火炸药学报2017，Vol.40Issue(2)：57-59,64,4.DOI:10.14077/j.issn.1007-7812.2017.02.010
二硝酰胺钾的合成、晶体结构及性能
Synthesis, Crystal Structure and Properties of Potassium Dinitramide
摘要
Abstract
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.关键词
有机化学/含能材料/二硝酰胺钾/KDN/晶体结构/热分解行为/感度Key words
organic chemistry/energetic material/potassium dinitramide/KDN/crystal structure/thermal decomposition behavior/sensitivity分类
军事科技引用本文复制引用
雷晴,卢艳华,何金选..二硝酰胺钾的合成、晶体结构及性能[J].火炸药学报,2017,40(2):57-59,64,4.基金项目
总装备部预先研究项目(No.51328050204) （No.51328050204）
