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Backyard Ballistics This forum is dedicated to the safe teaching and responsible handling of high and low explosives. You will not find any information on how to make "bombs" or any such device(s) . Backyard ballistics will teach you the science and the art of pyrotechnics and how to manufacture and use explosives/pyrotechnics safely and responsibly. Backyard ballistics is also a haven for rocketry and pneumatic cannons. All information contained within this forum is for educational purposes ONLY. Totse does not accept responsiblity for any incident involving the use of the information contained within this forum.

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 #1 
Old 2002-12-03, 15:44
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Dublin Ireland
Default Doubled HMTD

Can you use HMTD to make other explosives?
 #2 
Old 2002-12-03, 17:07
Another Henry Another Henry is offline
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Default Re: Doubled HMTD

Not quite sure what you mean, but it can be mixed in a ratio of about 1:8 with Ammonium Nitrate - this would useful as a booster charge to set off the main load of AN.
 #3 
Old 2002-12-03, 18:38
Zero the Inestimable Zero the Inestimable is offline
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Default Re: Doubled HMTD

����Chemically speaking HMTD cannot be used as a base for any other explosive that I know of. As noted it can be mixed with a secondary to (greatly) increase its sensitivity.

~Zero
 #4 
Old 2002-12-03, 18:48
Regular
 
Dublin Ireland
Default Re: Doubled HMTD

What I meant Another Henry was that could it be used to make other explosives eg : DNPA

ps:does anyone have any good ideas for like good stuff to do with explosives because Im making a new site and I need some suggestions because I havent got time to think of any because I have a load of tests in my school greatly appreciated

[This message has been edited by Daithai (edited 12-03-2002).]
 #5 
Old 2002-12-03, 19:07
Regular
 
Dublin Ireland
Default Re: Doubled HMTD

Oh!

I just had an idea for my site tell me if you think it is good or insane (probly insane)

Ok hears my idea if i fill a small paint can up with 1/4 BP and 2/4 fp drilled a hole for the fuse in the lid ,fixed everything into place lit the long fuse and ran what the explosion be like would it be disasterous or just really really cool?

[This message has been edited by Daithai (edited 12-03-2002).]
 #6 
Old 2002-12-03, 19:14
NickSG NickSG is offline
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Default Re: Doubled HMTD

why would you want something that big? i would just make a lot of smaller(3 gram) salutes.
 #7 
Old 2002-12-03, 19:59
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Dublin Ireland
Default Re: Doubled HMTD

I dont know Im really tired from working on my site and i think im goin mad from the tiredness so thats why I probly posted it


 #8 
Old 2002-12-03, 20:43
Genital-Warfare Genital-Warfare is offline
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Default Re: Doubled HMTD

Whats your site url? you should have it in your profile.

CTR
 #9 
Old 2002-12-03, 22:14
Zero the Inestimable Zero the Inestimable is offline
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Default Re: Doubled HMTD

����That would probably just blow the lid of the can off and waste a lot of materials.

~Zero
 #10 
Old 2002-12-04, 16:21
Regular
 
Dublin Ireland
Default Re: Doubled HMTD

quote:
Originally posted by Genital-Warfare:
Whats your site url? you should have it in your profile.

CTR



Ive just created it.Its one of those Angelfire free websites,I dont have much money to buy one because i spend most of the money i get on explosives supplies but most of the stuff i get i steal from my job or get for free,How much doyou guys spend per month on supplies I mostly spend ~�60/$70 on supplies
 #11 
Old 2002-12-04, 23:26
PETNpyro PETNpyro is offline
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Default Re: Doubled HMTD

You can't make any new explosives from HMTD, but if you make HMTD you must have hexamine and here are some explosives you can make using hexamine:

11) C.T.M.T.N.A. (Cyclotrimethylenetrinitrosamine, R-salt)


This is R.D.X., but missing three oxygen atoms (one from each NO2 group). It uses no concentrated nitric acid. The only acid used is hydrochloric, and it doesn't even have to be very concentrated. This explosive is carcinogenic and toxic, contact should be avoided. However, thi is perhaps the best explosive to make at home since it is easy to produce and powerful. The reason it's not used militarily is the low yield of 30% (I have seen 50% stated, but this means that the weight yielded is 50% of the weight of hexamethylenetetramine used, e.g. 3.5 grams of C.T.M.T.N.A. from 7 grams of hexamethylenetetramine.)
VoD is 7800 m/s at 1.57 g/cm3. Relative briscancy is 1.17. Lead block expansion is 370 cm3. At this density 2.5 grams of Mercury Fulminate will cause detonation, at 0.85 g/cm3 a mere 0.3 grams of Mercury Fulmiate will suffice!


