Sodium nitrate
[Product Nature]
Molecular formula: NaNO3
English name: Sodium Nitrate
CAS No.: 7631-99-4
Molecular weight: 84.99
Colorless transparent or white with slightly yellowish diamond shaped crystals, with a density of 2.257 (at 20 ℃) and a melting point of 308 ℃. When heated to 380 ℃, it begins to decompose into sodium nitrite and oxygen, and is slightly soluble in glycerol and ethanol. It is easily deliquescent. When containing a very small amount of sodium chloride impurities, the deliquescence of sodium nitrate is greatly increased. It has oxidizing properties. Contact with flammable materials can cause explosions. Irritating to the respiratory system and skin.
Usage: Used for manufacturing potassium nitrate, explosives, picric acid, and other nitrates. It can also be used as a defoamer and decolorizer for glass, a solvent aid for enamel industry, a tobacco combustion aid, a metal cleaning agent, and a coloring agent for preparing black metal bluing agents, aluminum alloy heat treatment, and molten caustic soda.
[Purpose] This product is widely used in industries such as fertilizers, gunpowder, glass, metallurgy, pigments, fireworks, etc. Raw materials for manufacturing potassium nitrate, mining explosives, picric acid, dyes, etc. Nitrifying agent for manufacturing dye intermediates. Glass industry is used as defoamer, decolorizer, clarifying agent, and oxidation flux. It can also be used for anti-corrosion, chemical reagents, pharmaceuticals, and metal heat treatment.
Sodium nitrate is the raw material for the manufacture of potassium nitrate, mine explosives, picric acid, dyes, etc. Nitrifiers for the manufacture of dye intermediates. The glass industry is used as antifoam, decolorizer, clarifier and oxidative fluxing agent for the production of various glasses and their products. The enamel industry uses as oxidants and fluxes for the formulation of enamel powders. The mechanical industry is used as a metal cleaner and also in the formulation of ferrous bluing agents. Metallurgical industry is used as steelmaking and aluminum alloy thermal treatment agents. Light industry used as a fuel aid in the manufacture of cigarettes. The pharmaceutical industry uses culture media for penicillin. Fertilizers the industry is used as a rapid acting fertilizer suitable for acidic soils, especially for root tuber crops such as sugar beets and radishs and so on. Also used as decolorizing agent for molten carnitine. High purity analytical reagents, spectroscopic reagents, oxidizing agents and also used in dye synthesis and the manufacture of explosives and fireworks. Nitrates all have early and strong effects, especially at low temperatures and negative temperatures, acting as early and antifreezing agents. Used in toothpaste as a corrosion inhibitor, desensitizing agent, to prevent dentin sensitization. Sodium nitrate is mainly used in the field of water treatment as a corrosion inhibitor, boiler metal embrittlement. In addition, there is a wide range of uses in other areas. The addition of sodium nitrate inside the low pressure boiler system inhibits the corrosion of metals on the water side and prevents the embrittlement of metallic materials. Sodium nitrate, when used as an inhibitor of metal embrittlement, needs to be used in complex with sodium hydroxide and maintained in a certain ratio. Plating grade or chemically pure sodium nitrate can be used for plating black chromium additions, also in black chromium plating electrolyte, as well as in the low chromate passivation of the zinc coated layer, and in the oxidation solutions of zinc, magnesium and magnesium alloys.
Matter Classification
organic
Melting Point
306 °C (dec.)
Density
1.1 g/mL at 25 °C
Appearance
White to yellow solid
Acidity and Basicity
neutral,
oxidizability
Export Formalities
7,A,B,v
N,M,S
Risk Code
R22; R36/37/38; R8