4,6-二硝基-7-羟基苯并氧化呋咱钠的合成和性能  

Synthesis and Characterization of 4,6-Dinitro-7-hydroxybenzofuroxan Sodium Salt

作　　者：梁坤[1] 刘玉存[1] 

机构地区：[1]中北大学化工与环境学院,山西太原030051

出　　处：《含能材料》2015年第5期433-437,共5页Chinese Journal of Energetic Materials

基　　金：国家自然联合基金资助(U1330135)

摘　　要：以间溴苯甲醚等为原料,经硝化、取代、环化得到4,6-二硝基-7-羟基苯并氧化呋咱钠(NaDNP),总收率45.6%。采用高效液相色谱、Na元素分析、视频显微镜、核磁共振(1 H NMR、13 C NMR)、傅里叶红外(FT-IR)光谱对其纯度、形貌、结构进行了表征。用差示扫描量热法(DSC)、5s延滞期爆发点研究了其热行为。用撞击、火焰、热丝、静电火花火感度研究了其感度性能。结果表明:升温速率为20℃·min-1时NaDNP的放热峰温度为283.11℃,5s延滞期爆发点300.3℃,显示NaDNP耐热性较好。撞击感度H50为37.4cm,火焰感度H50为18.5cm,热丝感度E50为1.278 mJ,静电火花感度E50为4.3 mJ,比斯蒂芬酸铅(LTNR)钝感。NaDNP可用作起爆药中间体。Dinitro-7-hydroxybenzofuroxan sodium salt（NaDNP）was synthesized via nitration, substitution and annulation using 3-bromoanisole, etc. as materials in yield of 45.6%. Its purity, morphology and structure were confirmed by high performance liquid chromatography, Na elemental analysis ,video microscope, 1H NMR, 13C NMR, FT-IR spectra. Its thermal behavior was studied by DSC and 5 s delay time deflagration point. Its sensitivity properties was studied by impact, flame, hot wire and electrostatic spark sensitivity. Results show that the thermal decomposition peak temperature of NaDNP at a heating rate of 20 ℃·min-1 is 283.11 ℃ and 5 s delay time deflagration point is 300.3 ℃,revealing that NaDNP has good heat resistance. Its impact sensitivity H50 is 37.4 cm, flame sensitivity H50 18.5 cm, hot wire sensitivity E50 1.278 mJ, electrostatic spark sensitivity E50 4.3 mJ, which is more insensitive than lead 2,4,6-trinitroresorcinate （LTNR）. NaDNP can be used as an intermediate of primary explosive.

关 键 词：苯并氧化呋咱 合成 性能 

分 类 号：TQ560.1[化学工程—炸药化工]