Sodium nitrite

Frae Wikipedia
Lowp tae: navigation, rake
Sodium nitrite
Sodium nitrite
The nitrite anion (space-fillin model)
The sodium cation
Jmol-3D images Image
ChemSpider 22689 YesY
ECHA InfoCard 100.028.687
EC Nummer 231-555-9
E nummer E250 (preservatives)
RTECS nummer RA1225000
UN nummer 1500
Molar mass 68.9953 g/mol
Appearance white or slichtly yellaeish solid
Density 2.168 g/cm3
Meltin pynt 271 °C (520 °F; 544 K)
84.8 g/100 mL (25 °C)
Solubility soluble in methanol (4.4 g/100 mL)
slichtly soluble in diethyl ether (0.3 g/100 mL)
very soluble in ammonia
Acidity (pKa) ~9
Refractive index (nD) 1.65
Crystal structur Trigonal
Std enthalpy o
−359 kJ·mol−1[1]
Safety data sheet External MSDS
EU clessification Oxidising agent O Toxic T Dangerous for the Environment (Naitur) N
R-phrases R8, R25, R50
S-phrases (S1/2), S45, S61
NFPA 704
Flammability code 0: Will nae burn. E.g., watter Health code 3: Short exposur could cause serious temporary or residual injury. E.g., chlorine gas Reactivity code 1: Normally stable, but can acome unstable at elevatit temperaturs an pressurs. E.g., calcium Special hazard OX: Oxidizer. E.g., potassium perchlorateNFPA 704 four-colored diamond
Lethal dose or concentration (LD, LC):
180 mg/kg (rats, oral)
Relatit compoonds
Ither anions
Lithium nitrite
Sodium nitrate
Ither cations
Potassium nitrite
Ammonium nitrite
Except whaur itherwise notit, data are gien for materials in thair staundart state (at 25 °C [77 °F], 100 kPa).
YesY verify (whit is YesYN ?)
Infobox references

Sodium nitrite is the inorganic compoond wi the chemical formula NaNO2. It is a white tae slicht yellaeish crystalline pouder that is very soluble in watter an is hygroscopic. It is a uiseful precursor tae a variety o organic compoonds, such as pharmaceuticals, dyes, an pesticides, but it is probably best kent as a fuid additive tae prevent botulism.

References[eedit | eedit soorce]

  1. Zumdahl, Steven S. (2009). Chemical Principles 6th Ed. Houghton Mifflin Company. p. A23. ISBN 0-618-94690-X.