The performance structure of sodium nitrite, provided by sodium nitrite manufacturers

The performance structure of sodium nitrite, provided by sodium nitrite manufacturers

Performance structure of sodium nitrite

1. Oxidizing

Contact with organic matter can burn and explode, and emit toxic and irritating nitrogen peroxide and nitrogen oxide gas.

2. Easy deliquescence

It can be oxidized to sodium nitrate in the air. This product is one of the most acutely toxic substances in food additives. Ingestion of large doses of sodium nitrite can change hemoglobin into methemoglobin and lose the ability to transport oxygen, causing hypoxia in body tissues until death.

3. Very hygroscopic

At room temperature, the oxidation is extremely slow in the air. When heated to above 320 ° C, it decomposes and releases nitrogen, oxygen, and nitric oxide, and finally generates sodium oxide. Contact with organic matter is easy to burn and explode. Crystal sodium nitrite has a transition point between 160 and 162 ° C. At this time, physical properties such as expansion, conductivity, specific heat and piezoelectricity all change. It is easily soluble in water and liquid ammonia, and its aqueous solution is alkaline (PH = 9). Slightly soluble in absolute ethanol, methanol and ether. The dew is slowly oxidized to sodium nitrate in the air. Heating to 320 ℃ above liberates oxygen and nitrogen oxide, and finally generates sodium oxide. Contact with organic matter is easy to burn and explode. poisonous!

4. Easy to absorb water

It should be stored in a dry and sealed container. The nitrite in the air is easily oxidized by oxygen. NaNO2 solution is very unstable and cannot be stored for a long time. When NaNO2 meets acid, it will form weak acid and produce brown gas N2O3. Sodium nitrite is poisonous and cannot be tasted.

5. Stability: stable

6. Incompatible materials: strong reducing agent, active metal powder, strong acid, ammonium salt, combustible powder or cyanide

7. Conditions to avoid contact: heated

8. Polymerization hazard: no polymerization

9. Decomposition products: nitrogen oxides