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7632-00-0 - Sodium nitrite, 98% - A18668 - Alfa Aesar

A18668 Sodium nitrite, 98%

Codice CAS
7632-00-0
Sinonimi

Dimensioni Prezzo ($) Quantità Disponibilità
1000g 50,25
5000g 146,26
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Sodium nitrite, 98%

MDL
MFCD00011118
EINECS
231-555-9

Proprietà chimiche

Formula
NNaO2
Peso formula
69.00
Punto di fusione
271° dec.
Densità
2.17
Sensibilità
Hygroscopic
Solubilità
Soluble in water, methanol, ethanol, ammonia, nitric acid. Slightly soluble diethyl ether.

Applicazioni

Sodium nitrite is used in many industrial applications viz. in meat curing, coloring and preserving. It is used as a reagent in analytical chemistry, an antidote in cyanide poisoning, 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.

Note

Decomposes above 320°. Hygroscopic. Incompatible with reducing agents, strong oxidizing agents, organics, finely powdered metals.

Letteratura

Cheng, D.; Yuan, K.; Xu, X.; Yan, J. The oxidative coupling of benzylic compounds catalyzed by 2, 3-dichloro-5, 6-dicyano-benzoquinone and sodium nitrite using molecular oxygen as a co-oxidant. Tetrahedron Lett. 2015, 56 (13), 1641-1644.

Kroflic?, A.; Grilc, M.; Grgic?, I. Unraveling Pathways of Guaiacol Nitration in Atmospheric Waters: Nitrite, A Source of Reactive Nitronium Ion in the Atmosphere. Environ. Sci. Technol. 2015, 49 (15), 9150-9158.

Rischio GHS e dichiarazioni precauzionali

Dichiarazioni di rischio (UE): H301-H272-H400

Toxic if swallowed. May intensify fire; oxidizer. Very toxic to aquatic life.

Dichiarazioni precauzionali: P221-P210-P220-P273-P280-P264-P301+P310-P321-P405-P501a

Take any precaution to avoid mixing with combustibles. Keep away from heat/sparks/open flames/hot surfaces. - No smoking. Keep/Store away from clothing/combustible materials. Avoid release to the environment. Wear protective gloves/protective clothing/eye protection/face protection. Wash thoroughly after handling. IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. Specific treatment (see label). Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Altri riferimenti

Merck
14,8648
Classe di rischio
5.1
Gruppo di imballaggio
III
Codice tariffe armonizzato
2834.10
TSCA
Yes
RTECS
RA1225000

Raccomandato

  • A19890

    Sodium sulfate, anhydrous, 99%
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    Isopropyl acetate, 99+%
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    Hydrochloric acid, 36% w/w aq. soln.
  • 11414

    Silver nitrate, ACS, 99.9+% (metals basis)
  • 33260

    Nitric acid, ACS, 68.0-70.0%

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