Pentanitroaniline (Forbidden explosives?)

[HNB-9340]

I don't understand why Pentanitroaniline (PNA ) is a "forbidden explosive " ? Because it's very toxic or very sensitive or easy decompose in the room temperature ?
On Wikipedia , I only get some information about it :
Pentanitroaniline
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Chemical structure of pentanitroanilinePentanitroaniline is an explosive organic compound.

Pentanitroaniline can be reacted with ammonia in benzene, dichloromethane or another similar solvent to produce triaminotrinitrobenzene (TATB), a useful explosive.

Pentanitroaniline is labeled by the Department of Transportation (DoT) as "forbidden explosive" that is too dangerous to transport over public thoroughfares or by air.


[edit] External links
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Is Pentanitroaniline a high exlosive (secondary/primary ) ? How is the velocity (m/s) of it ?
http://en.wikipedia.org/wiki/Image:Pentanitroaniline.png

[Charles Owlen Picket]

~-=Do you have any idea what a forbidden explosive is?=-~

This would be a very good time for you to do a search for "forbidden explosive" in quotes with no comma and address that query to the use of explosives in the mining industry.
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I just had a sudden change of heart after posting this as English may not be your first language or you may have phrased your question in a manner that was not clear. so....
Why is ANY explosive forbidden? Think of a classical forbidden explosive....What makes it so? You will have the answer to that question very soon.

[plutobound]

#1 on google search for ‘forbidden explosive’ is a listing of 49CFR section 173.54 (the applicable regulation)

#2 on google search http://safety.science.tamu.edu/forbidden.html

Forbidden Explosives
Certain materials are considered too dangerous to transport over public thoroughfares or by air. These materials are labeled by the Department of Transportation (DOT) as "forbidden explosives". DOT has classified the following types of materials as "forbidden" and will not accept them for transportation:
1. Explosive compositions that ignite spontaneously or undergo marked decomposition when subjected to temperatures of 75oC for 48 hours
2. Explosives containing a chlorate and also:
a) an ammonium salt, including a substituted ammonium or quaternary ammonium salt
b) an acidic substance, including a salt of a weak base and a strong acid
3. Propellants that are unstable, condemned or deteriorated
4. Nitroglycerin, diethylene glycol dinitrate or any other liquid explosives
5. Leaking or damaged packages of explosives
6. Firecrackers and other fireworks which combine an explosive and a detonator
7. Fireworks that contain yellow or white phosphorus
8. New explosives and explosive devices
9. Loaded firearms
Included in the above categories of materials are chemicals that have the potential to be created in the lab. Generally, these materials are produced and consumed on site. Extreme caution must be used if it is suspected that a reaction may produce any of these materials as a product or byproduct of the reaction. The following table lists many examples.

If you look at Table 172.101 (Specifically forbidden material) it lists Pentanitroanailine as forbidden only when dry. (Google search item#7)

Now that I’ve spoonfed you, do you need a bedtime story before going nighty-night?

[Bert]

The list of forbidden explosives includes things like bulk, dry PETN, dry mercury fulminate, some organic peroxides, and other things you wouldn't want the delivery man to drop a package of off the gate of the truck or leave parked in the hot sun. Various sensitive primaries and secondaries are permitted with a specified percentage of water or water/alcohol mix. DOT wrote most of those rules in response to an accident or loss... They are actually pretty reasonable, for industrial purposes at any rate.