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2/2/2011 7:04:12 PM EDT
Ok, dont know a lot about it. Read a book that had it in it.
Is it one of those things that is illegal if you have all the components together?
Is it perfectly legal?

Dont mean to sound ignorant, but on this subject I pretty much am.
2/2/2011 7:06:49 PM EDT
[#1]
Federally?  Not an explosive and hard to ignite.  It is just a flammable solid.  But because it generates molten iron, it can burn through many materials.





Troofers claim about nano-thermite being an explosive, it is not.  Just a more rapid burning type and very difficult to make.





Local laws may be in effect so watch out.  Easy to mix when needed.

2/2/2011 7:08:34 PM EDT
[#2]
Search "fun with thermite" on Youtube
2/2/2011 7:09:37 PM EDT
[#3]




Quoted:

Federally? Not an explosive and hard to ignite. It is just a flammable solid. But because it generates molten iron, it can burn through many materials.



Troofers claim about nano-termite being an explosive, it is not. Just a more rapid burning type and very difficult to make.
All you need is some of this





light with one of these











Edit: Don't forget the slow release mechanism of a garden flower pot.
2/2/2011 7:09:43 PM EDT
[#4]
If it was illegal, they would have to make welding rods a controlled item.
2/2/2011 7:13:09 PM EDT
[#5]



I had the opportunity to light off several hundred pounds of that stuff.  Fun.  Don't look directly at the bright light  
2/2/2011 7:13:37 PM EDT
[#6]
Rail road track crews use it all the time on the tracks. The use maganese on others.
2/2/2011 7:20:15 PM EDT
[#7]
What is the ratio of iron oxide to aluminum?
2/2/2011 7:25:08 PM EDT
[#8]



Quoted:


What is the ratio of iron oxide to aluminum?









/My chem prof in college made us work it out ourselves


//Good enough way to keep people from using it that shouldn't as any, I think










 
2/2/2011 7:27:31 PM EDT
[#9]







Quoted:




What is the ratio of iron oxide to aluminum?




Iron oxide comes in several forms...red iron oxide needs 17% aluminum, 83% iron oxide by weight for stoichemetric mix.
Black iron oxide is usually a mixed form and as such, proper mix varies.  Start with 20% aluminum and 80% black iron oxide.
Fe2O3 + 2Al = 2Fe + 2 Al2O3 plus an ass load of heat



Fe has atomic mass of 55.85 g/mol, Oxygen is 15.99 g/mol and Aluminum is 26.98 g/mol



Reactants and products are solid.  Not an explosive.  Chemistry lesson over.
 
2/2/2011 8:00:16 PM EDT
[#10]
Quoted:
Ok, dont know a lot about it. Read a book that had it in it.
Is it one of those things that is illegal if you have all the components together?
Is it perfectly legal?

Dont mean to sound ignorant, but on this subject I pretty much am.


The only stupid question is the one you didn't ask. Ask your question and sound ignorant for a moment, remain silent and you'll be ignorant for a lifetime.

The components are pretty easy to find. Iron Oxide (Known widely as "Rust") and Aluminium powder.

Aluminum powder has become a quasi controlled compound as it is an ingredient in pretty much everything explosive, especially the high mesh count stuff. Add a little to some Potassium Perchlorate and a dash of Sulfur for a buffer to prevent shock sensitivity, and you've got flash powder, the active ingredient in all firecrackers. Had a buddy who figured he didn't need all that Sulfur nonsense just about blow his retard hand off. He put about a quarter pound on unbuffered flash powder in a plastic bottle and thought it'd be fun to throw it against something and have it go boom. When he went to cock his hand back for the throw, he hadn't filled the bottle to 100% so the powder sloshed in the bottle and went boom in his hand. Two fingers, his eyebrow, and a near blinding experience later and he's now one of the most careful people I've ever met.

Thermite is, as was said above, *NOT* an explosive. It burns pretty darn hot and that's pretty much it as it turns Iron oxide into Iron. You can order bags of the stuff online and it's perfectly legal. Five pounds of Thermite will run you right around $25. I have yet to find a jurisdiction where Thermite is illegal. I've got a five pound bag of the stuff and occasionally get some out to melt glass bottles. Mine is superfine mesh so burns extremely fast. The coarser your Thermite is, the longer the burn time. Mine is so fine that it can actually stain wood and when lit burns pretty much instantly.

