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Rainwater
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[*] posted on 11-7-2023 at 07:34


Nice find
Code:
youtube user Dornier335AVideo Item Preview 1 1,3,5-Trichlorohexahydrotriazine-6ssW1fypU7E 00:57 2 30 milligram HE FP (High Explosive Flash Powder)-omjlv9iWGe4 00:25 3 55 gram flash powder explosion - Mg NaNO3 C-CKsfaxj8c2g 01:53 4 Ammonium Chlorate (NH4ClO3)-T59J0GjqfXc 01:26 5 Armstrong's Mixture + Ferrocerium - Extremely Powerful-WWPamyEQclM 02:06 6 Armstrong's Mixture + Ferrocerium Detonations-6vnQadeGVD8 01:24 7 Armstrong's Mixture - KClO3, KClO4, KMnO4 and KBrO3-F4lkPn1QQr4 01:33 8 Armstrong's mixture + ferrocerium - different ratios-7EhLMaVA3lw 02:49 9 Armstrong's mixture vs Mg NaNO3 flash powder-zv7i5A45zio 02:22 10 Burning Oxyliquit (Liquid Oxygen Explosives)-3Pr6dyaH17w 02:07 11 Chlorate Based Whistle Mix (part 1)-ptDgmk4pevs 01:15 12 Coloured Flash Powder - Red, Yellow, Green & Blue!-Dz cPOmviU8 02:27 13 Comparison of Burst Compositions-biOZbtc Wvs 02:18 14 Copper Acetylide-y2RNQczD0f8 01:24 15 Copper sulfate magnesium flash powder (CuSO4 Mg)-k6n3-rZOzPk 01:35 16 Copper(II) 5-Azidotetrazolate-Bdtl4-vABUw 01:01 17 CuO Mg thermite-4I0HQu-38sw 01:14 18 Detonator initiated super flash powder (0,05 gram)-ubyCi 7FRQs 01:57 19 Ditetrazolylhexaazadiene - Nitrogen Rich Super Explosive-qVZT5aR3ih0 01:59 20 Dragon's eggs (crackling microstars) in slow motion-2zceUUs R20 02:05 21 Exploding Ferrocerium Flint (High Speed)-375f2SqU6g0 00:34 22 Extremely Powerful Super Flash Powder - 5 milligrams-3k9QDhjVZDA 00:44 23 Fe2O3 Mg thermite-pqQg4R8XRXY 00:50 24 Ferrocerium Based Super Flash Powder - Detonation Test-d7BST4XpF5s 02:01 25 Filming Flash Powder with an Optical Filter-6EZS-OQ0Flw 01:13 26 Flash Powder Comparison - KClO3 Al vs KClO4 Al-N3PXxxptZzA 02:34 27 Flash powder and flour explosions (High speed)-GdF2xAmsQlg 01:11 28 Flash powder with silver and golden sparks-eN2xKceRjDw 01:32 29 Flash powder with water as oxidizer!-ix-OTDv0i8s 01:55 30 Golden Powder and Crimson Powder-Usb6tjrjY1g 01:00 31 High Density Armstrong's Mixture-ixr JHIW 8 01:05 32 Homemade Det Cord-LYMyPZVweyY 03:32 33 How to build a salute shell-UaCUF0asJvI 03:32 33 How to build a salute shell-UaCUF0asJvI 03:25 34 How to make super fine powdered magnesium and aluminium powder (1 micron)-JeMeRhgKFsk 00:49 35 Magnesium Flash Powder Comparison-b1tBxJXoxwo 01:01 36 Magnesium Teflon Flash powder (Mg PTFE)-WDXs3B51GH8 01:00 37 Magnesium sodium nitrate flash powder - 100 µm vs 1 µm-l-FETdncn3I 00:29 38 Magnesium and snow flash powder!