Sodium Nitrite

Properties:
1. Appearance: Sodium nitrite is typically presented as a white to slight yellowish crystalline solid.
2. Chemical Formula: The chemical formula for sodium nitrite is NaNO2.
3. Solubility: It is readily soluble in water, which makes it convenient for use in various aqueous solutions.
4. Stability: Sodium nitrite is stable under normal conditions but can decompose under certain conditions, releasing potentially harmful gases.
5. Oxidizing Properties: It acts as an oxidizing agent, which means it can contribute to the combustion process.

Applications:
1. Preservation: Sodium nitrite is widely used in the food industry as a preservative, particularly in the curing of meats to maintain a pink color and to prevent the growth of Clostridium botulinum, the bacteria responsible for botulism.
2. Water Treatment: It is used in water treatment processes to control the growth of algae and other microorganisms.
3. Industrial Processes: Sodium nitrite is also used in various industrial applications such as the manufacture of diazotizing compounds, which are important in the textile industry for dyeing and printing processes.
4. Laboratory Use: It is utilized in laboratories for the preparation of various chemical compounds and as an intermediate in the synthesis of pharmaceuticals and other chemicals.

Item	Standard
Content of sodium nitrite (calculated by dry base) %	≥98.5
Content of sodium nitrate (calculated by dry base) %	≤1.0
Content of chloride(NaCl) (calculated by dry base) %	≤0.17
Content of insolubles in water (calculated by dry base) %	≤0.06
Moisture %	≤2.0