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dettoo456
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I don’t believe the glass itself would be able to hold the same (or greater) amount of energy of the detonation products before breaking and
releasing them towards a main charge, though I haven’t done any research into comparing the plastic strain strengths or fracture tolerances of glass
vs aluminum.
Consider that a panel of glass can be broken from one swing of a hammer, whereas that same hammer swing would only dent an aluminum sheet of the same
size &/or weight. The aluminum can just tolerate more plastic strain before critically failing, and thus an aluminum cap would be able to store
more detonation gases/products before expelling them towards a main charge; meaning more energy to be directed at your booster.
And please do not assume that your glass caps would simply be transported or made safely. Catastrophic events usually occur when people think they are
safe and prepared. A suspicious, paranoid, and pessimistic outlook isn’t socially preferable but it is indispensable when dealing with explosives
and their manufacture.
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dettoo456
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Pardon my ignorance if I’m repeating a past inquiry, but does anyone know of any current transcriptions or general literary archives of
energetic-related YouTube videos? I think transcriptions of some of Dugan’s, DBX Labs, Ex&F, and others’ videos could be very useful if
properly compiled (with important screenshots where needed).
If anyone has already started I’d be glad to help in any way I can, or if not, I was planning on starting myself with Dugan’s recent
‘Detonators’ video just for my own.
Of course the military docs, scientific pubs, and patents are highly regarded (as they should be), but documentation of the amateur experimentation is
in my opinion, just as valuable to the amateur.
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Metsestra
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May I ask you (members) what type of PIB you use for plastification PETN? Can you describe technic? - cause I'm not sure that it is only enough PIB.
Is it possible to try with PIB32? Or need only PIB150 or PIB200?
What about Silicone oil viscosity 10.000-20.000? Found some patent about it, but not sure about good result - I received not plastic mass, it is more
close to pasta, dough.
Another question: what type of mortar do you use? Porcelain, plastic or wood?
And one more question: is it true that plastic mass will be more high density (as you describe 1.56-1.59) then just pressed PETN (with water, after
drying). Maybe we can receive higher density after pressing with small amount of acetone - or it is much more dangerous then water?
Sorry, English is not my native language.
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Laboratory of Liptakov
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How to make quality binder (plasticizer) https://www.youtube.com/watch?v=euVUa7C5rAM&t=50s
Behaviour quality PIB in gasoline at 10.3%
https://www.youtube.com/watch?v=hB8mdSSKPoE
........
Development of primarily - secondary substances: CHP (2015) neutral CHP and Lithex (2022) Brightelite (2023) Nitrocelite and KC primer (2024) Diper
60 (2025)
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Metsestra
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Nice channel - will subscribe it for sure!
Glory to Ukraine!
Sorry, English is not my native language.
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RogueRose
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Do you have any other channels on other sites that may have your video's? I seem to recall you having many more video's than what is available on YT.
I'm guessing the ones I'm thinking about have been taken down. Do you have any other sites you post on? Fell free to PM/DM me is you don't want to
post it publicly. Thank you!
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Metsestra
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I got question about that rubber stripe in gasoline (heptane). How long need to wait to move all PIB from stripe to solution? If I measure
concentration after 5 days - will it be the same after 10 days? Maybe better to remove stripe after some time?
[Edited on 24-11-2024 by Metsestra]
Sorry, English is not my native language.
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Laboratory of Liptakov
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Step 1: After 10 days, remove the strip in gloves and run it between your fingers. Measure the concentration and write it on the jar.
Step 2: Place the used strip in a new jar and add the appropriate amount of heptane for secondary PIB dissolving.
Repeat Step 1 after 10 days.....
Development of primarily - secondary substances: CHP (2015) neutral CHP and Lithex (2022) Brightelite (2023) Nitrocelite and KC primer (2024) Diper
60 (2025)
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Metsestra
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Quote: Originally posted by Laboratory of Liptakov  | Step 1: After 10 days, remove the strip in gloves and run it between your fingers. Measure the concentration and write it on the jar.
Step 2: Place the used strip in a new jar and add the appropriate amount of heptane for secondary PIB dissolving.
