sodium nitrate
Product Overview:
Chinese name: sodium nitrate
English name: Sodium nitrate
Product Category: Inorganic Chemicals/Inorganic Salts
CAS NO： 7631-99-4
EC NO： 231-554-3
UN： 1498
Molecular formula: NaNO3
The appearance is white fine crystals, some with light gray or light yellow. The relative molecular mass is 84.99 and the specific gravity is 2.257. Easy to deliquesh, easily soluble in water and liquid ammonia. Slightly soluble in ethanol and glycerin, melting point of 306 °C, decomposition temperature 380 °C, decomposition products for sodium nitrite and oxygen, heating to a higher temperature when the decomposition intensified, the production of oxygen, nitrogen, nitrogen oxide compound mixture gas. It has strong oxidation and can cause combustion explosion when mixed with organic matter, sulfur, sulfites, etc.
This product is an important chemical raw material, widely used in glass, dyes, explosives, metallurgy, machinery, enamel and other industries.
1. This product should be stored in a ventilated and dry place. Protected from rain, heat and sunlight.
2. This product should be avoided and co-stored with acids, metal powders, wood chips, gauze, paper, sugar, sulfur and other organic flammables and reducibles.
3. When this product is handled and palletized, it should be gently held and placed to prevent friction and impact.
4. The fire caused by sodium nitrate can be extinguished with a large amount of water.
GB/T4553-2002
Performance characteristics:
Physical
Relative density: 2.26
Melting Point(°C): 308
Solubility: 1g soluble in 1.1ml water, 0.6ml boiling water, 125ml ethanol, 52ml boiling ethanol, 3470ml absolute ethanol, 300ml anhydrous methanol, also soluble in liquid ammonia and glycerin.
Chemical properties
It absorbs heat when dissolved in water. Heating to above 380 °C that is, decomposition into sodium nitrite and oxygen, 400 to 600 °C when releasing nitrogen and oxygen, 700 °C release nitric oxide, 775 ~ 865 °C when there is a small amount of nitrogen dioxide and nitrous oxide generation. Coheating with sulfuric acid produces nitric acid and sodium bisulfate. It can play a complex decomposition role with salts. It is an oxidizing agent. Contact with wood chips, cloth, oil and other organic matter can cause combustion and explosion.
Chemical expression NaNO3.
Technical parameters:
project | High purity grade | Premium products | First class | Qualified products | Dry powder |
Sodium nitrate (in terms of dry basis) % ≥ | 99.8 | 99.7 | 99.3 | 98.5 | 99.3 |
Sodium nitrite (on a dry basis) % ≤ | 0.008 | 0.01 | 0.02 | 0.15 | 0.02 |
Chloride (NaCl) (in terms of dry base)% ≤ | 0.05 | 0.25 | 0.30 | —— | 0.25 |
Water insoluble matter (in terms of dry base) % ≤ | 0.01 | 0.03 | 0.06 | —— | 0.03 |
Moisture %≤ | 1.0 | 1.0 | 1.5 | 2.00 | 0.2 |
Sodium carbonate content (in terms of dry basis) % ≤ | 0.02 | 0.05 | 0.10 | —— | 0.1 |
Iron (Fe) content %≤ | 0.002 | 0.005 | —— | —— | 0.005 |
Looseness ≥ | —— | —— | —— | —— | 95 |
