Questions about Tannerite

Dolsak

New member
Greetings all.
I'm back, and I've brought more questions with the hope of picking TFL's collective brain.

This post's subject is Tannerite, the binary-explosive-reactive-target-substance we all know and love.
I've done, (and am still doing), research on the stuff, but there's only so much I can find.
[Plus, I enjoy conversation with other humans, as it often helps me reach conclusions and understandings that I wouldn't otherwise.]

At any rate, a couple of the questions I have are :

1) Is there any sort of 'amount of Tannerite to blast-yield/radius' formula that y'all are aware of? Anyone with firsthand experience who can shed light on how it's performed for them?

2) Would a primer fired while in contact with the mixture produce enough energy/pressure to detonate the target? Does the amount of Tannerite affect the energy necessary to detonate?

3) If #1 isn't too insanely high of a value, and #2 is a viable method of detonation, could Tannerite, IN VERY, VERY SMALL doses be a viable propellant? (Heavy projectile, low low LOW velocity?)


These questions came to my mind during a Physics class the other day, when we were using a spud gun to gather data for our mid-term papers.
I got talking with my teacher, and we started playing with the idea of a spud gun-style airsoft mortar.

The designs I've played around with, (All on paper, I'm not even buying ANY materials until I verify that what I'd like to build is completely legal), aren't true explosive devices, as much as they are giant muzzleloader shotguns, as there is no fragmentation if the design works as intended.

I've decided that if i do ever get to the prototype stage, I'll start with a 'mine', something stationary to test rather than a projectile.

The basic design is a tube with all the components in-line.
From back to front, it goes:
1) "firing pin"
2) Primer
3) Propellant (What exactly the propellant is is still up in the air, ranging from very small doses of Tannerite, to gunpowder, to aerosol sprays)
4) Wadding (I'm thinking along the lines of the fireproof wadding used in Model Rockets)
5) Projectile(s) (Airsoft pellets, each weighing about 3 grains. Lots of them)
6) A thin material on the end of the muzzle to retain the pellets until launch. (Tinfoil, plastic wrap, wax paper, etc.)

If the case doesn't fragment, would that design be classified as a 'Garage gun' instead of an explosive?


I look forward to reading your input on this, but if you respond, please keep in mind that as of now, this is purely a thought exercise. At this stage it's nothing more than a few crude drawings and lots of questions.
My first necessary step is to determine legality. If it's not legal, rest assured, I won't go any further.

I acknowledge the fact that I'm still a teenager, and by definition, ignorant about many things. I'm happy about that though, because it means there's still so much for me to learn. Criticism/advice welcome, just please treat me with some respect.

Curious as always
~ Dolsak
 
My experience...its awesome. I seriously doubt a primer could set it off as it requires a 2000fps projectile striking it to work. I would think it "burns" far too rapidly to be used for a propellant. Should be "field testing" some this weekend.
 
NO!!!!!!!!!!!!!!!!!!!!!!!!!!!
Tannerite is an explosive mixture, NOT A PROPELLENT!
There is a great difference.

Even if a primer could ignite it, which it can't, Tannerite has an extremely fast blast characteristic. It's a NOW! blast, not a progressive NOOOOOWWWW burn like gunpowder produces.

DO NOT TRY IT!
Denis
 
Yeah, I've pretty much canned tannerite as having any part of this project.

I might, if I can find someone willing to let me use a field out from the 'burbs, still try and experiment with the primer just out of sheer curiosity. :D
(I'm thinking behind a berm, with a good long length of wire in my hand to set off the primer)

So, tannerite's a no-go, but that's what I asked to find out.
Thanks all. :)

~Dolsak

P.S., I was looking on Tannerite's website, and apparently one of the retailers with Tannerite's blessing-to-sell is a FISH STORE, (The kind to buy fish for home aquariums) down the road, of all places. :eek:
How strange is that? :rolleyes:
 
Wise move. You may yet become an expert.

Experts, As Explosive professionals say, are retired with 10 fingers, 10 toes, facalities and organs intact.

I am EX EOD with 25 years experience handling explosives, propellants and associated hazardous materials. Still not an expert.
 
Ammonium nitrate-
Aluminum oxide powder.

Isn't that two? or am i missing something? :confused:


If it had a constituent based on rocket fuel (or nitro methane, for that matter) - it would be extremely flammable. Flammability and reactivity are two separate things.


Another handy fact about Tannerite. Add a little water to it and see what happens; turns out you've used its most dangerous component more often than you think...
 
I have not used tannerite but have been a commercial blaster. As already stated the answer is no, tannerite is a mixture of ammonium nitrate and Aluminium powder with some other constituents. For a propellant you CAN use ammonium nitrate and charcoal, which gives a relatively smokeless "blackpowder". Though remember ammonium nitrate is very hygroscopic (absorbs water) a big problem with a propellant.
 
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Magnumwill, its aluminium not the oxide. It turns into the oxide on detonation. Water will do little but destroy it, zinc powder on the other hand is very hazardous when mixed with ammonium nitrate and can very well cause fires if allowed to get wet.
 
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