- 19a5Tps2C8 00:20 39 Magnesium based yellow star-UGzFV3WDYAQ 04:10 40 Manganese Heptoxide, Mn2O7 [high speed]-7urXzTegEIc 02:58 41 Metal Picrates - Properties and Mixtures-txWSNvw4i8o 01:57 42 Mg KClO3 Flash Powder-Y5JjpjwaSWo 00:27 43 Mg NaNO3 C Flash Powder - 20 milligrams- WV FUz-kZc 02:08 44 Mg NaNO3 flash powder - different ratios-4DkOY0qMXe0 00:31 45 Minecraft - TNT in real life-1ZxQSxKoruM 02:40 46 Mini missile with HEAT warhead-Y1Jdc5JrTk0 01:44 47 Molten Whistle Mix (part 2)-ZRHCnOhx7kU 02:13 48 More Mg NaNO3 flash powder sensitivity tests-spT2vvOZlvc 00:12 49 My first 0.5 Inch Aerial Shell-vHqjGWsHa3A 01:50 50 NaNO3 Flash Powder, KClO3 Flash Powder, Black Powder and H3 Comparison-esQ4G1a519o 00:27 51 NaNO3 Mg ferrocerium flash powder-o9p3-j1CTnc 02:11 52 Nano Armstrong's Mixture - Properties and Sensitivity-UAmJ6QWHmTg 01:28 53 Nano Armstrong's Mixture-bSQIMXuyC8M 01:56 54 Nano Flash Powder - KClO3 MgAl-mpr1MWE1B8I 01:06 55 Nano Flash Powder - KClO4 Mg-HgsLsKlDwpE 01:00 56 Nano Flash Powder - Mg NaNO3-Zr02r-dqSp4 00:30 57 Nano-thermite (super-thermite) 0,05 g-dShGYuU Wks 00:35 58 New black match test-BWLuIWbmlR4 00:37 59 Nitrogen Triiodide (NI3 NH3)-5LaVRNKqBZw 01:34 60 Normal magnalium thermite vs submicron super thermite-61gImPPFRrk 01:11 61 One year of pyrotechnics-lqFmOz4krao 01:18 62 Potassium Chlorate and Potassium Ferricyanide-Cv0SZZyGgyA 01:17 63 Potassium Nitrate vs Sodium Nitrate - Rocket Candy and Flash Powder-ReDz3wyUYRM 02:47 64 Pure Manganese Heptoxide-gPcfwiJcqSY 03:13 65 Pyromusical-AhQod8Qvjzw 00:52 66 Rare Earth Metal Flash Powders-O3lHX-ayzDQ 03:19 67 Saltpeter sugar smoke bomb vs newspaper smoke bomb-RCTTlrFdSkE 02:21 68 Silver Acetylide vs Armstrong's Mixture REVISITED!-lxqkVwC-bks 02:51 69 Silver acetylide vs Armstrong's mixture + ferrocerium-HNRKuuwsZQQ 03:10 70 Slow motion Water Balloon popping (Canon IXUS 300 HS)-1eGLTPeQSec 00:57 71 Sodium Bismuthate Flash Powder-KvmBYe13SUI 01:00 72 Sodium Persulfate and Magnesium Flash Powder-5HsJE7YrfRg 00:52 73 Sodium nitrate flash powder - Mg NaNO3 vs Mg NaNO3 C-EMP4AOKzK5s 00:32 74 Super Fast Flash Powder (NaNO3 Mg ferrocerium)-NyHsoHoMaLQ 01:11 75 Super Flash Powder - 0.4 g Mg NaNO3 C-3ZS6HvD7dBI 02:07 76 Super Flash Powder - K2S2O8 Mg-G-Pwqvb3yu8 01:16 77 Super Flash Powder - KMnO4 with Mg, Al and MgAl- T8zR-f-9X0 00:48 78 Super Flash Powder - The first high explosive flash powder-GcPedD A0BU 01:13 79 Super Flash Powder Detonation - HE FP-2VsbFHYnXWk 01:19 80 Super Flash Powder Tests - NaNO3 Mg, NaNO3 Mg S, NaNO3 Mg ferrocerium-OvV0e a8KpI 01:22 81 Super Flash Powder Tests - Unconfined-fE2ml9Nb6nk 01:47 82 Super Flash Powder and Armstrong's Mixture Comparison-PyOBFvpbo7c 01:11 83 Tetraamminecopper(II) persulfate (TACPS)-5u7jVVaE-Gg 03:17 84 Tetrazole Madness-WowrwV-0ca8 02:45 85 The HVRCA and my projectile velocity meter-KVQhpTuV46I 01:31 86 The Munroe Effect - Demonstrated with Armstrong's Mixture-SJGq0E6EqYU 01:12 87 The Power of Armstrong's Mixture + Ferrocerium-cLWcjiujJVU 01:09 88 The finest homemade aluminium powder you'll probably ever see-I0-itXJVvZI 01:01 89 Thermite test Fe2O3 Al-5i36DF oyYE 01:39 90 Tiny Fireworks Show 2015-09-25-HAaKiDtoUBk 03:13 91 Two Stage Combustion Light Gas Gun Prototype-JXeUvEVZ3mg 00:49 92 Underwater flash powder explosion-FWOHqeRSVkM 01:01 93 Water Activated Flash Powder - AgNO3 Mg-RcflI gQMYA 01:34 94 Yellow Powder-yJj2shi1kvg 00:52 95 Zinc Flash Powder-qAdAH4G KpM 02:09 96 Zinc Sulfur Rockets-u95g XQh5V0




