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markx
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Ya...the cuss words!
The long ones we call the "triplet state"....when you combine 3 curse words into one awsome one 
Exact science is a figment of imagination.......
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Hennig Brand
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I am learning more about Russian culture all the time. 
Didn't know about the OCR thing actually until earlier today, as I don't do a lot of translation usually. The few programs I tried first didn't seem
to be able to deal with that particular text. I just found a method that works to translate the document. Convert the pages to jpeg images, then load
images into this Russian OCR text extractor. http://www.i2ocr.com/free-online-russian-ocr
The obtained text can be copy/pasted into a translator. I used Google Translate, but there are probably better ones. I can get the meaning out of most
of the translation, but it's not exactly perfect English.
[Edited on 9-1-2014 by Hennig Brand]
"A risk-free world is a very dull world, one from which we are apt to learn little of consequence." -Geerat Vermeij
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Hennig Brand
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It is definitely toxic, but in my case the effects are very rapid from just a tiny whiff of MNT vapor. From reading, I think people’s sensitivity to
a lot of these chemicals varies wildly. I have seen several sources talk about first determining a new munitions plant employee's sensitivity to the
chemical(s) involved (a nitroaromatic of some sort) before deciding if they could in fact work there.
"A risk-free world is a very dull world, one from which we are apt to learn little of consequence." -Geerat Vermeij
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Pard
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I thought I had already posted this but cannot find the post. It is regading a cheddite that uses ammonium perchlorate. It recommends the following:
Ammonium perchlorate (powdered) - 9 ubw
Petroleum jelly - 1 ubw OR
Castor oil - 0.9 ubw OR
Kerosene - 0.9 ubw OR
Diesel oil - 0.9 ubw OR
Cooking oil (any type) - 0.9 ubw
I feel diesal or kerosene will yield best results as it's quite flamable on it's own. I also have dextrin and guar gum, so I may try add a small
amount for to binding.
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Hennig Brand
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Do you have any references? Was there any information from those references about the qualities of the above mixture? Try to resist simply posting
"recipes".
"A risk-free world is a very dull world, one from which we are apt to learn little of consequence." -Geerat Vermeij
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Zyklon-A
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Would adding a few% of Al sensitize it enough that it can be set of from a flash powder?
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Bot0nist
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I really doubt it. You will need a fast primary and maybe even a bit of secondary in a well made cap to work with cheddite. Flash powder wont even
wake up the very sensitive secondaries like ETN reliably. Flash powder is just way to slow.
U.T.F.S.E. and learn the joys of autodidacticism!
Don't judge each day only by the harvest you reap, but also by the seeds you sow.
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Zyklon-A
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Can ETN detonate cheddite, if so how much would be necessary?
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Bot0nist
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Yes it can. That depends in how much, and of what kind of "cheddite" you are talking about. Different compositions vary in sensitivity greatly.
U.T.F.S.E. and learn the joys of autodidacticism!
Don't judge each day only by the harvest you reap, but also by the seeds you sow.
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Zyklon-A
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I'm thinking, just KClO3-Petroleum jelly 9-1 ratio. I've never made ETN before, but I can, I'll make a couple grams I guess.... How long can I store
it, outside of course.
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Bot0nist
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That depends on your neutralization and recrystalizations. As well as inclided stabilizers. Please read up thoroughly on this compound. Quicksilver
has posted a lot of good Info about it in the past.
U.T.F.S.E. and learn the joys of autodidacticism!
Don't judge each day only by the harvest you reap, but also by the seeds you sow.
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Gargamel
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Hey guys,
I've got a stack of homemade chlorate here and I'm ready for some experimentation
There are a few thing about those cheddites bother me, maybe you can enlighten me a little.
The amount of fuel.
It seems like the amount of fuel is independent from stoichiometry, but rather on the fact how wet the stuff is?
Common mixtures for Na and K Chlorate are interchangeable. The extra oxygen of the Na salt does not seem to play any role here...?
According to Urbanski 10% seem to be optimal, but less is more easily detonated.
What's your experience?
Do cheddites benefit from small amounts of metal?
Locking at AN mixtures, even 2% Dark Al in mixtures like GRG1 ect. make a huge difference.
I want a higher Vdet, thermobaric afterburn effects aren't important.
Critical diameter
Any opinion about how slender a charge could be for small boreholes?
Last time I did some testing in 20mm plastic pipes with 9% paraffine oil and detonation was transmitted over 200mm, the damage on the 2mm iron plate
was constant over the hole path.
I wonder how small one can go, and see above, if some aluminium would help...?
Large crystal formation
Vaseline seems to recrystalise the chlorate over time creating large crystals and insensitive cheddite.
Is there reason to believe that this happen with paraffine oil too?
[Edited on 2-11-2014 by Gargamel]
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forgotpassword
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Success! 165 grams of Cheddite(Vaseline and Potassium Chlorate9:1) with a 3g ETN booster detonated just half an hour ago.
<iframe sandbox width="420" height="315" src="//www.youtube.com/embed/tRBT-RuQB3I" frameborder="0" allowfullscreen></iframe>
<a href="http://imgur.com/VDyteWz"><img src="http://i.imgur.com/VDyteWz.jpg" title="source: imgur.com" /></a>
[Edited on 2-11-2014 by forgotpassword]
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Laboratory of Liptakov
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failure
This photo does not say anything about the performance of explosives. It was a detonation? Or just a deflagration? The bomb did not explode. I see
sprayed chlorate. 165 grams of explosive with a VoD 3000 m/s must break the chair concrete curb. This is a failure. No success.
LL
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forgotpassword
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It was propped up against the curb, that is not sprayed chlorate, that is bits of concrete/ tarmac/ dirt that was sprayed onto the road.
Watch the video again and tell me that was not a detonation.
