摘要
为获得高产率的叠氮化铵,并缩短反应时间以及保证实验安全性,提出以叠氮化钡和硫酸铵为原料,N,N-二甲基甲酰胺作为催化剂制备叠氮化铵的新方法。通过测定叠氮化铵在水中溶解性随温度的变化规律,并利用该特性以及硫酸钡在水中的不溶特点从反应体系中提取高纯度叠氮化铵产物。采用缓慢降温法培养叠氮化铵晶体,通过测定叠氮化铵晶体的分子结构以及晶胞堆积结构表征了产物。同时,对制备工艺进行优化,获得了最佳反应温度为85℃,反应时间为15min。
To obtain high productive rate of ammonium azide,and shorten the reaction time,as well as ensure the safety of experiment,a new method for the preparation of ammonium azide using N,N-dimethylformamide as catalyzer,and barium azide and ammonium sulphate as raw materials,was described.The solubility of ammonium azide in water was measured as a function of temperature,and the high purity azide product was extracted from the reaction system,using this characteristic and the incompatibility of barium sulfate in water.Ammonium azide crystals were cultured by slow cooling,and the product was characterized by measuring the molecular structure and cell stacking structure of ammonium azide crystals.Meanwhile,the preparation process was optimized,which obtain the best reaction temperature of 85℃and reaction time of 15min.
作者
赵帅
刘玉存
荆苏明
李欣
王国栋
申清芳
ZHAO Shuai;LIU Yu-cun;JING Su-ming;LI Xin;WANG Guo-dong;SHEN Qing-fang(School of Environment and Safety Engineering,North University of China,Taiyuan,030051;Shaanxi Applied Physics and Chemistry Research Institute,Xi’an,710065;Army Engineering University;Shijiazhuang,050003;The 210th Institute of the Sixth Academy of CASIC,Xi’an,710065)
出处
《火工品》
CAS
CSCD
北大核心
2018年第5期33-36,共4页
Initiators & Pyrotechnics
基金
国家自然科学基金委员会和中国工程物理研究院联合基金(NO.U1330135)
关键词
叠氮化铵
溶解度
晶体培养
晶胞结构
产气药
Ammonium azide
Solubility
Crystal culture
Cell structure
Gas generator
