NNaO2
68.995 g/mol
Industrial ChemicalDanger
SODIUM NITRITE
CAS7632-00-0EC231-555-9
Category
Industrial Chemical
Compound Class
Inorganic Salt
Primary Use
chemical intermediate for nitrosation and diazotization
Sodium nitrite is an inorganic compound with the chemical formula NaNO₂, appearing as a white to slightly yellowish crystalline powder that is very soluble in water and hygroscopic. Industrially, it is the most important nitrite salt and is primarily used as a chemical intermediate for nitrosation and diazotization reactions.
chemical intermediate for nitrosationchemical intermediate for diazotization
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Referencestereoisomer of
Sodium nitrite-15N
CAS68378-96-1
research compound
Safety Reference
Danger
H272May intensify fire; oxidizer
H301Toxic if swallowed
H400Very toxic to aquatic life
H319Causes serious eye irritation
H341Suspected of causing genetic defects
H361Suspected of damaging fertility or the unborn child
H362May cause harm to breast-fed children
H370Causes damage to organs
H373May cause damage to organs through prolonged or repeated exposure
H410Very toxic to aquatic life with long lasting effects
H330Fatal if inhaled
H371May cause damage to organs
Regulatory Compliance1
- CN Catalogue of Hazardous ChemicalsCNRegulation
Customs Tariff Classification
The international HS code for SODIUM NITRITE (CAS 7632-00-0) is 2834.10.
HS code (international, 6-digit)
2834.10
EU CN code (8-digit)
2834 10 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
sodium nitrite
InChIKey
LPXPTNMVRIOKMN-UHFFFAOYSA-M
SMILES
N(=O)[O-].[Na+]
Synonyms (46)
- E250
- Sodium nitrite (USP)
- Sodium nitrite, United States Pharmacopeia (USP)
- Anti-rust
- Azotyn sodowy
- Azotyn sodowy [Polish]
- Dusitan sodny
- Dusitan sodny [Czech]
- Erinitrit
- Filmerine
- INS NO.250
- Natrii nitris
- Natrium nitrit
- Natrium nitrit [German]
- Natrum nitrosum
- Nitrite de sodium
- Nitrite de sodium [French]
- Nitrite, sodium
- Nitrito sodico
- Nitrito sodico [Spanish]
- Nitrous acid soda
- Nitrous acid, sodium salt
- SODIUM NITRITE
- SODIUM NITRITE [MART.]
- Sodium Nitrite 1000ppm As N
- Sodium nitrite, granular
- Sodium nitrite, p.a.
- Sodium nitrite, puriss. p.a.
- Synfat 1004
- natrium nitrite
- sodium nitrit
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