A New Energetic Salt Semicarbazide 5‐Dinitromethyltetrazolate: A Promising Explosive Alternative. Issue 6 (20th March 2017)

• Record Type: Journal Article
• Authors: Zhang, Zhi Bin; Xu, Cai Xia; Yin, Xin; Zhang, Jian Guo
• Is Part Of: Propellants, explosives, pyrotechnics. Volume 42:Issue 6(2017)
• Page Start: 635
• Page End: 642
• Publication Date: 2017-03-20
• Subjects: 5-Dinitromethyltetrazolate -- Energetic salt -- Preparation -- Crystal structure -- Energetic properties; Propellants -- Periodicals; Explosives -- Periodicals; 662.2
• DOI: 10.1002/prep.201600233
• Languages: English
• ISSNs: 0721-3115

Abstract

Abstract: The design and synthesis of new environmentally friendly energetic materials with excellent performance and reliable safety have received considerable attention. A new energetic salt of semicarbazide 5‐dinitromethyltetrazolate (SCZ⋅ DNMZ) was synthesized by using semicarbazide and 5‐dinitromethyltetrazolate (DNMZ) as raw materials, and fully characterized by using elemental analysis, FT‐IR spectroscopy, 1 H, 13 C, and 15 N nmR and mass spectrometry. The monocrystal of the salt was obtained and the structure was determined by X‐ray single‐crystal diffractometer. Results show that it belongs to monoclinic space group P 21 / c with a high density of 1.867 g cm −3 . The thermal decomposition behavior was tested by DSC and TG‐DTG technologies; the non‐isothermal kinetic parameters for the salt were calculated. The enthalpy of formation for the salt is directly dependent on the combustion heats data with a result of 341.5 kJ mol −1, which is about three times higher than that of RDX. The detonation pressure ( P ) and detonation velocitiy ( D ) of the salt were determined as 8931 m s −1 and 36.2 GPa, which are also higher than that of RDX. The impact sensitivity was tested with a result of 10.8 J. We can draw a safe conclusion that the salt has provided a promising future by using as a kind of explosive alternative. The discovery also contributes significantly to the expansion and application of the N‐heterocyclic compounds applied as energetic materials. Abstract :