苯并三呋咱氧化物中主要杂质对其热安定性的影响

Influnce of impurity on thermal stability of benzotrifuroxan

根据苯并三呋咱氧化物 (BTF)中主要杂质的种类 ,分别选择了三叠氮三硝基苯 (TNTAB)、三氯三硝基苯(TCTNB)和叠氮化钠 (NaN3)作为杂质研究对象 ,采用机械混合的方法制备了一系列不同配比的BTF混合物 ,再通过差热 (DTA)、差示扫描量热 (DSC)、真空安定性试验 (VST)、布氏压力法、热失重、5s爆发点等热分析方法进行测试 ,结果表明TCTNB和NaN3对BTF热安定性影响较小 。

TNTAB,TCTNB and NaN 3 were chosen as subjects investigated based on main impurities in benzotrifuroxan.Various BTF mixtures were prepared by mechanical blending,and then measured by VST,DTA and DSC.The results showed that TNTAB and NaN 3 have little influence on thermal stability of BTF,while TNTAB is a major factor of thermal stability of BTF.