Edward Gipstein

Absorption Spectrum of Fluorine Azide

Fluorine azide was first prepared by Haller as a reaction product of hydrogen azide and fluorine. It is described as a greenish-yellow gas at room temperature, liquefying at −82°C when diluted with nitrogen and freezing to a yellow solid at −143°C. Evaporation of this solid generally results in violent explosion. However, gaseous fluorine azide decomposes slowly at room temperature and very rapidly at 100°C without explosion. Difluorodiazene (N2F2) and nitrogen are formed.