potassium nitrite
CAS 7758-09-0 · KNO2
Hazard classDanger — Oxidiser, Toxic, Environmental hazard
PictogramsOxidiserToxicEnvironmental hazard
H-statements- H272 May intensify fire; oxidiser
- H301 Toxic if swallowed
- H400 Very toxic to aquatic life
Common uses (US EPA CDR)Corrosion inhibitor
SynonymsPOTASSIUM NITRITE · Nitrous acid, potassium salt · Potassium nitrite (1:1) · Nitrous acid potassium salt (1:1) · INS NO.249 · 794654G42L · INS-249 · E-249
Molecular weight85.104 g/mol
Data sourceHarmonised classification ECHA — EU CLP Annex VILegally binding EU classification adopted by ECHA under CLP Annex VI — the highest-confidence GHS source.
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