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Dornier 335A
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[*] posted on 12-7-2023 at 00:28


Neat, I wasn't aware of the backup. Especially since I never had time to reupload all of them myself. The descriptions are unfortunately long gone but I'm happy to answer questions if you have any.
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[*] posted on 12-7-2023 at 02:34


Quote: Originally posted by Dornier 335A  
Neat, I wasn't aware of the backup. Especially since I never had time to reupload all of them myself. The descriptions are unfortunately long gone but I'm happy to answer questions if you have any.



Thanks man!

It’s a pleasure to still have you around :))
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[*] posted on 12-7-2023 at 02:42


Quote: Originally posted by Dornier 335A  
Neat, I wasn't aware of the backup. Especially since I never had time to reupload all of them myself. The descriptions are unfortunately long gone but I'm happy to answer questions if you have any.

It's great that you're still around!
I'm mostly interested in your flash powders compositions. They are really otstanding! So, here's the first question: what is the "High Explosive Flash Powder" (HE FP) from videos #2, #78 and #79? Is it some version of your mainstray super flash powder (Mg+NaNO3+C/FeCe/S...) or something else? If it really detonates, I see a lot of potential uses for it. For example, annular charges in thermobaric warheads (pardon my militarism).
And the second question is about Golden and Crimson powders. Do they explode when heated in confinement, like whistle mix and yellow powder do?
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[*] posted on 14-7-2023 at 04:27


I recognise the sounds of the birds chirriping in the background

Regarding ammonium chlorate. It turnes up in a us navy book of wwI explosives
It was used as a booster mixed with something else. It must be an error. Will post table later.
Called brown powder used by the japanese .

Yob

[Edited on 14-7-2023 by yobbo II]

jap_exp.gif - 205kB
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[*] posted on 22-7-2023 at 09:45


It might just be an impurity in my 5-ATz or nitrite or H2SO4, but for some reason whenever I run a recryst on NaNTz in acetone, my stir bar and PTFE stir rod always start to degrade and fall apart on contact with the hot NaNTz/acetone sol. I use acetone to extract NaNTz from a dry, crude rxn mix containing Na sulfate and bisulfate with small amounts of sulfuric and nitrous acid left in. I then decant the acetone and let the NaNTz drop out. Whenever the acetone and NaNTz mix together though, and come on contact with anything ptfe, they immediately cause the outer surface to slide off and turn into a gummy, almost soluble (in acetone) blob. The PTFE slightly resembles styrene in gasoline - sticky and pliable but still with some definite form. The reaction also occurs slightly during the 5-ATz nitrosation reaction in water, but to a much lesser degree and only when the mix is hot and acid conc is high.