I've put about a quarter pound in a wine bottle, the thick ones, and lit it. It turns those big green ones into a glowing, molten glass ball in just under a second. It is extremely stable, but the Aluminum will oxidize if you leave it sit too long and it won't work anymore. You can't light it with a lighter, no matter what Macguyver says. You'll need to light Magnesium ribbon with a pocket torch, and touch that to the Thermite. Oh, and not get your hand burned off in the process. Some people try to use the Magnesium ribbon as a Fuse, but invariably a piece of the lit ribbon falls into the Thermite while they've still got their hand in there and they get burninated. I just light a three inch piece of the ribbon and drop it from a foot or two above and jump back.

Thermite sounds like more fun than it really is. Get some and you'll agree. You'll melt some glass, burn a couple cans into nothingness, and then figure out that your $25 could have been spent on some Perchlorate, Aluminum, and Sulfur, or Black Powder, or better yet Tannerite(!)  and then you'd have some *REAL* fun.



That's a picture of Thermite.
2/2/2011 8:18:30 PM EDT
[#11]
Quoted:

Quoted:
What is the ratio of iron oxide to aluminum?

Iron oxide comes in several forms...red iron oxide needs 17% aluminum, 83% iron oxide by weight for stoichemetric mix.

Black iron oxide is usually a mixed form and as such, proper mix varies.  Start with 20% aluminum and 80% black iron oxide.

Fe2O3 + 2Al = 2Fe + 2 Al2O3 plus an ass load of heat

Fe has atomic mass of 55.85 g/mol, Oxygen is 15.99 g/mol and Aluminum is 26.98 g/mol

Reactants and products are solid.  Not an explosive.  Chemistry lesson over.
 


He-heh....
2/2/2011 8:20:00 PM EDT
[#12]
Very easy to make.
2/2/2011 8:22:11 PM EDT
[#13]
Quoted:
Quoted:
Ok, dont know a lot about it. Read a book that had it in it.
Is it one of those things that is illegal if you have all the components together?
Is it perfectly legal?

Dont mean to sound ignorant, but on this subject I pretty much am.


The only stupid question is the one you didn't ask. Ask your question and sound ignorant for a moment, remain silent and you'll be ignorant for a lifetime.

The components are pretty easy to find. Iron Oxide (Known widely as "Rust") and Aluminium powder.

Aluminum powder has become a quasi controlled compound as it is an ingredient in pretty much everything explosive, especially the high mesh count stuff. Add a little to some Potassium Perchlorate and a dash of Sulfur for a buffer to prevent shock sensitivity, and you've got flash powder, the active ingredient in all firecrackers. Had a buddy who figured he didn't need all that Sulfur nonsense just about blow his retard hand off. He put about a quarter pound on unbuffered flash powder in a plastic bottle and thought it'd be fun to throw it against something and have it go boom. When he went to cock his hand back for the throw, he hadn't filled the bottle to 100% so the powder sloshed in the bottle and went boom in his hand. Two fingers, his eyebrow, and a near blinding experience later and he's now one of the most careful people I've ever met.

Thermite is, as was said above, *NOT* an explosive. It burns pretty darn hot and that's pretty much it as it turns Iron oxide into Iron. You can order bags of the stuff online and it's perfectly legal. Five pounds of Thermite will run you right around $25. I have yet to find a jurisdiction where Thermite is illegal. I've got a five pound bag of the stuff and occasionally get some out to melt glass bottles. Mine is superfine mesh so burns extremely fast. The coarser your Thermite is, the longer the burn time. Mine is so fine that it can actually stain wood and when lit burns pretty much instantly.

I've put about a quarter pound in a wine bottle, the thick ones, and lit it. It turns those big green ones into a glowing, molten glass ball in just under a second. It is extremely stable, but the Aluminum will oxidize if you leave it sit too long and it won't work anymore. You can't light it with a lighter, no matter what Macguyver says. You'll need to light Magnesium ribbon with a pocket torch, and touch that to the Thermite. Oh, and not get your hand burned off in the process. Some people try to use the Magnesium ribbon as a Fuse, but invariably a piece of the lit ribbon falls into the Thermite while they've still got their hand in there and they get burninated. I just light a three inch piece of the ribbon and drop it from a foot or two above and jump back.

