Well, let's put it t
Well, let's put it this way:
-picric acid is toxic; actually quite toxic. But it won't kill you unless you drink/eat it.
-picric acid IS an explosive. It has been used in shells, but it's not THAT sensitive. The door knob story is to scare off the ignorant people. In order to make it explode you need more shock than a standard blasting cap can provide, and that blasting cap alone may be enough to kill you. Still, picric acid readily forms salts with fairly any metal it comes in contact with, salts that are very sensitive to friction, flame and impact. So storing it in solution is a must; keeping it away from metals is also a must.
Concerning the sensitivity, there was some picric acid fire once and the stuff (tones of it) didn't go off; instead it just burned out. During the fire, large steel pieces from the desintegrating warehouse structure kept falling in the puddle of melted burning picric acid hell. Everybody feared a massive blast, but it didn't happen. Now, just put regular fertilizer in the same story and it would have certainly been a huge blast.
If really needed, with a bit of responsability it can be used; there are far more dangerous chems we use every day without even noticing it (caustic soda for instance).
That is not to say that you can take it lightly; it can stain, it has an incredible bitter taste, it's toxic, and it can explode. But it doesn't mean either that while dyeing you fly,instead of dreaming about that huge trout you'll get, you feel cold shivers down your spine thinking "my God, what if it blows up right in my face now?"
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