Originally Posted by
Wildcat
I too am skeptical that the explosion was primarily AN.
It -is- true that AN is very hydroscopic and the 'wetter' it gets the tougher it is to detonate.
It is not true that AN requires an additive to make it an explosive. It does take extra effort to set off AN alone but it can be done and is commonly used for moving earth. Additives will sensitize it. Certain additives will also improve its performance as an explosive.
In general AN is so insensitive, and so efficient as a nitrogen source, it is used just about everywhere as a fertilizer. Its quite safe if you don't heat it up a lot and don't contaminate it. IIRC, after the Oklahoma City bombing, US suppliers had to reformulate commercial AN fertilizer so it can't be detonated.
Putting AN in close proximity to a sustained fire can make the material susceptible to violent decomposition. Since AN is an oxidizer, it can also make a fire difficult to put out, but AN doesn't burn well alone. In several of the industrial explosions involving AN that made history, firefighters were actively fighting the fire up until the explosion.
I expect that the same could happen with some other previously mentioned compounds.
Depends on what you "wet" it with... Let's say, for the sake of argument, it accidentally got some diesel spilled on it...
Last edited by daddyusmaximus; 08-06-20 at 08:42.
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