structured H₂N-CN formula : CH₂N₂ & nbsp; molecular weight : 42.04 CAS 420-480-04-2
from dimethyl phthalate Precipitation Cyanide ammonia orthogonal to the elongation of hexagonal crystal, easily absorbing moisture. 45-46 ° C melting point, boiling point of 83 ° C / 0.0667kpa, heating to 122 ° C polymerization into DCD. The relative density of 1.282. At 20 ° C benzene from the dipole 3.8; Constant lower freezing point (water) 26.8-28.4,0-39 ° C heat capacity of 2.29kJ/kg K, 25 ° C heat of formation of 58.8kJ/mol; 25 ° C heat of combustion of -738.6kj/mol; 8.8kj/mol melting heat; 68.7kj/mol thermal evaporation; in different solvents and different temperatures are the solubility is different. Cyanide ammonia dissolved in alcohol, phenol, ammonia, ether and ketones, do not dissolve in cyclohexane. Cyanide solid ammonia Store in cool dry place. Liquid ammonia cyanide preserve the best pH 4, cyanide solution of ammonia and phosphoric acid, sulfuric acid, acetic acid and boric acid together stored in glass containers are pretty stable.
purposes : Cyanide ammonia synthesis mainly for medicine and dyes, it is an important intermediate in organic synthesis. In the pharmaceutical industry on the preparation of the main port for the City of Victoria-methyl piperazine (Guamecycline) and cytosine arabinoside hydrochloride salt.