Publication Date:
2012-04-27
Description:
The oxidation of the 5-nitrotetrazolate anion to its 2-oxide (NTX) by Oxone ® (2KHSO 5 · KHSO 4 · K 2 SO 4 ) gives synthetic access to a new class of oxidizing coloring agents for pyrotechnical formulations. via aqueous ion metathesis reactions starting from the ammonium salt alkaline (Na, K, Rb, Cs) and alkaline earth metal salts (Ca, Sr, Ba) were prepared and characterized by 1 H, 13 C NMR, mass, Raman, and IR spectroscopy, elemental analysis and, where possible, by X-ray diffraction (Na, K, Rb, Cs, Ba). The energetic properties were characterized with differential scanning calorimetry (DSC), impact and friction BAM tests and electrical spark sensitivity testing. 2 N -oxidation of the 5-nitrotetrazolate anion is shown to effect positive oxygen balances ranging from 3.0–4.7 % and general improvement of safety properties under simultaneous reduction of desensitizing molar hydration water content in comparison to the non-oxidized 5-nitrotetrazolate salts.
Print ISSN:
0044-2313
Electronic ISSN:
1521-3749
Topics:
Chemistry and Pharmacology
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