Thermite sounds like more fun than it really is. Get some and you'll agree. You'll melt some glass, burn a couple cans into nothingness, and then figure out that your $25 could have been spent on some Perchlorate, Aluminum, and Sulfur, or Black Powder, or better yet Tannerite(!)  and then you'd have some *REAL* fun.

http://www.casualgamersclan.com/modules/Forums/files/thumbs/t_powdered_fun_180.jpeg

That's a picture of Thermite.


If only perchlorate were easy to buy.  All the places I looked at were UBER strict on perchlorate sales.
2/2/2011 8:31:18 PM EDT
[#14]
If I tell you where to get it, will I be guilty of contributing to the delinquency of a husband and have your wife try to kill me?

I already had a mother try to strangle me when I taught her fourteen year old hyperactive son how to make Napalm... and he did... and then the little stoolie told her where he'd gleaned that knowledge...

I'll be teaching the little shit how to make Mercury Fulminate next.
2/2/2011 8:32:32 PM EDT
[#15]
8 parts iron oxide
3 parts aluminum powder.

magnesium ribbon as an ignighter.




the smaller the particle size the easier it ignites.  




I bought about 10 lbs of iron oxide and 5 lbs of aluminum powder and the magnesium ribbon on ebay for about 50 bucks.  I still have a bunch left.













Its fun.  but dont watch the reaction take place as it will burn your retinas.  
2/2/2011 8:35:49 PM EDT
[#16]
Quoted:
Quoted:
Ok, dont know a lot about it. Read a book that had it in it.
Is it one of those things that is illegal if you have all the components together?
Is it perfectly legal?

Dont mean to sound ignorant, but on this subject I pretty much am.


The only stupid question is the one you didn't ask. Ask your question and sound ignorant for a moment, remain silent and you'll be ignorant for a lifetime.

The components are pretty easy to find. Iron Oxide (Known widely as "Rust") and Aluminium powder.

Aluminum powder has become a quasi controlled compound as it is an ingredient in pretty much everything explosive, especially the high mesh count stuff. Add a little to some Potassium Perchlorate and a dash of Sulfur for a buffer to prevent shock sensitivity, and you've got flash powder, the active ingredient in all firecrackers. Had a buddy who figured he didn't need all that Sulfur nonsense just about blow his retard hand off. He put about a quarter pound on unbuffered flash powder in a plastic bottle and thought it'd be fun to throw it against something and have it go boom. When he went to cock his hand back for the throw, he hadn't filled the bottle to 100% so the powder sloshed in the bottle and went boom in his hand. Two fingers, his eyebrow, and a near blinding experience later and he's now one of the most careful people I've ever met.

Thermite is, as was said above, *NOT* an explosive. It burns pretty darn hot and that's pretty much it as it turns Iron oxide into Iron. You can order bags of the stuff online and it's perfectly legal. Five pounds of Thermite will run you right around $25. I have yet to find a jurisdiction where Thermite is illegal. I've got a five pound bag of the stuff and occasionally get some out to melt glass bottles. Mine is superfine mesh so burns extremely fast. The coarser your Thermite is, the longer the burn time. Mine is so fine that it can actually stain wood and when lit burns pretty much instantly.

I've put about a quarter pound in a wine bottle, the thick ones, and lit it. It turns those big green ones into a glowing, molten glass ball in just under a second. It is extremely stable, but the Aluminum will oxidize if you leave it sit too long and it won't work anymore. You can't light it with a lighter, no matter what Macguyver says. You'll need to light Magnesium ribbon with a pocket torch, and touch that to the Thermite. Oh, and not get your hand burned off in the process. Some people try to use the Magnesium ribbon as a Fuse, but invariably a piece of the lit ribbon falls into the Thermite while they've still got their hand in there and they get burninated. I just light a three inch piece of the ribbon and drop it from a foot or two above and jump back.

Thermite sounds like more fun than it really is. Get some and you'll agree. You'll melt some glass, burn a couple cans into nothingness, and then figure out that your $25 could have been spent on some Perchlorate, Aluminum, and Sulfur, or Black Powder, or better yet Tannerite(!)  and then you'd have some *REAL* fun.

http://www.casualgamersclan.com/modules/Forums/files/thumbs/t_powdered_fun_180.jpeg

That's a picture of Thermite.


We were always told that you should avoid touching thermite with your bare hands, and really avoid inhaling any dust from it.  Aluminum is toxic.



Also there are different kinds of thermite.  We use a copper based thermite at work to weld copper to steel.
2/2/2011 8:49:46 PM EDT
[#17]
Quoted:
We were always told that you should avoid touching thermite with your bare hands, and really avoid inhaling any dust from it.  Aluminum is toxic.