This issue with the teflon has happened to me multiple times and I can attest to the purity of the NaNTz - although I haven’t tried to see if the same thing happens for other 5-NTz salts in any other solvents.

Has this ever happened to anyone else? Running energetic synths in non-glass/metallic vessels is really important and it’s annoying that this incompatibility could pose a real issue.
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[*] posted on 22-7-2023 at 12:56


Quote: Originally posted by dettoo456  
It might just be an impurity in my 5-ATz or nitrite or H2SO4, but for some reason whenever I run a recryst on NaNTz in acetone, my stir bar and PTFE stir rod always start to degrade and fall apart on contact with the hot NaNTz/acetone sol. I use acetone to extract NaNTz from a dry, crude rxn mix containing Na sulfate and bisulfate with small amounts of sulfuric and nitrous acid left in. I then decant the acetone and let the NaNTz drop out. Whenever the acetone and NaNTz mix together though, and come on contact with anything ptfe, they immediately cause the outer surface to slide off and turn into a gummy, almost soluble (in acetone) blob. The PTFE slightly resembles styrene in gasoline - sticky and pliable but still with some definite form. The reaction also occurs slightly during the 5-ATz nitrosation reaction in water, but to a much lesser degree and only when the mix is hot and acid conc is high.

This issue with the teflon has happened to me multiple times and I can attest to the purity of the NaNTz - although I haven’t tried to see if the same thing happens for other 5-NTz salts in any other solvents.

Has this ever happened to anyone else? Running energetic synths in non-glass/metallic vessels is really important and it’s annoying that this incompatibility could pose a real issue.


I have never had nor heard of this issue before. Did all of your stir bars come from the same place? Was it a reputable source?
While I have not had hot acetone/NaNTz in contact with my stir bars, I have had hot acidic solutions of NaNTz in contact with my stir bars and I have never noticed and degradation or discolouration.
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[*] posted on 23-7-2023 at 12:32


Yes the stir bars are PTFE and the degradation has happened with multiple bars from different sources (vwr, scilogex, and some old second-hand ones). I’ll try to link a video showing it - the warped ptfe is much easier to scrape off the bar (even with a dull metal spatula) and has a springy, elastic/plastic nature.

[Edited on 23-7-2023 by dettoo456]

[Edited on 23-7-2023 by dettoo456]
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[*] posted on 23-7-2023 at 14:11


Quote: Originally posted by dettoo456  
Yes the stir bars are PTFE and the degradation has happened with multiple bars from different sources (vwr, scilogex, and some old second-hand ones). I’ll try to link a video showing it - the warped ptfe is much easier to scrape off the bar (even with a dull metal spatula) and has a springy, elastic/plastic nature.

[Edited on 23-7-2023 by dettoo456]

[Edited on 23-7-2023 by dettoo456]


That is so strange. I have just checked all of my stir bars that may have been in acidic nitrotetrazole solutions and they all look in great condition. I have also just checked all of the tetrazole references I have and I can't find mention of this issue observed by others. Looking forward to hearing if anyone else has experienced/heard of this.

Edit - typo

[Edited on 23-7-2023 by B(a)P]
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[*] posted on 23-7-2023 at 15:54


Making sodium by the nerdrage process, its easy to tell when a stirbar is fake. I had a few simply dissolve and turn my reaction a rusty red. This sounds similar.



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[*] posted on 27-7-2023 at 11:08




Attachment: IMG_1524.mov (6.2MB)
This file has been downloaded 109 times


I had to cut up the video but hopefully this shows some of the properties of the stir bar. The NaNTz solution is orange/yellow but I know for sure that is is pure - any other impurities I can’t deduce.

