Sodium Nitrite

Sodium Nitrite

CAS Number : 7632-00-0
IUPAC Name : Sodium nitrite
HS Code : 28341000
Formula : NaNO₂
Basic Info
Appearance Name : White to slightly yellowish crystalline powder
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A salt used in food preservation, corrosion prevention, and industrial processes such as metal treatment. It is also used in water treatment and pharmaceuticals for its antimicrobial properties.

1. Food Preservation – Used as a curing agent in processed meats like bacon, ham, and sausages to prevent bacterial growth (especially *Clostridium botulinum*) and enhance color and flavor.

2. Pharmaceuticals & Medical Use – Used in emergency medicine as an antidote for cyanide poisoning by inducing methemoglobin formation, which binds to cyanide and neutralizes its toxicity.

3. Industrial Applications – Used in metal treatment and corrosion inhibition, particularly in cooling systems and antifreeze formulations to prevent rust and oxidation in machinery and pipelines.

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