4468 of 1908), and by lead azoimide (Hyronimus, Brit.
Amongst endothermic compounds may be noted hydriodic acid, HI, acetylene, C 2 H 2, nitrous oxide, N 2 O, nitric oxide, NO, azoimide, N 3 H, nitrogen trichloride, NC1 3.
Nitrogen combines with hydrogen to form ammonia, NH 3, hydrazine, N 2 H 4, and azoimide, N 3 H (qq.v.); the other known hydrides, N 4 H 4 and N5H5, are salts of azoimide, viz.
Heated in a current of carbon dioxide sodamide yields caustic soda and cyanamide, and with nitrous oxide it gives sodium azoimide; it deflagrates with lead or silver nitrate and explodes with potassium chlorate.
Diazoimino compounds, R N3, may be regarded as derivatives of azoimide; they are formed by the action of ammonia on the diazoperbromides,or by the action of hydroxylamine on the diazonium sulphates (J.
The nitride AgN3, silver azoimide, is also highly explosive.
AZOIMIDE, or Hydra701c Acid, N3h, a compound of nitrogen and hydrogen, first isolated in 1890 by Th.
Grandmougin (Berichte, 1891, 24, p. 2546) obtained azoimide from dinitraniline, C 6 H 3 (NO 2) 2 NH 2j by diazotization and conversion of the diazo compound into the perbromide, (NO 2) 2 C 6 H 3 N 2 Br 3.
The solution is then acidified and distilled, when azoimide passes over.
After the greater portion of the alcohol has distilled off, the solution is acidified with sulphuric acid and the azoimide distilled over.
Ammonium azoimide, N 3 NH 4j may be prepared by boiling diazohippuramide with alcoholic ammonia, until no more ammonia escapes, the following reaction taking place: C,H 5 CO [[Nhch 2 Conh N 2.
Hydrazine azoimide, N 5 H 5, is also known.
Chloroazoimide, C1 N 3, the chloride corresponding to azoimide, was obtained by F.