Ammonium nitrate is an extremely insensitive explosive, even more insensitive than the safe explosive C4. An industrial 8# detonator (only 6# is enough to detonate C4) is not enough to detonate ammonium nitrate mixed with sensitizer. Ammonium nitrate is the most difficult nitric acid explosive to detonate. The impact sensitivity is: 50kg hammer, 50cm drop height, 0% explosion. Compared with the 200g hammer of the famous explosive nitroglycerin, with a drop height of 20cm and 100% explosion sensitivity, the insensitivity of ammonium nitrate can be seen. Moreover, once ammonium nitrate is dissolved in water, the detonation sensitivity is greatly reduced, and it is simply impossible for human power to impact and detonate.