Synthesis, Crystal Structure and Properties of Potassium Dinitramide

被引：0
|
作者：
Lei Q. [1 ]
Lu Y.-H. [1 ]
He J.-X. [1 ]
机构：
[1] Institute of Aerospace Chemical Technology, Xiangyang, 441003, Hubei
来源：
Huozhayao Xuebao/Chinese Journal of Explosives and Propellants | 2017年 / 40卷 / 02期
关键词：
Crystal structure; Energetic material; KDN; Organic chemistry; Potassium dinitramide; Sensitivity; Thermal decomposition behavior;
D O I：
10.14077/j.issn.1007-7812.2017.02.010
中图分类号：
学科分类号：
摘要：
Potassium dinitramide (KDN) was synthesized using N-guanylurea dinitramide (GUDN) and KOH as raw materials. Its structure was characterized by elemental analysis and Fourier transform infrared spectroscopy (FT-IR). The single crystal of KDN was cultured and its structure was determined by X-ray single-crystal diffractometer. The thermal decomposition behavior of KDN was investigated by differential scanning calorimeter (DSC) and its sensitivities were tested. The results show that the crystal of KDN belongs to monoclinic system, its space group is P2(1)/n with crystal parameters of a=0.6610(11) nm, b=0.9272 (15) nm, c=0.7194 (12) nm, β=97.568(3) °, V=0.4371(12) nm3; Z=4; Dc=2.236g/cm3; F(0 0 0)= 288.The melting point of KDN is 128 ℃, and its sensitivities are lower than RDX with impact sensitivity of greater than 50cm, friction sensitivity of 0, and electrostatic sensitivity of 142.53mJ, showing that KDN is a kind of dinitramide insensitive energetic material. © 2017, Editorial Board of Journal of Explosives & Propellants. All right reserved.
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页码：57 / 59and64
页数：5907
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