Also there are different kinds of thermite.  We use a copper based thermite at work to weld copper to steel.


Yup, Magnesium Thermite is REALLY cool... er well... yeah.

Breathing the Aluminium dust can be harmful, but it's not like I'm snorting a line of the crap. You can touch it and not hurt yourself. It's not going to hurt you if you get it on your skin either!

They don't want you Army guys touching the Thermite because of a couple nasty additives and the fact that putting something like raw Thermite in the hands of a bunch of emotional twelve year olds is generally regarded as a bad thing. Not that there aren't very intelligent people in the Army, but let's face facts here, the E3-E4 Mafia being what it is, you have to figure they'll have the stuff in their ass in under about six seconds. Therefore they tell you not to touch it.

On Mythbusters they completely covered Kari Byron, head to toe in Aluminum powder. As far as I can tell, she's still both alive and hot, and recently had a crib-midget.

Found a Youtube video of it, you should watch just for the Kari Byron hottness (She's in a bikini.)

http://www.youtube.com/watch?v=g3yuKEILdqk
2/2/2011 8:51:01 PM EDT
[#18]



Quoted:


If I tell you where to get it, will I be guilty of contributing to the delinquency of a husband and have your wife try to kill me?



I already had a mother try to strangle me when I taught her fourteen year old hyperactive son how to make Napalm... and he did... and then the little stoolie told her where he'd gleaned that knowledge...



I'll be teaching the little shit how to make Mercury Fulminate next.


PbN6 is more fun.  Slightly less toxic too unless you get sloppy with the N3 ion.



 
2/2/2011 9:07:08 PM EDT
[#19]




Quoted:

What is the ratio of iron oxide to aluminum?




3 part iron oxide to 1 part aluminum.
2/2/2011 9:07:28 PM EDT
[#20]
Quoted:

Quoted:
If I tell you where to get it, will I be guilty of contributing to the delinquency of a husband and have your wife try to kill me?

I already had a mother try to strangle me when I taught her fourteen year old hyperactive son how to make Napalm... and he did... and then the little stoolie told her where he'd gleaned that knowledge...

I'll be teaching the little shit how to make Mercury Fulminate next.

PbN6 is more fun.  Slightly less toxic too unless you get sloppy with the N3 ion.
 


Lead Azide's a little outside my insanity level.

Just making that stuff is dangerous, and getting your hands on Sodium Azide is nigh impossible without instant and intense government scrutiny and I'm not exactly sure how to synthesize it. One good rub on your graduated cylinder while you're mixing and you could have a quite violent reaction.

I suppose that's better than getting a whiff of Nitrogen Dioxide, but one screwup and you could have that crap in your face in a hurry.
2/2/2011 10:40:12 PM EDT
[#21]



Quoted:



Quoted:




Quoted:

If I tell you where to get it, will I be guilty of contributing to the delinquency of a husband and have your wife try to kill me?



I already had a mother try to strangle me when I taught her fourteen year old hyperactive son how to make Napalm... and he did... and then the little stoolie told her where he'd gleaned that knowledge...



I'll be teaching the little shit how to make Mercury Fulminate next.


PbN6 is more fun.  Slightly less toxic too unless you get sloppy with the N3 ion.

 




Lead Azide's a little outside my insanity level.



Just making that stuff is dangerous, and getting your hands on Sodium Azide is nigh impossible without instant and intense government scrutiny and I'm not exactly sure how to synthesize it. One good rub on your graduated cylinder while you're mixing and you could have a quite violent reaction.



I suppose that's better than getting a whiff of Nitrogen Dioxide, but one screwup and you could have that crap in your face in a hurry.


It is a non-drama if you know what you are doing.  I used it for filling hollowpoint air rifle pellets, sealing it with nitrocellulose lacquer.  When they hit, it was a considerable pop, shattering the nose of the pellet into lead dust.
 
2/2/2011 10:53:13 PM EDT
[#22]



Quoted:





Quoted:


Quoted:




Quoted:

If I tell you where to get it, will I be guilty of contributing to the delinquency of a husband and have your wife try to kill me?



I already had a mother try to strangle me when I taught her fourteen year old hyperactive son how to make Napalm... and he did... and then the little stoolie told her where he'd gleaned that knowledge...



I'll be teaching the little shit how to make Mercury Fulminate next.


