Ammonium nitrate is used in vast amounts globally, first and foremost as a component of fertilizers and explosive formulations. This usage necessitates its transportation which, as for most hazardous materials, involves certain risks. For oxidizing materials such as ammonium nitrate, the ultimate consequence of road transportation incidents is usually considered to be fire followed by explosion. Even though the probability in general is low, substantial reduction in its risk is a great gain for public safety. Thus, identifying novel and improving current safety measures for risk reduction, is an important aspect in the field of hazardous materials. Herein, a series of experiments are reported, which demonstrate the fire protection performance of two state-of-the-art intumescent passive fire protection materials on small-scale metal test tubes containing ammonium nitrate. Albeit being initial experiments on laboratory-scale, these results provide a promising starting point for further investigations on the potential of these materials for the fire protection of ammonium nitrate when carried in metal tanks. At its best, a prominent protection of ammonium nitrate from heat exposure was observed, as the temperature was kept well below its boiling point for more than 2.5 h. Successively, it resulted in a complete recovery of the sample material. This was in large contrast to the observed results for the unprotected test tubes, which led to complete decomposition of the sample after 11 min.

硝酸铵在全球范围内被大量使用，首先是作为肥料和炸药配方的成分。这种用法需要其运输，对于大多数危险材料，涉及某些风险。对于硝酸铵等氧化性物质，道路运输事故的最终后果通常被认为是起火后爆炸。尽管总体上概率较低，但大幅降低其风险对公共安全来说是一大利好。因此，确定新的和改进当前安全措施以降低风险是危险材料领域的一个重要方面。在此，报道了一系列实验，展示了两种最先进的膨胀型被动防火材料在含有硝酸铵的小型金属试管上的防火性能。尽管是实验室规模的初步实验，但这些结果为进一步研究这些材料在金属罐中运输时对硝酸铵的防火潜力提供了一个有希望的起点。在最好的情况下，观察到硝酸铵对热暴露的显着保护，因为温度保持远低于其沸点超过 2.5 小时。随后，它导致样品材料的完全回收。这与未受保护的试管的观察结果形成鲜明对比，后者导致样品在 11 分钟后完全分解。尽管是实验室规模的初步实验，但这些结果为进一步研究这些材料在金属罐中运输时对硝酸铵的防火潜力提供了一个有希望的起点。在最好的情况下，观察到硝酸铵对热暴露的显着保护，因为温度保持远低于其沸点超过 2.5 小时。随后，它导致样品材料的完全回收。这与未受保护的试管的观察结果形成鲜明对比，后者导致样品在 11 分钟后完全分解。尽管是实验室规模的初步实验，但这些结果为进一步研究这些材料在金属罐中运输时对硝酸铵的防火潜力提供了一个有希望的起点。在最好的情况下，观察到硝酸铵对热暴露的显着保护，因为温度保持远低于其沸点超过 2.5 小时。随后，它导致样品材料的完全回收。这与未受保护的试管的观察结果形成鲜明对比，后者导致样品在 11 分钟后完全分解。观察到硝酸铵对热暴露的显着保护，因为温度保持远低于其沸点超过 2.5 小时。随后，它导致样品材料的完全回收。这与未受保护的试管的观察结果形成鲜明对比，后者导致样品在 11 分钟后完全分解。观察到硝酸铵对热暴露的显着保护，因为温度保持远低于其沸点超过 2.5 小时。随后，它导致样品材料的完全回收。这与未受保护的试管的观察结果形成鲜明对比，后者导致样品在 11 分钟后完全分解。