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Salts and minerals

Sodium nitrite vs sodium nitrate

Sodium nitrite (NNaO2, CAS 7632-00-0) and sodium nitrate (NNaO3, CAS 7631-99-4) are both listed under nitrates and nitrites.

Sodium nitrite has a molar mass of 69.00 g/mol, sodium nitrate 84.99 g/mol.

Measured boiling points are 320 °C for sodium nitrite and 380 °C for sodium nitrate.

Both carry the GHS signal word Danger.

On CompoundList, 362 suppliers list sodium nitrite and 378 suppliers list sodium nitrate.

Data last updated 7 October 2026

Sodium nitrite and sodium nitrate compared side by side
Sodium nitrite chemical structure, NNaO2, CAS 7632-00-0
Sodium nitrite
Sodium nitrate chemical structure, NNaO3, CAS 7631-99-4
Sodium nitrate
Identity
Name in our databaseSodium nitriteSodium nitrate
CAS number7632-00-07631-99-4
Molecular formulaNNaO2NNaO3
Molar mass69.00 g/mol84.99 g/mol
IUPAC namesodium nitritesodium nitrate
EC number231-555-9231-554-3
Physical properties
AppearanceWhite, orthorhombic crystalsColorless, trigonal or rhombohedron crystals
Melting point271 °C308 °C
Boiling point320 °C380 °C
Density2.2 g/cm³2.3 g/cm³
SolubilitySol in water, moderately sol in methanol, sparingly soluble in diethyl ether91.2 g/100g water at 25 °C
LogP (octanol/water)Computed from the structure-2.75-3.24
Safety (GHS)
Signal wordDangerDanger
Pictograms
GHS03: Oxidiser
GHS06: Acute toxicity (severe)
GHS09: Hazardous to the environment
GHS03: Oxidiser
GHS07: Harmful or irritant
Hazard statements
  • H272 May intensify fire, oxidiser.
  • H301 Toxic if swallowed.
  • H400 Very toxic to aquatic life.
  • H272 May intensify fire, oxidiser.
  • H302 Harmful if swallowed.
  • H319 Causes serious eye irritation.
UN numberUN 1500UN 1498
Uses and classification
Uses and functions
  • Corrosion inhibitors
  • Preservatives
  • Antioxidants
  • Rebar corrosion inhibitors
  • Additive
  • Anti-anaemic agent
  • Skin conditioning agents
  • Fertilizers and micronutrients
  • Preservatives
  • Agrochemical
  • Anti-asthmatic agent
  • Cardiovascular drug
CategoryInorganic chemicals › Nitrates and nitritesInorganic chemicals › Nitrates and nitrites
HS code283410Nitrites310250Sodium nitrate
Market on CompoundList
Suppliers362 suppliers378 suppliers
Supplier countries43 countries, most in United States, India, China54 countries, most in India, United States, China
Price rangeOnly prices set by suppliers who manage their own profilePrice on requestPrice on request

Measured and computed values as shown on each chemical page, plus live listings on CompoundList. Details may have changed, please confirm them with the supplier. Safety data is a summary, not an SDS.

Sodium nitrite
Sodium nitrate

More comparisons

Other common chemical pairs, compared the same way.