507. Ammonium Carbamate

Nomenclature

CAS number: 1111-78-0
Carbamic acid ammonium salt (1:1); “anhydride” of ammonium carbonate; ammonium aminoformate.
CH6N2O2; mol wt 78.07.
C 15.38%, H 7.75%, N 35.88%, O 40.99%.
NH2COONH4.

Description and references

Prepd from dry ice and liq ammonia: Brooks, Audrieth, Inorg. Synth. 2, 85 (1946).

Properties

Cryst powder; ammonia odor; gradually loses ammonia in the air changing to ammonium carbonate. Volatilizes at about 60°. Freely sol in water; sol in alcohol.

Use

Ammoniating agent, less vigorous than NH3.