What effect does moisture absorption have on explosives?

Moisture absorption decreases the effectiveness of explosives. When explosives absorb moisture, it can lead to a reduction in their sensitivity and detonation velocity. Many explosives are designed to function optimally when they maintain specific physical and chemical properties. The presence of moisture can alter these properties, leading to a variety of issues such as decreased reliability in initiation and a potential reduction in the energy output of the explosion.

For instance, if water seeps into an explosive material, it could create a barrier that affects the critical chain reaction needed for detonation, resulting in a less efficient explosion or even failure to detonate. Additionally, excessive moisture can cause physical degradation of the explosive material, affecting its structural integrity and leading to hazards during handling and storage.