Sodium nitrite

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Sodium nitrite
Identifiers
CAS number 7632-00-0 YesY
PubChem 24269
ChemSpider 22689 YesY
UNII M0KG633D4F YesY
EC nummer 231-555-9
UN nummer 1500
ChEMBL CHEMBL93268 YesY
RTECS nummer RA1225000
ATC code V03AB08
Jmol-3D images Image 1
Properties
Molecular formula NaNO2
Molar mass 68.9953 g/mol
Appearance white or slichtly yellaeish solid
Density 2.168 g/cm3
Meltin pynt

271 °C, 544 K, 520 °F (decompones)

Solubility in water 84.8 g/100 mL (25 °C)
Solubility soluble in methanol (4.4 g/100 mL)
ethanol
slichtly soluble in diethyl ether (0.3 g/100 mL)
very soluble in ammonia
Acidity (pKa) ~9
Refractive index (nD) 1.65
Structure
Crystal structur Trigonal
Thermochemistry
Std enthalpy o
formation
ΔfHo298
−359 kJ·mol−1[1]
Hazards
MSDS External MSDS
EU Index 007-010-00-4
EU classification Oxidising agent O Toxic T Dangerous for the Environment (Naitur) N
R-phrases R8, R25, R50
S-phrases (S1/2), S45, S61
NFPA 704
NFPA 704.svg
0
3
1
OX
Autoigneetion
temperatur
489 °C
LD50 180 mg/kg (rats, oral)
Related compounds
Ither anions Lithium nitrite
Sodium nitrate
Ither cations Potassium nitrite
Ammonium nitrite
 YesY (verify) (what is: YesY/N?)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
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.