Alfa Aesar Sodium nitrite, ACS, 97% min
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Sodium nitrite, ACS, 97% min
MDL
MFCD00011118
EINECS
231-555-9
Chemical Properties
Formula
NaNO2
Formula Weight
69.00
Form
Granular
Melting point
271°
Density
2.17
Sensitivity
Hygroscopic
Solubility
Soluble in water, methanol, ethanol, ammonia and nitric acid. Slightly soluble diethyl ether.
Grade Specifications
Maximum level of impurities: Insoluble matter 0.01%, Cl 0.005%, SO4 0.01%, Ca 0.01%, Heavy Metals (as Pb) 0.001%, Fe 0.001%, K 0.005%
Applications
Sodium nitrite is used in many industrial applications like meat curing, coloring and preserving. It is used as a reagent in analytical chemistry, as an antidote in cyanide poisoning, as an electrolyte in electrochemical grinding, as a cooling solution in closed loop systems and as an additive in industrial greases. It finds application as a corrosion inhibitor as well as in the rubber industry. In metallurgy, it is used for phosphatizing and detinning. It acts as a precursor to diazo dyes, nitroso compounds and various organic compounds like pharmaceuticals. As a food additive, it is used to prevent botulism.
Notes
Decomposes above 320°.Hygroscopic. Incompatible with reducing agents, strong oxidizing agents and finely powdered metals.