Ammonium Azide, NH

Guanidinium salts Dicyanodiamide H2N-NH2, CeH NHNHs T osylhydrazine Alkyl azides JVs , Dicyclohexyl-ammonium azide, NH NH2OH... 

Alkyl azides Ns, Dicyclohexyl-ammonium azide, NH NH2OH... 

HN N.NH2 Tetrazene (tetrazone, or 2-tetrazene) H2N.N N.NH2 Isotetrazene (1-tetrazene, diazohydrazene, buzylene) HN N.NH.NH2 Ammonium Azide, NH4.N3 Hydrazine Azide,... 

Octazotriene (octazone) HN N.NH.N N.NH.N NH Many of the derivatives of the above compounds are explosive and they are described separately under corresponding names. Some of the compounds included in these tables (as for instance ammonium azide and hydrazine azide), do not possess the structural formula of real hydronitrogens but they are included for the sake of comparison, because their empirical formulas correspond to the type NnHn.2 Refs 1) L.F. Audrieth B.A. Ogg, TTie Chemistry of Hydrazine , J. Wiley, NY (1951), p 3-6 2) C.C. Clark, Hydrazine , Mathieson... 

A number of investigations have been devoted to the thermal decomposition of hydrazoic acid or to decomposition produced by electric discharge. Thus Rice and Freamo [50] established that its thermal decomposition at 77°K leads to the formation of a blue-coloured sediment. At a higher temperature, 148°K, it changes colour, forming a white substance which has been identified as ammonium azide. They suggested that the blue colour is caused by the presence of the free imino radical NH. 

Ammonium Azide (formerly called Ammonium Trinitride or Ammonium Azoimide), NH N, mw 60.06, N 93-29% col, nonhygr, rhmb plates mp expl 160° (Ref 5), starts to sublime at 133-4°, bp expl above temp limit for slow decompn ca 300°, d 1.346 at 20°, QP-26.0 kcal/... 

Antimony Triazide (formerly called Antimony Trinitride), Sb(N,) mw 247.83, N 50.87% yel solid which exploded on heating. Was obtained by Browne et al using an antimony anode in the electrolysis of a soln of ammonium azide in liq NH, at -67° (Refs 3 5). 

Ammonium Azide Ammonotes. Ammonium azide forms with ammonia addition products a)Monoammonate, NH4N, NH, its existence was established from a study of the system ammonium azide-ammonia (Refs 7 8) b) Diammonate, NH4N, 2NHj, clear, col elongated plates stable at -33°, but incapable of existence at 0° (Ref 7) c)TetTammonate,... 

Ammonium azide is a colorless, crystalline substance. Some of its properties are given in Table 19. No phase transitions are found between 90 and 348 K. Sublimation of ammonium azide begins at 406 K, recondensation of the vapors at 418 K. Ammonium azide vapors decompose, similar to other ammonium salts, to ammonia and HN3 at 418 K (A// = -1-67.7 kJmol ). In the solid state, all ammonium ions are tetrahedrally connected to azide ions via hydrogen bonds with an NH -N distance of 297.5(4) and 296.7(3) pm. ... 

I -epimer was encountered. Condensation of various 1-alkylamino-l-deoxy-D-arabino-hexuloses with ethyl acetoacetate afforded a series of pyrrole derivatives with a D-arabino-hexityl side chain at C-3 [e.g. (52)] and condensation of l-bromo-l-deoxy-D-nZ)o-hexulose with HSC(=NH)C02Et afforded the thiazole (53). Cyclization of D-penicillamine with 2,3,4,5-tetra-O-acetyl-flWe/ijdo-L-arabinose afforded, after f -deacetylation the thiazolidine (54) as a mixture of two diastereoisomers. The tetrazoles (55) are prepared by condensation of the appropriate benzoylated aldononitrile with ammonium azide, followed by 0-debenzoylation... 

C,HrXN-N(C,H,)2 N-Amino phenyl-aziridine Girard reagents Tosylhydrazine HN NH Alkyl azides Picryl azide Cyanogen azide Ng, Dicyclohexyl-ammonium azide Guanidinium azides Azidinium salts HNs NH2OH... 

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