PbN6 is more fun.  Slightly less toxic too unless you get sloppy with the N3 ion.

 




Lead Azide's a little outside my insanity level.



Just making that stuff is dangerous, and getting your hands on Sodium Azide is nigh impossible without instant and intense government scrutiny and I'm not exactly sure how to synthesize it. One good rub on your graduated cylinder while you're mixing and you could have a quite violent reaction.



I suppose that's better than getting a whiff of Nitrogen Dioxide, but one screwup and you could have that crap in your face in a hurry.


It is a non-drama if you know what you are doing.  I used it for filling hollowpoint air rifle pellets, sealing it with nitrocellulose lacquer.  When they hit, it was a considerable pop, shattering the nose of the pellet into lead dust.





 
Sounds like the next generation of self defense hollowpoints.



Please team up with old painless and test some 10mm thermite hollow points.





 
2/2/2011 11:00:56 PM EDT
[#23]


There was a case were they took the thermite from a bunch of EtchASketch toys.They locked the security guard in a porty potty and stole some ingredient to make meth..They burned the lock and got away with a big 55 gallon of meth ingridients. DEA is still looking into it last I heard..
2/2/2011 11:02:22 PM EDT
[#24]
Quoted:
Quoted:
Ok, dont know a lot about it. Read a book that had it in it.
Is it one of those things that is illegal if you have all the components together?
Is it perfectly legal?

Dont mean to sound ignorant, but on this subject I pretty much am.


The only stupid question is the one you didn't ask. Ask your question and sound ignorant for a moment, remain silent and you'll be ignorant for a lifetime.

The components are pretty easy to find. Iron Oxide (Known widely as "Rust") and Aluminium powder.

Aluminum powder has become a quasi controlled compound as it is an ingredient in pretty much everything explosive, especially the high mesh count stuff. Add a little to some Potassium Perchlorate and a dash of Sulfur for a buffer to prevent shock sensitivity, and you've got flash powder, the active ingredient in all firecrackers. Had a buddy who figured he didn't need all that Sulfur nonsense just about blow his retard hand off. He put about a quarter pound on unbuffered flash powder in a plastic bottle and thought it'd be fun to throw it against something and have it go boom. When he went to cock his hand back for the throw, he hadn't filled the bottle to 100% so the powder sloshed in the bottle and went boom in his hand. Two fingers, his eyebrow, and a near blinding experience later and he's now one of the most careful people I've ever met.

Thermite is, as was said above, *NOT* an explosive. It burns pretty darn hot and that's pretty much it as it turns Iron oxide into Iron. You can order bags of the stuff online and it's perfectly legal. Five pounds of Thermite will run you right around $25. I have yet to find a jurisdiction where Thermite is illegal. I've got a five pound bag of the stuff and occasionally get some out to melt glass bottles. Mine is superfine mesh so burns extremely fast. The coarser your Thermite is, the longer the burn time. Mine is so fine that it can actually stain wood and when lit burns pretty much instantly.

I've put about a quarter pound in a wine bottle, the thick ones, and lit it. It turns those big green ones into a glowing, molten glass ball in just under a second. It is extremely stable, but the Aluminum will oxidize if you leave it sit too long and it won't work anymore. You can't light it with a lighter, no matter what Macguyver says. You'll need to light Magnesium ribbon with a pocket torch, and touch that to the Thermite. Oh, and not get your hand burned off in the process. Some people try to use the Magnesium ribbon as a Fuse, but invariably a piece of the lit ribbon falls into the Thermite while they've still got their hand in there and they get burninated. I just light a three inch piece of the ribbon and drop it from a foot or two above and jump back.

Thermite sounds like more fun than it really is. Get some and you'll agree. You'll melt some glass, burn a couple cans into nothingness, and then figure out that your $25 could have been spent on some Perchlorate, Aluminum, and Sulfur, or Black Powder, or better yet Tannerite(!)  and then you'd have some *REAL* fun.

http://www.casualgamersclan.com/modules/Forums/files/thumbs/t_powdered_fun_180.jpeg

That's a picture of Thermite.


ahhh don't add sulfur to the flash powder.  The sulfur actually makes the mixture more sensitive to flame and to shock.  This is due to the sulfur containing trace amounts of acid.  There are many grades of sulfur and rubber makers grade is generally the best as it has a lower amount of acid in it.  

