Chemical properties Physical properties Preparation
ChemicalBook > CAS DataBase List > ammonium azide

ammonium azide

Chemical properties Physical properties Preparation
Product Name
ammonium azide
CAS No.
12164-94-2
Chemical Name
ammonium azide
Synonyms
ammonium azide
CBNumber
CB2919935
Molecular Formula
H4N4
Formula Weight
60.05856
MOL File
12164-94-2.mol
More
Less

ammonium azide Property

Melting point:
160℃ [CIC73]
Boiling point:
explodes at 134℃ [CIC73]
Density 
1.346
form 
orthorhombic crystals
color 
Colorless plates
Water Solubility 
g NH4N3/100g H2O: 16.0 (0°C), 25.3 (20°C), 37.1 (40°C) [LAN05]
More
Less

Safety

RIDADR 
0473
HazardClass 
1.1A
More
Less

Hazard and Precautionary Statements (GHS)

More
Less

ammonium azide Chemical Properties,Usage,Production

Chemical properties

Ammonium azide is an explosive chemical compound with the formula NH4N3.It is one of the few oxygen-free explosive materials that can be handled (relatively) safely.
Ammonium azide will detonate to release nitrogen and hydrogen gases. NH4N3 → 2 N2 + 2 H2
Traces of ammonia are also produced.

Physical properties

Ammonium azide is a non-hygroscopic colorless odorless crystalline solid. It melts at 160 °C and decomposes at 400 °C. Ammonium azide is soluble in water. It also is soluble in ammonia. It is also easily soluble in ethanol, glycerol, methanol, pyridine, sparingly soluble in allyl alcohol, butanol and isobutanol and insoluble in acetone, aniline, benzaldehyde, benzene, carbon disulfide, chlorobenzene, chloroform, diethyl ether, ethyl acetate, isoamyl alcohol, methyl acetate, methyl ethyl ketone, nitrobenzene, tetrachloroethane, toluene and xylene.

Preparation

Ammonium azide can be made by bubbling anhydrous ammonia in a ether solution of HN3. Since ammonium azide is almost insoluble in ether, it will precipitate.The precipitate is filtered and vacuum dried. Water traces are removed using phosphorus pentoxide in a desiccator.
Heating a mixture of sodium azide with ammonium nitrate in a stream of dry air in a tube at 190 °C for 30 min will yield ammonium azide. The yield of the process is 93%. Ammonium sulfate can also be used instead of nitrate.
http://www.sciencemadness.org

Chemical Properties

orthorhombic, a=0.893 nm, b=0.864 nm, c=0.380 nm [CIC73]

Safety Profile

Poison by inhalation and ingestion. See also AZIDES. Moderately flammable. Unstable. Explosion hazard upon rapid heating.

ammonium azide Preparation Products And Raw materials

Raw materials

Preparation Products

More
Less

ammonium azide Suppliers