Repeat Step 1 after 10 days..... |
Oh..ok ok...now I understand that heptane can accept only some part of PIB. Maybe 7-8%. Am I right?
Maybe better to use bigger amount of heptane to use all PIB in stripe? Did you calculate it?
Sorry, English is not my native language.
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Laboratory of Liptakov
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You can try it. But methode from video is optimal.
Development of primarily - secondary substances: CHP (2015) neutral CHP and Lithex (2022) Brightelite (2023) Nitrocelite and KC primer (2024) Diper
60 (2025)
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greenlight
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Just out of curiosity, has anyone here ever subscribed to the international journal of propellants, explosives and pyrotechnics?
It is quite pricey for just a years subscription and I'm not sure they would even send it to non institutions or organisations.
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dettoo456
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Some here may still have access via university accounts. I’d recommend asking for specific articles here on SM or on the Ex&F discord. I’ve
only ever used Sci-hub which pulls those PEP articles around 1-1.5yrs after their publication.
In my opinion, none of the Wiley, elsevier, springer, etc. journals are ever worth the prices they ask for. If some hardcover versions were published
that may be enticing, but pdfs are not worth more than $1 per, especially considering how easy they are to pirate and how wealthy those publishers are
anyways.
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greenlight
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| Quote: Originally posted by dettoo456 | Some here may still have access via university accounts. I’d recommend asking for specific articles here on SM or on the Ex&F discord. I’ve
only ever used Sci-hub which pulls those PEP articles around 1-1.5yrs after their publication.
In my opinion, none of the Wiley, elsevier, springer, etc. journals are ever worth the prices they ask for. If some hardcover versions were published
that may be enticing, but pdfs are not worth more than $1 per, especially considering how easy they are to pirate and how wealthy those publishers are
anyways. |
Thankyou! I just checked out scihub and already found a few papers that I haven't been able to access before by pasting the DOI numbers in to their
search engine. That's a really handy site!
After that, I agree, it wouldn't be worth purchasing unless a sort of hard cover compendium was ever released full of different interesting articles
and papers.
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MineMan
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Are these velocities and pressures really realistic? My understanding is organic explosives cannot exceed 10.5kms due to simulations and EOSs.
https://www.sciencedirect.com/science/article/abs/pii/S22102...
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MineMan
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Are any of the high nitrogen pressure synthesized explosives metastable?
https://phys.org/news/2024-03-nitrogen-based-compounds-high-...
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dettoo456
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No
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underground
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Could dilute sulphuric acid got concentrated up through evaporation ? For example battery acid is about 30% SA. Would it concentrate if you just leave
it there into a big glass dish ? If yes, how much is the maximum concentration that can be achieved this way ?
I know SA is hygroscopic but untill what concentrations ?
[Edited on 2-4-2025 by underground]
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Precipitates
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No
Apparently sulfuric acid is hygroscopic (i.e., absorbs water), down to concentrations less than 10%*
So you will just dilute your sulfuric acid as it absorbs water vapour from the air.
I'm sure someone tried this on here once, but can't find the original post - this idea sounds familiar anyway!
Just boil it.
*At least according to Wiki, but sounds reasonable.
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dettoo456
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I believe it is widely known that people looking to procure AN these days are usually forced to prepare it through metathesis of NH4SO4 + Ca(NO3)2 or
through a convoluted series of reactions of CAN to release AN from the double salt. Now I know that AN is the preferred material for nitrations, even
over WFNA in most cases to avoid storing WFNA in a freezer, but for those just looking to use the AN directly such as in ANFO, ANSU, Ammonal, etc., is
there any reason why CAN itself isn’t just used (assuming it’s available)?
I found this doc (attached below) a while ago that reports that the PIRA apparently used CAN/SU for at least some of their *activities* during the
troubles, and if the data reported is correct, it is no wonder why. The VODs and peak pressures of the 11/1 W/W CAN/SU charges are decently similar to
those of ANFO charges (barring the booster design differences). Also, apparently only a 0.227% W/W of booster/total charge mass was required for the
1000kg CAN/SU firing. Obviously at a 1-ton scale, booster sizes can be lowered simply due to exceeded critical diameters, but even so, this
information seems outlandish. Results would almost certainly differ for amateurs using a 1kg CAN/SU charge for example, but by how much if the results
in this report are actually accurate?
