used as a oxidizer in fire works. The fertilizers are manufactured for the plant growth.



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