This is a quote from Fireworks The art, science and technique by Takeo Shimizu.  The composition which contains sulphur and some oxidizer is generally sensitive to shock and friction.  The highest degree of sensitivity is in combination with chlorate; next with ammonium perchlorate; with potassium perchlorate...

ETA:
If you want to make flashpowder a weight ratio of 7:3 KClO4:German dark Aluminum is commonly used.  Indian blackhead can be used if the German variant cannot be sourced.  When making these devices the dark Aluminum is better as it is of small particle size (fast reaction) and is flake shaped (more surface area).  There is a very noticable difference between the dark aluminum and other grades such as atomized. The dark aluminum flash powder can ignite in small quantities easily and will produce a loud report even in weak confinement such as a plastic straw. The atomized variant requires sturdier confinement to produce a report.  The purity/grade of the KClO4 is less important but one should still try to source good quality chemicals
2/2/2011 11:06:30 PM EDT
[#25]



Quoted:





..

 
Sounds like the next generation of self defense hollowpoints.



Please team up with old painless and test some 10mm thermite hollow points.



 


That wasn't thermite.  OP doesn't want to fool with HE projectiles and I would never do it from a firearm.  There is a different level of acceleration in an air rifle, 18" barrel, 0-1100 FPS compared to a 5" barrel and the same velocity.  It is over 4 times the acceleration, not wanting to risk an in barrel detonation.



My HE air rifle pellets would go high order when impacting a single layer of newspaper .  But with 1/2 grain, it wasn't much.  You could pack 4 grains in a 10mm HP.  



 
2/2/2011 11:09:00 PM EDT
[#26]
Quoted:

Quoted:
If I tell you where to get it, will I be guilty of contributing to the delinquency of a husband and have your wife try to kill me?

I already had a mother try to strangle me when I taught her fourteen year old hyperactive son how to make Napalm... and he did... and then the little stoolie told her where he'd gleaned that knowledge...

I'll be teaching the little shit how to make Mercury Fulminate next.

PbN6 is more fun.  Slightly less toxic too unless you get sloppy with the N3 ion.
 

The amount of N does not make a difference if Uuq,Bi, Sr are added at correct amounts and doubling its effectiveness, then N wont really matter. Careful with adding Np as some amateurs would do and hurt themselves..Ok enough of me trying to impress people with a elemental name for lead azide..
2/2/2011 11:38:07 PM EDT
[#27]
Quoted:


Troofers claim about nano-thermite being an explosive, it is not.  Just a more rapid burning type and very difficult to make.





Copper oxide Aluminum Thermite is the most impressive.  Supposedly some researchers were able to get nano CuO/Al to burn at 2400 m/s.  This required something more complex than just regular old physical mixing.

http://www.wydawnictwa.ipo.waw.pl/cejem/2-2010/full/Klapotke.pdf
2/3/2011 12:26:49 AM EDT
[#28]
It's completely legal, as others have stated.

I toyed with it when I was a teenager... It'll burn through a lot of things.
2/3/2011 12:30:39 AM EDT
[#29]
Here's my thermite video (and other stuff)

http://www.metacafe.com/watch/718206/explosive_chemistry/
2/3/2011 12:33:43 AM EDT
[#30]
I made some in HS science lab ( 1978)( with the teachers permission from a special forces surplus book)

We put it on a 1/2 piece of steel that was on a ceramic bowl that was on the lab counter.

I lit it with a strip of magnesium and a match

tIt burned through the 1/2 plate of steel, through the ceramic bowl and through the lab counter top. In ran out of heat as it went halfway through the lab cabinet below the counter and stopped on the subfloor.

Fire extinguishes were used after the thermite was gone.

That shit gets hot.

Science lab was not usually that much fun!

ETA: If I remember right we had it sit above the steel plate in a half cut can so it would hit the steel after it went through the can already super hot. We followed the SF directions on how to burn into a filing cabinet.
2/3/2011 6:48:05 AM EDT
[#31]
Quoted:
ahhh don't add sulfur to the flash powder.  The sulfur actually makes the mixture more sensitive to flame and to shock.  This is due to the sulfur containing trace amounts of acid.  There are many grades of sulfur and rubber makers grade is generally the best as it has a lower amount of acid in it.  

This is a quote from Fireworks The art, science and technique by Takeo Shimizu.  The composition which contains sulphur and some oxidizer is generally sensitive to shock and friction.  The highest degree of sensitivity is in combination with chlorate; next with ammonium perchlorate; with potassium perchlorate...