Am I missing something?
[Edited on 13-4-2025 by dettoo456]
Attachment: 1997 FEL Large Charge Firings.pdf (3.2MB)
This file has been downloaded 41 times
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HeinzBeans
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Hello, I have a few questions about dinitrogen tetroxide and its uses since I recently found a cheap and accessible way to make fairly large amounts.
1)
Can N2O4 be directly used as a nitration/nitrolysis agent? As in a direct replacement for HNO3? I am aware that dinitrogen pentoxide can but have
heard very little about the tetroxide which is far easier to make in bulk (condensation of 2 NO2 groups at low temps). Unless I am missing something I
don’t see why it wouldn’t work, but I have found very little info on this.
2)
If it can indeed nitrate things would it be feasible to use it whilst dissolved in a solvent such as dichloromethane for lower temperature reactions?
My thinking behind this is that since N2O4 freezes at -11c dissolving it in a solvent with a much lower freezing point (DCM -96c) would lower the
overall freezing temp. The reason I ask this is cause I’m interested in producing potassium dinitramide and other dinitramide salts in the future
which require very cold conditions (-30 to -40c) and using N2O4 (if it works) would be cheaper than fuming HNO3 it seems.
3)
From what I have heard when reacted with water N2O4 forms nitric/nitrous acid, along with some nitric oxide, the nitrous acid then presumably oxidises
into nitric acid after a while. If this is so could N2O4 potentially be used as a kind of desiccant? For example if pure N2O4 was added to azeotropic
nitric acid would the N2O4 react with the excess water forming more nitric acid and therefor concentrating the nitric acid? Perhaps fuming nitric acid
could be easily produced from azeotropic nitric acid this way.
4)
And finally if N2O4 does not indeed work as I had hoped, does anyone know of an effective way of converting it to the pentoxide? I know that N2O5 can
be formed by reacting ozone and nitrogen dioxide and I assume that dinitrogen tetroxide would react with ozone to form the pentoxide too, but could
some other method that doesn’t use ozone work?
Anyway, I know I have asked a lot but these questions have really been bugging me for a while, and I have found little info about it. So if any
reaction savvy people want to help please do, thank you 
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Axt
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NO2 will enter into a lot of interesting reactions but not in the way you are thinking. Nitrations generally require the nitronium ion NO2+, not NO2
per se. It can and will react with many things, often producing nitro derivatives but in more complex ways. For example if you were to just react
toluene with NO2 you would expect a variety of nitro and oxidation products from nitro toluene to nitro phenols, benzoic acid and ultimately oxalic
acid, in other words; a mess.
It can be used however, NO2 will directly add to olefins to form the corresponding dinitro compounds. NO2 will also react with sodium acetate to form
acetic anhydride, one of the most useful dehydrating agents.
2CH3COONa + 2N2O4 -> (CH3CO)2O + 2NaNO3 + N2O3
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dettoo456
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I’m assuming your method to produce the N2O4 is from alkaline earth nitrate thermal degradation under vacuum & cryocooling. If not, I’d be
interested to know if you’re willing to share. In any case, the N2O4 is very useful as long as you can store it like you mentioned. DCM at low temps
with a low conc% of N2O4 should store well enough.
Oxidation with Ozone to N2O5 is the easiest way to produce N2O5, the other being electrolysis of liquid N2O4 which I don’t believe is easier.
Don’t try bubbling Ozone into a DCM solution though, you’d be asking for a random detonation or potential oxidation to phosgene.
The N2O4 reaction with water (or azeo HNO3) will produce NO + HNO3, so it is a suitable way to produce HNO3 of high purity, but the NO will want to
stay dissolved in your acid and cause issues with nitrations.
A better way to dry HNO3 is with PPA, which can simply be boiled to regenerate/dry, as opposed to H2SO4 which requires distillation to bring back to
98%.
The Kyodai Nitration is the only reaction I know of that uses N2O4 directly, and that uses Ozone as a co-reactant anyways.
[Edited on 12-5-2025 by dettoo456]
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