Home Categories Hydrazoic acid
LN-760230

Hydrazoic acid , 99% , 7782-79-8

CAS NO.:7782-79-8

Empirical Formula: HN3

Molecular Weight: 43.028

MDL number:

Update time: 2023-04-23

PRODUCT Properties

Melting point: -80°
Boiling point: bp 37°
Density  1.092
solubility  soluble in H2O
pka 4.72(at 25℃)
form  colorless liquid
color  colorless liquid; explodes, explosive
PH pKa1= 4.43(25℃)
Water Solubility  very soluble H2O [HAW93]
Exposure limits Ceiling 0.1 ppm vapor (ACGIH).
Stability: Unstable. Violently explosive in the concentrated or pure states. Readily forms explosive compounds with heavy metals. This is a dangerous and hard to handle substance which must not be prepared or handled by non-experts.
EPA Substance Registry System Hydrazoic acid (7782-79-8)

Description and Uses

Hydrazoic acid or hydrogen azide is a dangerous explosion risk when shocked or heated. It is the gas-forming agent in many air bag systems in automobiles and escape chutes in airplanes.

Industrially in preparation of heavy metal azides for shell detonators.

Safety

RIDADR  0473
HazardClass  1.1A
Hazardous Substances Data 7782-79-8(Hazardous Substances Data)
Toxicity LD50 in mice (mg/kg): 21.5 i.p. (Graham)

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