Sodium Nitrite Industrial Grade for Dyestuff and Pigment, Concrete, antifreeze
Sodium nitrite, commonly known as nitrite of soda or simply nitrite, is a chemical compound with the formula NaNO2. It appears as a white to slightly yellowish crystalline powder and is soluble in water. Sodium nitrite is used for various purposes across different industries, including:
Physical and chemical properties:
Properties: White or slightly yellowish orthorhombic crystal or powder. Slightly salty. Easy to deliquesce.
Melting point 271ºC
Relative density 2.168
Solubility: Easily soluble in water and liquid ammonia, and its aqueous solution is alkaline. Slightly soluble in absolute ethanol, methanol and ether.
Product Usage:
Used as mordant, bleach, metal heat treatment agent, electroplating corrosion inhibitor, and used in medicine as instrument disinfection and preservative.
1. Food Industry: Sodium nitrite is primarily used as a food additive, serving as a preservative and color fixative in processed meats such as bacon, ham, hot dogs, and sausages. It helps prevent bacterial growth, which can cause botulism. Additionally, it contributes to the characteristic pink color and flavor of cured meats.
2. Industrial Applications: Sodium nitrite is utilized in various industrial processes, including metal surface treatment to inhibit corrosion and as a chemical reagent in the synthesis of organic compounds. It is also employed in the production of dyes, pharmaceuticals, and other chemicals.
3. Medicinal Use: In medicine, sodium nitrite has been used in the treatment of cyanide poisoning due to its ability to convert hemoglobin to methemoglobin, which binds cyanide and facilitates its excretion from the body.
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