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Sodium nitrite Structure

Sodium nitrite

Chemical Properties

Melting point 271 °C (lit.)
Boiling point 320 °C
Density  2.17g/cm3
storage temp.  2-8°C
solubility  aqueous acid: 1 - 2μl acetic acid per ml H2Osoluble
form  powder
color  White or colorless
Specific Gravity 2.168
Odor Odorless
PH 9 (100g/l, H2O, 20℃)
PH Range 9
Oxidising Properties The substance or mixture is classified as oxidizing with the subcategory 3
Water Solubility  820 g/L (20 ºC)
Sensitive  Hygroscopic
Merck  14,8648
Stability Stable. Incompatible with reducing agents, strong oxidizing agents, organics and other flammable materials, finely powdered metals. Contact with combustible material may lead to fire. Hygroscopic.
InChIKey LPXPTNMVRIOKMN-UHFFFAOYSA-M
CAS DataBase Reference 7632-00-0(CAS DataBase Reference)
FDA 21 CFR 172.175; 172.177; 573.700; 175.105; 176.170; 176.180; 177.1210; 177.2600; 178.3570; 178.3910; 250.102
Substances Added to Food (formerly EAFUS) SODIUM NITRITE
EWG's Food Scores 2-4
FDA UNII M0KG633D4F
ATC code V03AB08
EPA Substance Registry System Sodium nitrite (7632-00-0)

Safety

Symbol(GHS)
Signal wordDanger
Hazard statements H272-H301-H319-H400
Precautionary statements P210-P220-P264-P273-P301+P310-P305+P351+P338
Hazard Codes  O,T,N,Xn
Risk Statements  8-25-50-22-36/38
Safety Statements  45-61-36-26
RIDADR  UN 3219 5.1/PG 3
WGK Germany  3
RTECS  RA1225000
10
Autoignition Temperature 914 °F
TSCA  Yes
HazardClass  5.1
PackingGroup  III
HS Code  28341000
Hazardous Substances Data 7632-00-0(Hazardous Substances Data)
Toxicity LD50 orally in rats: 180 mg/kg (Smyth)
NFPA 704:
0
3 1
OX

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