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Product Details:
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| Purity: | 99.0% | Shelf Life: | 2 Years |
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| Einecs No: | 231-555-9 | Boiling Point: | 320°C |
| Packing: | 25kg/Bag | Grade Standard: | Industrial Grade |
| Molecular Weight: | 69.0 G/mol | Type: | Sodium Nitrite |
| Cas Number: | 7632-00-0 | Colorappearance: | White Or Light Yellow Crystal |
| Appearance: | White Or Slightly Yellowish Crystalline Powder | Content: | 98% |
| Package: | 25 KG/BAG | Solubility: | Soluble In Water And Ethanol |
| Application: | Industrial Grade |
NaNO2 Sodium Nitrite 25 KG/BAG White Powder CAS 7632-00-0
Sodium nitrite (NaNO₂) is an inorganic salt formed by the combination of nitrite ions and sodium ions. Sodium nitrite is easily deliquescent and soluble in water and liquid ammonia. Its aqueous solution is alkaline with a pH of about 9. It is slightly soluble in organic solvents such as ethanol, methanol. Sodium nitrite has a salty taste and is also used to make fake table salt. Sodium nitrite reacts with oxygen to form sodium nitrate when exposed to air. If heated to above 320°C, it decomposes to form oxygen, nitrogen oxides, and sodium oxide. It is easy to burn and explode when in contact with organic matter.
| Test Items | Standard | Test Results |
| Content of sodium nitrite(NaNO2) % | ≥ 98.5 | 99 |
| Content of sodium nitrate(NaNO3) % | ≤ 1.3 | 1 |
| Content of chloride(NaCl) % | ≤ 0.17 | 0.082 |
| Content of insolubles in water % | ≤ 0.06 | 0.017 |
| Moisture % | ≤ 2 | 0.8 |
| Apperance of product | White fine crystal with slightly yellowish | |
| Package and Trade mark | By woven plastic bag outer and white plastic bag inner | |
| Remark | First Quality | |
1. It is oxidizing. It can burn and explode when in contact with organic matter, and release toxic and irritating nitrogen peroxide and nitrogen oxide gases.
2. It is easy to deliquesce and can be oxidized to sodium nitrate in the air.
3. It is very hygroscopic. It oxidizes very slowly in the air at room temperature. It decomposes and releases nitrogen, oxygen, and nitric oxide when heated to above 320℃, and finally generates sodium oxide.
4. It is easy to absorb water and should be stored in a dry and sealed container. Nitrite is easily oxidized by oxygen in the air. NaNO2 solution is very unstable and cannot be stored for a long time. NaNO2 will form weak acid when it meets acid and produce brown gas N2O3.
5. Prohibited materials: strong reducing agents, active metal powders, strong acids, ammonium salts, Iberster bases, combustible powders or cyanides.
6. Avoid contact with heat.
7. Polymerization hazards do not polymerize.
8. Decomposition products: nitrogen oxides.
Sodium nitrite is an industrial salt. Although it is very similar to table salt sodium chloride, it is not edible. Sodium nitrite is widely used in pickling meat. If cyanosis of methemoglobin occurs, methylene blue can be used to reduce methemoglobin. The reason why sodium nitrite is poisonous is that the iron contained in hemoglobin in the human body is ferrous iron, which can combine with oxygen and transport oxygen to various parts of the body through blood circulation. When sodium nitrite is ingested by mistake, a chemical reaction occurs in the blood, causing hemoglobin to be converted into trivalent iron hemoglobin. Trivalent iron hemoglobin cannot carry oxygen, thus causing hypoxia poisoning in the human body. In addition, sodium nitrite can also generate carcinogens in the human body. Newly pickled kimchi also contains sodium nitrite (so kimchi is best eaten 15 days after pickling, and the nitrite content in it will gradually decrease).
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