You will need:


7g of hexamethylenetetramine,
60mL of 15% hydrochloric acid,
10.5g of sodium nitrite,
Distilled water,
50mL of 10% sodium carbonate solution,
20mL of acetone,
1g of sodium carbonate,
An ice bath,
A 150mL beaker,
A thermometer,
A filter funnel,
Three filter papers.


1) Dissolve the hexamine in 25mL of water and add the hydrochloric acid in the 150mL beaker.
2) Cool this to 0*C in the ice bath, and add a solution of the sodium nitrite in 50mL of water, while stirring.
3) Leave the solution to react overnight at 5*C, and then filter out the crystals.
4) Wash them with 200mL of water, then the sodium carbonate solution, then another 200mL of water.
5) Dissolve them in the acetone at around 40*C, add the 1 gram of sodium carbonate, and stir for 5 minutes.
6) Filter the solution
7) Dump the filtrate into 100mL of cold water in the other 150mL beaker to precipitate the crystals.
7) Filter them out, and leave them to dry in a warm, dry place in a thin layer.

6) Hexamethylenetetramine Dinitrate (no HNO3 needed)


I don't have much information on this explosive at the moment, but I'll keep looking... I think I heard that VoD was around 6000-7000 m/s, with a lead block expansion of 220 cm3, but I can't remember. I will find out. It is a similar sort of explosive to Urea Nitrate and M.M.A.N., i.e. it is a nitrate salt.


You will need:


5g of hexamethylenetetramine,
65mL of 15% hydrochloric acid,
10g of ammonium nitrate,
A 150mL beaker,
A filter funnel,
A filter paper,
A glass rod,
A fridge.


1) Pour the hydrochloric acid into the beaker and add the ammonium nitrate.
2) Stir the solution with the glass rod until all the ammonium nitrate has dissolved.
3) Cool the solution to 5*C in the fridge.
4) Add the hexamethylenetetramine. Stir it with the glass rod until it has all dissolved. A white crystalline precipitate should form.
5) Quickly filter out the precipitate.
6) Leave it in a warm, dry place to dry fully

6)a) Hexamethylenetetramine Dinitrate (with HNO3, much better yield)


You will need:


14g of hexamethylenetetramine,
20mL of 70% nitric acid,
Distilled water,
Three 150mL beakers,
A thermometer,
A filter funnel,
Filter papers,
An ice bath,
A fridge,
Acetone.


1) Dissolve the hexamethylenetetramine in 100mL of water in one of the beakers (it will help if you heat it up, to around 80*C). Put it into the fridge after it's all dissolved, and cool it to around 5*C.
2) Measure out the nitric acid into another 150mL beaker.
3) Slowly, while stirring with the thermometer and keeping the temperature below 5*C (with the ice bath), add the nitric acid to the hexamethylenetetramine solution.
4) After the nitric acid has been added, cool the solution to 0*C.
5) Filter out the precipitate, and add it to 100mL of acetone in the third 150mL beaker.
6) Use the thermometer to crush it up and stir it around under the acetone.
7) Filter out the solid, and leave it to dry. Protect it from moisture.


and then there is always RDX, that is made from hexamine
 #12 
Old 2002-12-05, 00:28
DavidThePyro DavidThePyro is offline
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Default Re: Doubled HMTD

Where'd you steal that from?
 #13 
Old 2002-12-05, 23:49
PETNpyro PETNpyro is offline
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Default Re: Doubled HMTD

http://www.flashbangboom.homestead.com/home_page.html
 #14 
Old 2002-12-05, 23:54
DeusExMachina DeusExMachina is offline
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Default Re: Doubled HMTD

quote:
Originally posted by DavidThePyro:
Where'd you steal that from?


ya, I could tell that was stolen without having any back up for it the second I read the first word lol
 #15 
Old 2002-12-08, 05:55
static_firefly static_firefly is offline
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Default Re: Doubled HMTD

are the explosive there legit? because if they are they are simple to make.
 #16 
Old 2002-12-09, 00:25
PETNpyro PETNpyro is offline
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Default Re: Doubled HMTD

I didn't post that trying to make it appear I pulled those outta my ass.
Go to the website I posted, the person who created that page is from the forum I belong to, they are real, you can even see how much he got from each synthesis in the yields section.
The only reason I would make R-salt of RDX is to further oxidize it to RDX. And that goes the same for Hexamine Dinitrate. These methods would help to conserve my precious distilled nitric acid.

[This message has been edited by PETNpyro (edited 12-09-2002).]
 
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