SODIUM AZIDE

Sodium Azide, NaN3, mol wt 65.02, CAS Number 26628-22-8, is a colorless, odorless, crystalline solid (salt-like) or solution. It is soluble in water or liquid ammonia, slightly soluble in alcohols, and insoluble in ether.

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Detailed Description for SODIUM AZIDE

Sodium Azide, NaN3, mol wt 65.02, CAS Number 26628-22-8, is a colorless, odorless, crystalline solid (salt-like) or solution. It is soluble in water or liquid ammonia, slightly soluble in alcohols, and insoluble in ether. It is highly toxic and presents a severe explosion risk when shocked or heated. When heated from 275 to 330°C in dry air, the solid crystals decompose with the evolution of nitrogen gas, leaving a residue of sodium oxide. Sodium hydroxide then forms in moist air. Synonyms and Trade Names are Azide, Azium, and Sodium salt of hydrazoic acid.

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE white power
MELTING POINT

275 C

BOILING POINT Decomposes
SPECIFIC GRAVITY 1.845
SOLUBILITY IN WATER Soluble
pH  
VAPOR DENSITY 2.2

AUTOIGNITION

 

NFPA RATINGS

Health: 3 Flammability: 1 Reactivity: 3

REFRACTIVE INDEX

 

FLASH POINT  
STABILITY Stable under ordinary conditions

 

Sodium azide is a crystals; soluble in water and liquid ammonia; decomposes at 300C. Sodium azide rapidly explode and release nitrogen gas by impact, used as a propellant of automotive safety bag (inflating). Sodium Azide is used in the preparation of hydrazoic acid ((HN3), lead azide, explosives. Sodium azide is a good nitrogen liberating agent. It is used in organic synthesis including pharmaceuticals (such as Alfentanil; Azosemid; Broperamol;). It is used as a soil sterilizing agent, fungicide, and herbicide. Sodium azide is widely used as the propellant in airbags. Sodium azide is useful in the preparation of Agricultural Chemical (Insecticide, Fungicide, bactericide, wood preservative, Herbicide). In biochemistry, it inhibits cytochrome oxidase by binding irreversibly to the heme cofactor in a process similar to the action of carbon monoxide. it is an enzyme inhibitor and nematocide. It is a useful indicator and probe reagent. It is a cardiovascular agent and vasodilator agent.


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