Hmm... Interesting.

When we made a small batch of it (Flash powder), only Aluminum and Potassium Perchlorate, it was all kinds of shock sensitive! As in, a small bag dropped from three feet would go bang. Only after the buffer was added could we safely handle it.  

I think it really depends on the ratio of Aluminum to Perchlorate, and we were using a little more perchlorate than we probably should have. The sulfur made it smell quasi bad, but it wouldn't blow your hand off when you moved it around in a bottle.
2/3/2011 6:50:52 AM EDT
[#32]
Quoted:

<excellent info snipped>


Thermite sounds like more fun than it really is. Get some and you'll agree. You'll melt some glass, burn a couple cans into nothingness, and then figure out that your $25 could have been spent on some Perchlorate, Aluminum, and Sulfur, or Black Powder, or better yet Tannerite(!)  and then you'd have some *REAL* fun.


+1 on that.  A couple of high-school buddies and I experimented with thermite reactions a long time ago.  A lot of heat, light, and molten slag... and it destroys whatever container you use to hold it.  The novelty wore off fast.
2/3/2011 6:56:21 AM EDT
[#33]
Quoted:
Quoted:

Quoted:
If I tell you where to get it, will I be guilty of contributing to the delinquency of a husband and have your wife try to kill me?

I already had a mother try to strangle me when I taught her fourteen year old hyperactive son how to make Napalm... and he did... and then the little stoolie told her where he'd gleaned that knowledge...

I'll be teaching the little shit how to make Mercury Fulminate next.

PbN6 is more fun.  Slightly less toxic too unless you get sloppy with the N3 ion.
 


Lead Azide's a little outside my insanity level.

Just making that stuff is dangerous, and getting your hands on Sodium Azide is nigh impossible without instant and intense government scrutiny and I'm not exactly sure how to synthesize it. One good rub on your graduated cylinder while you're mixing and you could have a quite violent reaction.

I suppose that's better than getting a whiff of Nitrogen Dioxide, but one screwup and you could have that crap in your face in a hurry.


Sodium azide is a common preservative used in biochemistry and molecular biology labs.  We use it to prevent microbial growth in protein solutions, antibody stocks, affinity columns and such.  I have a 25 gram bottle in the lab right now.  We ordered it from Sigma-Aldrich years ago, and it's a lifetime supply for that purpose.  I don't know if it's any harder to obtain nowadays.  Sigma probably would sit up and take notice of a lab that was ordering large quantities.
2/3/2011 7:09:21 AM EDT
[#34]
This thread is very informative.
2/4/2011 6:20:42 PM EDT
[#35]
Quoted:
Quoted:

Quoted:
If I tell you where to get it, will I be guilty of contributing to the delinquency of a husband and have your wife try to kill me?

I already had a mother try to strangle me when I taught her fourteen year old hyperactive son how to make Napalm... and he did... and then the little stoolie told her where he'd gleaned that knowledge...

I'll be teaching the little shit how to make Mercury Fulminate next.

PbN6 is more fun.  Slightly less toxic too unless you get sloppy with the N3 ion.
 


Lead Azide's a little outside my insanity level.

Just making that stuff is dangerous, and getting your hands on Sodium Azide is nigh impossible without instant and intense government scrutiny and I'm not exactly sure how to synthesize it. One good rub on your graduated cylinder while you're mixing and you could have a quite violent reaction.


I suppose that's better than getting a whiff of Nitrogen Dioxide, but one screwup and you could have that crap in your face in a hurry.


You need to use a nucleating agent when making it such as sodium carboxymethylcellulose or dextrin.  The latter act as the nucleus onto which the crystals form.  So instead of long sensitive crystals, you form small spheres.  They are heat, friction and static electricity resistant.  What you're referring to is large crystals which can go off when they break.  

If you don't have sodium azide, you can make the insoluble silver salt using hydrazine sulfate as follows:

2N2H4.H2SO4 + 2NaNO2 + 2AgNO3––––->2AgN3 + 2NaNO3 + 4H2O + 2H2SO4

AgN3 is much less soluble than Ag2SO4 so don't worry about any sulfate in solution.  It won't interfere a bit.  The reason to make the silver salt is because lead nitrite will quickly precipitate as lead sulfate and your reaction ends there.  Just don't forget to use a nucleating agent.  Filter off the AgN3 and wash it with distilled water.  

