DAAF

     DAAF, an acronym for diaminoazoxyfurazan, is an insensitive, high density, high explosive compound. Other names for this explosive include 3,3'-diamino-4,4'-azoxyfurazan and DAAOF. Since the first synthesis of diaminofurazans in 1968 much work has been done to prepare other oxidized versions. DAAF was first synthesized in 1981 by the Soviets as part of this research. There are a handful of explosive diaminofurazans including DAAzF, DNAzF, ANAF, DNHzF, DAHzF, and of course DAAF itself. Of these DAAF seems to be quite promising for a variety of military high explosive formulations. The combination of being both thermally and shock insensitive as well as having a high detonation velocity makes DAAF a very intriguing explosive.

CHEMICALS	APPARATUS
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     Into a 500-mL round-bottomed flask filled with 100.0 g of 30% hydrogen peroxide cooled to 18 C, slowly add 55 g of 98% sulfuric acid, with stirring, over a 10 minute period. Add 10.0 g of 3,4-diaminofurazan and stir the mixture for 24 hours. The mixture should turn orange indicating the presence of DAAF. Dilute the mixture with excess water to lower the acid concentration and filter to collect the orange crystals of DAAF. Wash the crystals thoroughly with water and dry them in the open air. Final yield is about 9.3 g or 88%. The DAAF thus obtained can be purified by dissolving in a minimum volume of room temperature DMSO (about 22 mL) and adding 45 mL of water, with stirring, over a 5 minute period. The precipitated crystals are filtered to collect them, washed with water, and dried in the open air.

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