oh common man, we all have ebw's
http://designcreatology.com/b/wp-content/uploads/2007/04/christmas_lights.png

Lol...

Anyways my ETN (done either via AN/H2SO4 or HNO3/H2SO4) always detonated (well burst in flames that is, never confined it) when put over a lighter flame for a few seconds.

I mean not like "boom it happens" but after 7-8 secs sitting above the flame.

Wait... i see the " ;) " but im going to ask anyways: can you use regular small lightbulbs for exploding bridgewires ? i thought that nichrome wont do, only gold and one other quite expensive material wire are capable of detonating from high current pulse.

In case you ment using these for simple electric ignition then thats not what EBW is :(

Lol...

Anyways my ETN (done either via AN/H2SO4 or HNO3/H2SO4) always detonated (well burst in flames that is, never confined it) when put over a lighter flame for a few seconds.

I mean not like "boom it happens" but after 7-8 secs sitting above the flame.


So i imagine that it sits above the flame, then melts, then starts on fire, then... what? does it just deflagrate or does it actually detonates after 7-8 secs ?

most secondaries have a temperature point at which they detonate. the thing is it's not really viable at all to try to heat to the point of detonation in a cap, if at all, which is why you use a primary (which will undergo deflagration to detonation) to initiate the explosive decomposition in secondaries.

Nah, not some improvised electronic ignition, I dont think you can make EBW out of any light bulbs, unless you know of some made with gold filament ;) Please enlighten me if there is a way.

Lol...

Anyways my ETN (done either via AN/H2SO4 or HNO3/H2SO4) always detonated (well burst in flames that is, never confined it) when put over a lighter flame for a few seconds.

I mean not like "boom it happens" but after 7-8 secs sitting above the flame.

So it melts and deflagrates... doesnt mean that it would DDT if confined :(
It wont, i tried... But it will work if:

a) you mix it in right proportions with fine Al powder (ETN has +OB,) thus creating "ETN flash powder" of sorts, you greatly increase your chances for DDT. Adding KClO4 MIGHT help. Not my idea (showthread.php?t=5675 on roguesci) But seems plausible. Such composition made into oversized cap (m80 tube) with a couple of grams of pressed ETN booster inside the tube (either end) would detonate ANFO if the ETN trully DDT. Sounds like something to try tonight.

b) You use thermite ignition charge like I mentioned above (patent 6227116)

c) ...EBW detonator...

I might be wrong, and i would be glad to hear that ETN will DDT by itself if confied :)

most secondaries have a temperature point at which they detonate. the thing is it's not really viable at all to try to heat to the point of detonation in a cap, if at all, which is why you use a primary (which will undergo deflagration to detonation) to initiate the explosive decomposition in secondaries.

Oh its very viable, dont knock it untill you try it. references above. We all know how much we hate primary explosives, the cheap ones are shitty (AP) and the good ones are expensive (AgN3), and they are all dangerous. Fuck primaries.


BTW why does a moderator need to approve my post ?!WTF!?

Don't talk out your ass. ETN is not flame sensitive in the sense that it will not DDT in a cap. There is a synth that uses ETN and H2SO4 to make a flame sensitive primary. Erythritite or something, it's been a while.
I did once get ETN to detonate when mixed up like smoke mix but this was probably a result of thermal shock.

So would I be right in thinking that a small BP charge could be used to det ETN, with the ETN detonating the AN?

Provided you pack your BP enough :)

?? I know you can make electric igniters out of these but EBWs? please enlighten me, or tell me where you buy bulbs with gold filament.

most secondaries have a temperature point at which they detonate. the thing is it's not really viable at all to try to heat to the point of detonation in a cap, if at all, which is why you use a primary (which will undergo deflagration to detonation) to initiate the explosive decomposition in secondaries.

Quite contrary, its quite viable, look up a patent titled "pyrotechnical charge for detonators", where they have 100% success with thermite mixture detonating PETN. I bet that ETN could be more prone to detonation in such scenario. The whole point is to eliminate the need for sensitive primary explosives.

So would I be right in thinking that a small BP charge could be used to det ETN, with the ETN detonating the AN?

I doubt it. I know NG was originally detonated using BP blasting caps, and considering the similarities between NG and ETN it seems feasible, however ime using flash powder (in a deep bottle cap) as a detonator i only got about 20% success initiating ETN and PETN. I would think 70:30 KClO4/3micron AL would be a great deal more powerful than BP.

