- 3,6,7-Triamino-[1,2,4]triazolo[4,3-b][1,2,4]triazole: A non-toxic, high-performance energetic building block with excellent stability
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A novel strategy for the design of energetic materials that uses fused amino-substituted triazoles as energetic building blocks is presented. The 3,6,7-triamino-7H-[1,2,4]triazolo[4,3-b][1,2,4]triazolium (TATOT) motif can be incorporated into many ionic, nitrogen-rich materials to form salts with advantages such as remarkably high stability towards physical or mechanical stimuli, excellent calculated detonation velocity, and toxicity low enough to qualify them as "green explosives". Neutral TATOT can be synthesized in a convenient and inexpensive two-step protocol in high yield. To demonstrate the superior properties of TATOT, 13 ionic derivatives were synthesized and their chemical- and physicochemical properties (e.g., sensitivities towards impact, friction and electrostatic discharge) were investigated extensively. Low toxicity was demonstrated for neutral TATOT and its nitrate salt. Both are insensitive towards impact and friction and the nitrate salt combines outstanding thermal stability (decomposition temperature=280°C) with promising calculated energetic values. Triaminotriazolotriazolium (TATOT) nitrate (see figure) can be synthesized safely by a two-step protocol. TATOT shows no aquatic toxicity, excellent stability towards thermal and physical stimuli, as well as good energetic performance. The TATOT cation is a "green", inexpensive energetic building block and a promising alternative to currently used nitrogen-rich cations, such as hydrazinium, hydroxylammonium, or guanidinium cations.
- Klap?tke, Thomas M.,Schmid, Philipp C.,Schnell, Simon,Stierstorfer, J?rg
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- Synthesis method of triaminoguanidinium nitrate
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The invention relates to a synthesis method of triaminoguanidinium nitrate. The defects of foreign literature report technological approaches are overcome, low-price industrial-grade guanidine nitrate and hydrazine hydrate are used as raw materials, deionized water is used as solvent, nitric acid is used as a catalyst, and triaminoguanidinium nitrate is synthesized through a two-step reaction method. By means of the method, the synthesis time is short, raw materials are low in price, can be easily obtained and are high in utilization rate, the synthesis route is safe, the post-processing method is simple, the synthesized target compound product is high in yield and purity, and byproducts can be recycled. Triaminoguanidinium nitrate synthesized through the method is mainly used for clean type gas generator charging, missiler roll control, start of turbopumps used for servo mechanisms, emergent starters of jet aircrafts, automobile air bags and the like.
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Paragraph 0021; 0022; 0023; 0024
(2016/10/08)
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- Triaminoguanidine nitrate synthetic method applicable to industrial production
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The invention relates to a synthetic method for triaminoguanidine nitrate. The synthetic method overcomes disadvantages of technologies reported in foreign literature and synthesizes triaminoguanidine nitrate by using a catalytic substitution method with cheap industrial-grade guanidine nitrate and hydrazine hydrate as raw materials, water as a solvent and nitric acid as a catalyst. With the method, synthesis time is short; raw material are cheap and easily available, and the utilization rate of the raw materials is high; a synthesis approach is safe; a post-treatment approach is simple; the synthesized triaminoguanidine nitrate has high yield and high purity; by-products can be recycled; and thus, the synthetic method is applicable to industrial production.
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Paragraph 0028; 0029; 0030; 0031; 0032; 0033
(2016/10/07)
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