Sodium nitrate
CAS 7631-99-4NNaO384.995 g/mol
Sodium nitrate is the inorganic nitrate salt of sodium. It has a role as a fertilizer. It is an inorganic sodium salt and an inorganic nitrate salt.
IUPAC: sodium nitrate
PubChem
Physical & Chemical Properties
| Melting Point | 584.2 °F (USCG, 1999) |
| Boiling Point | Decomposes 716 °F (USCG, 1999) |
| Density | 2.26 at 68 °F (USCG, 1999) - Denser than water; will sink |
| Solubility | ...is soluble in liquid ammonia and forms Na NO3.4NH3 below -42 °C. The solubility in anhydrous methanol is 2.8 wt% at 25 °C. |
| pH | Aq soln is neutral |
| Appearance | Sodium nitrate appears as a white crystalline solid. Noncombustible but accelerates the burning of combustible materials. If large quantities are involved in fire or the combustible material is finely divided an explosion may result. May explode under prolonged exposure to heat or fire. Toxic oxides of nitrogen are produced in fires. Used in solid propellants, explosives, fertilizers, and for many other uses. |
Data: PubChem · Last updated: 4/20/2026
GHS Classification
No GHS classification data available.
Classification data is sourced from ECHA.
Regulatory Compliance
TSCA
Listed
note: Status based on EPA TSCA Active Inventory · inventory name: TSCA Chemical Substance Inventory
View sourceGlobal Trade Intelligence
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HS Code(s): 2834
Data: UN Comtrade
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