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Sodium Nitrate



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Product details:

- Product Name: Sodium Nitrate

- Formulas : NaNO3

- Chemical composition : BASF-Tech-25kg

- Product Type: Chemical for mining

Product description :

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 asnitratine, nitratite or soda niter.

Sodium nitrate is a white solid which is very soluble in water. It may be used as a constituent of fertilizers, pyrotechnics and smoke bombs, glass and pottery enamels, as a food preservative and a solid rocket propellant. It has been mined extensively for these purposes.

Applications

Sodium nitrate was used extensively as a fertilizer and a raw material for the manufacture of gunpowder in the late 19th century. It can be combined with iron hydroxide to make a synthetic resin.

Sodium nitrate can be used in the production of nitric acid by combining it with sulfuric acid and subsequent separation throughfractional distillation of the nitric acid, leaving behind a residue of sodium bisulfate. 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 it is listed under its INS number 251 or E number E251. It is approved for use in the EU,[5] USA[6] and Australia and New Zealand.[7] Sodium nitrate should not be confused with sodium nitrite, which is also a common food additive and preservative used for example, in deli meats.

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.[8]

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 Archimede project.

It is also used in the wastewater industry for facultative microorganism respiration. Nitrosomonas, a genus of microorganisms, consumes nitrate in preference to oxygen, enabling it to grow more rapidly in the wastewater to be treated.

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.


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