Sodium Nitrite

Sodium nitrite appears as a yellowish white crystalline solid. Sodium nitrite is an inorganic sodium salt having nitrite as the counterion. It has a role as an antimicrobial food preservative, an antihypertensive agent, a food antioxidant, a poison and an antidote to cyanide poisoning. It is a nitrite salt and an inorganic sodium salt. Sodium nitrite solution appears as a clear colorless to yellow solution.


Molar Weight68.995 g/mol
Melting Point272.8°C
Boiling Point115°C
Density2.168 g/cc
FormsPowder, Yellow, Crystalline

Uses and Applications

Key applications

  • Oxidising agent
  • Corrosion inhibitor and anti-scaling agent
  • Pharmaceuticals


  • Pharma
  • Chemical Processing
  • Coatings & Construction
  • Food

Synonyms: SODIUM NITRITE, 0, Nitrous acid, sodium salt, sodiumnitrite, Erinitrit, Filmerine, Natrium nitrit, Nitrito sodico, Anti-rust, Sodium nitrite solution, Nitrite, sodium, Diazotizing salts, Nitrite de sodium, Caswell, E 250, NaNO2, Nitrous Acid, Sodium Salt

Chemical Formula: NaNO2

CAS Number: 7632-00-0