That's what I read in a book anyway.
2/4/2011 6:27:56 PM EDT
[#36]



Quoted:



Quoted:


Quoted:




Quoted:

If I tell you where to get it, will I be guilty of contributing to the delinquency of a husband and have your wife try to kill me?



I already had a mother try to strangle me when I taught her fourteen year old hyperactive son how to make Napalm... and he did... and then the little stoolie told her where he'd gleaned that knowledge...



I'll be teaching the little shit how to make Mercury Fulminate next.


PbN6 is more fun.  Slightly less toxic too unless you get sloppy with the N3 ion.

 




Lead Azide's a little outside my insanity level.



Just making that stuff is dangerous, and getting your hands on Sodium Azide is nigh impossible without instant and intense government scrutiny and I'm not exactly sure how to synthesize it. One good rub on your graduated cylinder while you're mixing and you could have a quite violent reaction.




I suppose that's better than getting a whiff of Nitrogen Dioxide, but one screwup and you could have that crap in your face in a hurry.




You need to use a nucleating agent when making it such as sodium carboxymethylcellulose or dextrin.  The latter act as the nucleus onto which the crystals form.  So instead of long sensitive crystals, you form small spheres.  They are heat, friction and static electricity resistant.  What you're referring to is large crystals which can go off when they break.  



If you don't have sodium azide, you can make the insoluble silver salt using hydrazine sulfate as follows:



2N2H4.H2SO4 + 2NaNO2 + 2AgNO3––––->2AgN3 + 2NaNO3 + 4H2O



AgN3 is much less soluble than Ag2SO4.  Just don't forget a nucleating agent.


Silver is CONSIDERABLY more sensitive.  That is what was used for those "cigarette loads" to make exploding cigarettes.  They were wooden splints covered with a tiny bit of silver azide.



Yes, I used 1% dextrin in both lead nitrate and sodium azide solutions.  Volume was low to keep heat down.  And the PbN6 was kept wet.  It still will detonate wet but it is much less heat sensitive.
 
2/4/2011 6:33:32 PM EDT
[#37]
Quoted:

Quoted:
Quoted:
Quoted:

Quoted:
If I tell you where to get it, will I be guilty of contributing to the delinquency of a husband and have your wife try to kill me?

I already had a mother try to strangle me when I taught her fourteen year old hyperactive son how to make Napalm... and he did... and then the little stoolie told her where he'd gleaned that knowledge...

I'll be teaching the little shit how to make Mercury Fulminate next.

PbN6 is more fun.  Slightly less toxic too unless you get sloppy with the N3 ion.
 


Lead Azide's a little outside my insanity level.

Just making that stuff is dangerous, and getting your hands on Sodium Azide is nigh impossible without instant and intense government scrutiny and I'm not exactly sure how to synthesize it. One good rub on your graduated cylinder while you're mixing and you could have a quite violent reaction.


I suppose that's better than getting a whiff of Nitrogen Dioxide, but one screwup and you could have that crap in your face in a hurry.


You need to use a nucleating agent when making it such as sodium carboxymethylcellulose or dextrin.  The latter act as the nucleus onto which the crystals form.  So instead of long sensitive crystals, you form small spheres.  They are heat, friction and static electricity resistant.  What you're referring to is large crystals which can go off when they break.  

If you don't have sodium azide, you can make the insoluble silver salt using hydrazine sulfate as follows:

2N2H4.H2SO4 + 2NaNO2 + 2AgNO3––––->2AgN3 + 2NaNO3 + 4H2O

AgN3 is much less soluble than Ag2SO4.  Just don't forget a nucleating agent.

Silver is CONSIDERABLY more sensitive.  That is what was used for those "cigarette loads" to make exploding cigarettes.  They were wooden splints covered with a tiny bit of silver azide.

Yes, I used 1% dextrin in both lead nitrate and sodium azide solutions.  Volume was low to keep heat down.  And the PbN6 was kept wet.  It still will detonate wet but it is much less heat sensitive.


Wrong.

Those "cigarette loads" and "Snaps" use silver fulminate, and it's made in an identical manner as mercury fulminate.  It's more sensitive than mercury fulminate.

AgN3 is just as stable as the lead salt and is often used in its place since, despite the higher cost by weight, a smaller quantity can be used ie. it's a stronger initiator.  AgN3 is light sensitive (like all silver salts) but this becomes irrelevant once compressed into a detonator or other fuze device.