The effect of various metal chlorides, namely FeCl₃, AlCl₃, CuCl₂, and ZnCl₂, on the thermal decomposition of nitrocellulose (NC) was studied using a synchronous thermal analyzer (STA). An aqueous solution of 10 mass% metal chlorides was added to NC and was then compared with pure NC. The results revealed that FeCl₃ and AlCl₃ promoted notable NC decomposition, but CuCl₂ and ZnCl₂ inhibited decomposition. Therefore, the addition of trivalent metal chlorides can increase the explosion risk in NC. By contrast, divalent metal chlorides can function as inhibitors. In addition, the kinetics of NC and NC mixed with metal chloride were determined. The addition of metal chlorides promoted or inhibited NC decomposition but did not change its reaction mechanism. This study provides crucial information for improving the safety of NC storage, transportation, and use.

使用同步热分析仪 (STA) 研究了各种金属氯化物，即 FeCl ₃、AlCl ₃、CuCl ₂和 ZnCl ₂对硝化纤维素 (NC) 热分解的影响。将 10 质量％金属氯化物的水溶液加入到 NC 中，然后与纯 NC 进行比较。结果表明，FeCl ₃和AlCl ₃促进了显着的NC分解，但CuCl ₂和ZnCl ₂抑制分解。因此，添加三价金属氯化物会增加 NC 的爆炸风险。相比之下，二价金属氯化物可以起到抑制剂的作用。此外，还确定了 NC 和 NC 与金属氯化物混合的动力学。金属氯化物的加入促进或抑制了 NC 的分解，但没有改变其反应机理。本研究为提高 NC 存储、运输和使用的安全性提供了关键信息。