You obviously do not know what you are talking about, how could that have possibly been a deflagration?
[Edited on 2-11-2014 by forgotpassword]
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Metacelsus
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It does look weak for 165 grams of explosive. I agree with LL on this one, in the absence of more conclusive evidence (the video doesn't tell much).
Also, blowing up roads generally isn't a good idea (although if it's a private road and you own it then I guess it's OK).
[Edited on 2-11-2014 by Cheddite Cheese]
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forgotpassword
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I'm not sure then, it looks and it definitely sounded like a full detonation to me.
I can't see no reason why it wouldn't detonate.
You may be underestimating the strength of that concrete curb, look how thick it is.
I used a straw filled with ETN and a little bit of SADS to initiate the ETN.
Then I placed 3 grams of ETN in some Al foil and placed the straw cap in and wrapped the ETN around it tightly.
The actual cheddite was a 9:1 ratio of Potassium Chlorate to Vaseline. The Vaseline was placed in a 600ml beaker and melted and the potassium chlorate
placed in and manually mixed for 20 minutes.
I placed the cheddite into a balloon as seen here:
<a href="http://imgur.com/yAtLG0R"><img src="http://i.imgur.com/yAtLG0R.jpg" title="source: imgur.com" /></a>
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Metacelsus
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I saw the crack in the curb, but I still am not sure that the cheddite had a full detonation. Are you sure that the noise of detonation wasn't just
the noise of the booster detonating? Even small detonations are very loud. (I can't tell myself because shockwaves can't come out of speakers.)
3 grams of ETN might work for confined cheddite, but without confinement it may not be powerful enough. What was your potassium chlorate particle
size? Generally, the finer, the more sensitive. Also, where was the initiator in the ball?
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forgotpassword
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I don't think so, I've done detonations of just a couple of grams of ETN before and it was not as loud as that was, it definitely did not create that
big cloud of smoke.
I grinded up the Potassium Chlorate in a mortar before mixing and I cut a hole in the balloon, dug a little hole for my initiator, placed it in and
pushed far in and then I squeezed the Cheddite together using the palm of my hands. Pretty confined.
Here is 200g of Cheddite another guy did, same type of cheddite as mine, it looks very similar to my explosion.
https://www.youtube.com/watch?v=bBq13OHQFnU&t=4m40s
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Laboratory of Liptakov
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weak
Forgot: The preparation is good. Central initiation good. However: All the work done only 3 grams ETN. The 3 grams ETN brought to detonation by about
10% cheddite. Max 20 g detonated VOD 3000 m / s. Everything else was a deflagration. It is a pity application 3G ETN. Another thing: You need to get (
have, used) NH4NO3. This is the foundation. Cheddite production are dangerous. And they have a weak performance. This is clearly seen.
LL
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Laboratory of Liptakov
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deformator
If you can, do this:
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forgotpassword
Harmless
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I thought 3g of ETN would be more than sufficient to set it off.
What do you suggest using?
I don't have access to Ammonium Nitrate, terrorist organisations use it in fertiliser bombs here.
I don't think my cheddite would deflagrade without strong heating, I have tested this before.
Where are you getting that number from, 3000m/s? That could be for other cheddites such as Kerosene and KClO3 or as you said NH4NO3.
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caterpillar
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Quote: Originally posted by Hennig Brand  | I am learning more about Russian culture all the time.
Didn't know about the OCR thing actually until earlier today, as I don't do a lot of translation usually. The few programs I tried first didn't seem
to be able to deal with that particular text. I just found a method that works to translate the document. Convert the pages to jpeg images, then load
images into this Russian OCR text extractor. http://www.i2ocr.com/free-online-russian-ocr
The obtained text can be copy/pasted into a translator. I used Google Translate, but there are probably better ones. I can get the meaning out of most
of the translation, but it's not exactly perfect English.
[Edited on 9-1-2014 by Hennig Brand] |
My friend maniac scientist Misha (this person made NG in large amounts) recommended translator from Microsoft. he told me that translators from
Russian to English generally work better than opposite ones. I can only say that I never saw good translation to Russian, made with the aid of an
automatic translator.
Women are more perilous sometimes, than any hi explosive.
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Hennig Brand
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I think you are right about the translators; at least from what I have seen.
http://www.sciencemadness.org/talk/viewthread.php?tid=19712&...
What is linked to is something I posted back on page three of this thread. The potassium chlorate and Vaseline Cheddite is not an ideal explosive like
TNT and most of the other military explosives. Comparing a Cheddite (or ANFO) to the more ideal explosives is comparing apples to oranges. Many things
effect the detonation velocity of a Cheddite. Cheddites in general have very low brisance and pore shattering ability, in comparison to modern
military explosives, even when they do detonate properly. With strong confinement, like what is typically found in a bore hole, Cheddite explosives
can do a lot of useful work. However, because of their low brisance produce very poor results when used on hard targets unconfined. It is possible
that the un-ideal Cheddite being tested detonated at a velocity considerably less than 3000m/s as well.
Cheddites are a poor practical choice if better explosives are available, but there have been places and times when not much else was available. I
find Cheddites interesting.
[Edited on 4-11-2014 by Hennig Brand]
"A risk-free world is a very dull world, one from which we are apt to learn little of consequence." -Geerat Vermeij
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Laboratory of Liptakov
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cheddite
Henning is right. An attempt was made. Everything is in the picture. Cheddite is weak explosive. Paraffin is better of grease. I used the soot from
the chimney. Paraffin dissolve in clear gasoline. When 40C. Add KClO3 + fine soot. Shaken. Pour into the pan and dried at 50C. Hand pressed the tube.
Full detonation from No.10. But poor performance on the mat, sheet metal. Below is a comparison composition based on AP. Another needless words.
LL
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