Sodium Nitrite
Sodium Nitrite
HS Code : 28341000 | CAS NO. : 7632-00-0
Basic Information:
- Chemical Name: Sodium Nitrite
- Formula: NaNO2
- Molecular Weight: 69.00 g/mol
- Appearance: White crystalline/granular powder
- Odour: odourless
- Taste: Tasteless
- Solubility: Freely soluble in water
Packing Details: • 500 gm HDPE Bottle • 1 kg HDPE Bottle• 5 kg HDPE Jar • 10 kg Fiber drum • 25 kg HDPE Drum• 50 kg HDPE Drum
Storage & Handling
- Store in a cool, dry, and well-ventilated area
- Keep container tightly closed and moisture-proof
- Protect from moisture, heat, and direct sunlight
- Keep away from reducing agents, acids, ammonium salts, and combustible materials
- Recommended storage temperature: below 30°C
- Avoid inhalation of dust and direct contact with skin and eyes
- Use gloves, mask, and safety goggles during handling
- Handle in well-ventilated area
- Avoid contamination with other chemicals
- Wash hands thoroughly after handling
Safety
- Strong oxidizing agent – may intensify fire
- Toxic if swallowed; may cause methemoglobinemia (affects oxygen transport in blood)
- Harmful if inhaled (dust)
- Causes eye and skin irritatio
- Avoid contact with acids (may release toxic nitrogen oxides)
- Use gloves, protective clothing, mask, and safety goggles during handling
- In case of ingestion: Seek immediate medical attention
- In case of eye contact: Rinse with plenty of water for at least 15 minutes
- UN NUMBER1500
- Hazard Class: 5.1 (Oxidizing substance)
Industry Wise Application
Food Industry (Preservation & Processing)
- Meat Curing Agent:Used in processed meats (bacon, ham, sausages, hot dogs) to prevent the growth of Clostridium botulinum (the bacterium causing botulism).
- Color Fixative:Reacts with meat myoglobin to produce the desirable pink/red color associated with cured meats.
- Antioxidant:Delays the development of oxidative rancidity, extending the shelf life and maintaining the flavor of cured products.
Corrosion Inhibition (Industrial Applications)
- Closed-Loop Cooling Systems:Acts as a powerful anode inhibitor, forming a protective gamma iron oxide film on steel and aluminum surfaces.
- Industrial Lubricants & Greases:Added to prevent rust in machinery components, gear systems, and steel processing.
- Antifreeze Fluids:Used to neutralize acids and protect metal parts from corrosion in automotive cooling systems.
Chemical Synthesis & Manufacturing
- Dye and Pigment Industry:Crucial in the diazotization process, converting amines into diazo compounds, which are key to manufacturing azo dyes and pigments.
- Pharmaceutical Intermediates:Used in the synthesis of drugs like caffeine, sodium nitroprusside, and various nitrogen-containing compounds.
- Rubber Industry:Employed as a polymer inhibitor and a blowing agent in the production of foam rubber.
Metal Treatment & Mining
- Detinning and Phosphatizing:Utilized in metal surface treatment and in the recycling of tin-plated steel scrap.
- Gold Processing:Acts as a chemical reagent in the refining and mining sector.
Medical Application
- Cyanide Antidote:Administered intravenously (usually alongside sodium thiosulfate) to treat acute cyanide poisoning by inducing methemoglobinemia, which binds with cyanide.
Miscellaneous Uses
- Heat Transfer Salt:Used in molten salt baths for high-temperature heat treatment of metals.
- Wastewater Treatment:Used to control sulfide odors and reduce chemical oxygen demand (COD) in industrial water treatment.
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