Potassium nitrite

Molar Mass: 85.11 g/mol

Chemical Formula: KNO₂

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Catalogue Number105067
Product Information
CAS number7758-09-0
EC index number007-011-00-X
EC number231-832-4
Hill FormulaKNO₂
Molar Mass85.11 g/mol
HS Code2834 10 00
Quality LevelMQ300
Physicochemical Information
Density1.92 g/cm3 (20 °C)
Melting Point407 °C
pH value7 – 10 (50 g/l, H₂O, 20 °C)
Bulk density980 kg/m3
Solubility2810 g/l
Safety Information according to GHS
Hazard Pictogram(s)Hazard Pictogram(s)Hazard Pictogram(s)
Hazard Pictogram(s)Hazard Pictogram(s)
Hazard Pictogram(s)Hazard Pictogram(s)
Hazard Statement(s)H272: May intensify fire; oxidizer.
H301: Toxic if swallowed.
H400: Very toxic to aquatic life.
Precautionary Statement(s)P210: Keep away from heat/sparks/open flames/hot surfaces. No smoking.
P221: Take any precaution to avoid mixing with combustibles.
P273: Avoid release to the environment.
P308 + P310: IF exposed or concerned: immediately call a POISON CENTER or doctor/ physician.
Signal WordDanger
Storage class5.1B Oxidizing hazardous materials
WGKWGK 2 obviously hazardous to water
Inorganic peroxides and oxidants as well as bromine and iodine should be rendered harmless by reduction with acidic sodium thiosulfate solution (Cat. No. 106513); container D or E. Slightly soluble oxidants should be collected separately in container E or I.
Safety Information
Hazard SymbolsHazard SymbolsHazard SymbolsToxic
Hazard SymbolsHazard SymbolsOxidising
Hazard SymbolsHazard SymbolsDangerous for the environment
Categories of dangeroxidizing, toxic, dangerous for the environment
R PhraseR 8-25-50
Contact with combustible material may cause fire.Toxic if swallowed.Very toxic to aquatic organisms.
S PhraseS 45-61
In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).Avoid release to the environment. Refer to special instructions/ Safety data sheets.
Storage Information
StorageStore at +5°C to +30°C.

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