SHEET /m/sodium-nitrite · PubChem CID 23668193 · CAS 7632-00-0 · REV 2026.07
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Sodium nitrite from source
NNaO2 · 68.995 g/mol
Nitrous acid, sodium salt · Nitrite, sodium · Erinitrit · Filmerine
chemical compound
CategoryFood & flavor
Fig. 1 · 2D structure RDKit
N(=O)[O-].[Na+]
Where you'll find it
Not yet mapped to everyday foods or products.
The dose makes the poison inferred
A reported rat oral LD50 for Sodium nitrite is 85 mg/kg, the dose lethal to half the animals tested. Scaled by body mass alone:
6.0 g
a median lethal dose scaled to 154 lb (5,950 mg)
“The dose makes the poison” is a cross-species estimate shown as neutral science, not a threshold anyone should act on. Real toxicity depends on the person, not body mass alone.
Toxicity & hazards
Toxicity · LD50
85 mg/kg · moderately toxic · LD50 rat oral from source
The dose lens above scales this to a body weight.
4 more reported values
- 175 mg/kgLD50 · oral · mouse
- 186 mg/kgLD50 · oral · rabbit
- 65 mg/kgLD50 · iv · rat
- 158 mg/kgLD50 · other · mouse
DangerOxidizerToxicIrritantHealth hazardEnvironmentalH272, H301, H319, H330, H341, H361, H362, H370, H371, H373, H400, H410from source