Don't talk out your ass. ETN is not flame sensitive in the sense that it will not DDT in a cap. There is a synth that uses ETN and H2SO4 to make a flame sensitive primary. Erythritite or something, it's been a while.
I did once get ETN to detonate when mixed up like smoke mix but this was probably a result of thermal shock.

QFT. If you do come across that info on Erythritite please post a link as it is very interesting subject. Not quite fit for this thread but im sure there is a place for that here somewhere.

oh common man, we all have ebw's
http://designcreatology.com/b/wp-content/uploads/2007/04/christmas_lights.png
?? I know you can make electric igniters out of these but EBWs? please enlighten me, or tell me where you buy bulbs with gold filament.

most secondaries have a temperature point at which they detonate. the thing is it's not really viable at all to try to heat to the point of detonation in a cap, if at all, which is why you use a primary (which will undergo deflagration to detonation) to initiate the explosive decomposition in secondaries.

Quite contrary, its quite viable, look up a patent titled "pyrotechnical charge for detonators", where they have 100% success with thermite mixture detonating PETN. I bet that ETN could be more prone to detonation in such scenario. The whole point is to eliminate the need for sensitive primary explosives.

So would I be right in thinking that a small BP charge could be used to det ETN, with the ETN detonating the AN?

I doubt it. I know NG was originally detonated using BP blasting caps, and considering the similarities between NG and ETN it seems feasible, however ime using flash powder (in a deep bottle cap) as a detonator i only got about 20% success initiating ETN and PETN. I would think 70:30 KClO4/3micron AL would be a great deal more powerful than BP.

Don't talk out your ass. ETN is not flame sensitive in the sense that it will not DDT in a cap. There is a synth that uses ETN and H2SO4 to make a flame sensitive primary. Erythritite or something, it's been a while.
I did once get ETN to detonate when mixed up like smoke mix but this was probably a result of thermal shock.

QFT. If you do come across that info on Erythritite please post a link as it is very interesting subject. Not quite fit for this thread but im sure there is a place for that here somewhere.

do you have a diagram of what the charge would look like? i'm definitely not reading through the 60 pages the patent lol.

On the very last page of the patent they have 4 examples of the construction. Its quite simple, just like a compound detonator, it has thermite mix instead of primary and PETN pressed in the bottom. Thermite mix might not be fuse sensitive so appropriate ignition charge is placed on top of it. PETN can be pressed on the very bottom, then loosley packed immediatley before thermite charge, then some fuse sensitive hot burning ignition charge such as KNO3+sugar.

. Thermite mix might not be fuse sensitive so appropriate ignition charge is placed on top of it. PETN can be pressed on the very bottom, then loosley packed immediatley before thermite charge, then some fuse sensitive hot burning ignition charge such as KNO3+sugar.

KNO3+sugar doesnt detonate thermite, the easiest way to ignite thermite is a magnesiumn ribbon.

Using thermite at a detonator for ANFO is a smart idea though, never thought of it.

KNO3+sugar doesnt detonate thermite, the easiest way to ignite thermite is a magnesiumn ribbon.

Using thermite at a detonator for ANFO is a smart idea though, never thought of it.

The first flaw is that the heat from the thermite will ignite the gasoline BEFORE setting off the AN.

The second flaw is that even if you got it to detonated, you would get a half-assed detonation because the container would be half-melted.

And last but not least, the heat may and WILL also blow off the gasoline fumes, dispersing the AN.

The first flaw is that the heat from the thermite will ignite the gasoline BEFORE setting off the AN.

Gasoline? thats the flaw if anything... there is a reason why people use diesel. Besidesthey used a really small quantity of thermite, that was confined, and the time from ignition to the time of detonation was under 2 seconds... how is that going to ignite diesel or melt the container? lulz it isn't a clay pot filled with granulated thermite to the brim.


The second flaw is that even if you got it to detonated, you would get a half-assed detonation because the container would be half-melted.

Not really.


And last but not least, the heat may and WILL also blow off the gasoline fumes, dispersing the AN.
Because professionals keep their ANFO mixed and sitting at the site for any significant ammount of time before detonation... not to mention the use of GASOLINE...

KNO3+sugar doesnt detonate thermite, the easiest way to ignite thermite is a magnesiumn ribbon.

Using thermite at a detonator for ANFO is a smart idea though, never thought of it.

Well first of, thermite doesnt detonate from anything, it just burns providing enough heat and pressure to initiate PETN, which in turn sets off ANFO.