Sodium Nitrate

Product name: Sodium Nitrate - NaNO3 - Sodium Nitrate

Formula: NaNO3

Origin: Germany /China

Packing: 25 kg / bag

CAS: 7631-99-4

Appearance: A white solid soluble in water.

Melting point: 308 ° C

Molecular weight: 84.9947 g / mol

Boiling point: 380 ° C

Density: 2.26 g / cm³

CID PubChem: 24268

Sodium nitrate is the chemical compound with the formula NaNO₃. This alkali metal nitrate salt is also known as Chile saltpeter(because large deposits of this salt can be found 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 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.

Hobbyist gold refiners use sodium nitrate to make a hybrid aqua regia that dissolves gold and other metals.

Sodium nitrate is also a food additive used as a preservative and color fixative in cured meats and poultry.

Less common applications include as an oxidizer in fireworks, replacing potassium nitrate commonly found in black powder, and as a component in instant cold packs.

Sodium nitrate is used together with potassium nitrate and calcium nitrate for heat storage and, more recently, for heat transfer in solar power plants. A mixture of sodium nitrate, calcium nitrate and potassium nitrate is used as energy-storage material in prototype plants, such as Andasol Solar Power Station and the Archimedes project.^[

It is also used in the wastewater industry for facultative microorganism respiration.

Sodium nitrate is also sometimes used by marine aquarists who utilize carbon-dosing techniques. It is used to increase nitrate levels in the water and promote bacterial growth.