The PTFE shown is more springy/elastic than normal PTFE (which would usually break clean off of the bar when cut). Also, my dull spatula can’t dig into clean PTFE; not in the case of this degraded PTFE though.
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[*] posted on 27-7-2023 at 12:32


Quote: Originally posted by dettoo456  





I had to cut up the video but hopefully this shows some of the properties of the stir bar. The NaNTz solution is orange/yellow but I know for sure that is is pure - any other impurities I can’t deduce.

The PTFE shown is more springy/elastic than normal PTFE (which would usually break clean off of the bar when cut). Also, my dull spatula can’t dig into clean PTFE; not in the case of this degraded PTFE though.


Wow, you are right the PTFE is totally destroyed! How long and what was the sustained temperature that stir bar was in contact with the NaNTz solution? Is there a chance your stir bars could have been damaged previously from some other experiment?
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[*] posted on 31-7-2023 at 01:24


Quote: Originally posted by EF2000  

It's great that you're still around!
I'm mostly interested in your flash powders compositions. They are really otstanding! So, here's the first question: what is the "High Explosive Flash Powder" (HE FP) from videos #2, #78 and #79? Is it some version of your mainstray super flash powder (Mg+NaNO3+C/FeCe/S...) or something else? If it really detonates, I see a lot of potential uses for it. For example, annular charges in thermobaric warheads (pardon my militarism).
And the second question is about Golden and Crimson powders. Do they explode when heated in confinement, like whistle mix and yellow powder do?


It is a flash with two oxidizers and two fuels: sodium nitrate, potassium chlorate, ferrocerium, and red P. I think the ratio was 25/35/25/15. Obviously quite sensitive, but its biggest problem is the ferrocerium which oxidizes in air. It won't detonate after only a few days. Later, I got several simpler mixtures like Mg/NaNO3 to detonate by simply grinding the powders down to submicron sizes.

Golden/crimson powder is equivalent to black powder in almost every way (except hygroscopicity). The mixture ignites well below its melting point so it doesn't behave like whistle mix or yellow powder.



Some of my old videos are available here:
https://archive.org/details/@dornier335a
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smile.gif posted on 31-7-2023 at 07:08


Quote: Originally posted by Dornier 335A  


It is a flash with two oxidizers and two fuels: sodium nitrate, potassium chlorate, ferrocerium, and red P. I think the ratio was 25/35/25/15. Obviously quite sensitive, but its biggest problem is the ferrocerium which oxidizes in air. It won't detonate after only a few days. Later, I got several simpler mixtures like Mg/NaNO3 to detonate by simply grinding the powders down to submicron sizes.

Thanks for the answers, much appreciated.
I had a suspicion that the first high explosive flash powder must have some serious drawbacks. "The first pancake is a lump" as they say in my country. Since it's basically a mixture of Armstrong's Mixture and flash powder with air-sensitive fuel, any practical use is ruled out.
But Mg/NaNO3 flash powders are very promising. Especially if the extra fine Mg powder is somehow protected from air and moisture. Like linseed oil coating or chromate passivation.
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[*] posted on 31-7-2023 at 14:02


Quote: Originally posted by EF2000  

But Mg/NaNO3 flash powders are very promising. Especially if the extra fine Mg powder is somehow protected from air and moisture. Like linseed oil coating or chromate passivation.


The sodium nitrate is what will need careful protection from moist air.
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[*] posted on 31-7-2023 at 21:02


Quote: Originally posted by B(a)P  

The sodium nitrate is what will need careful protection from moist air.

Of course. Sodium nitrate needs to be protected from becoming moist. And magnesium needs to be protected from reacting with that moisture.
I don't know how to protect both in bulk powder form, but in plastic-binded composition it's easy. For example, silicone binders, used in Bulgarian H-TBX and A-TBX, are both dry and water-proof.
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[*] posted on 9-8-2023 at 01:03


Does anyone know the maximum amount of PETN that can be dissolved in molten TNT? I did some digging but everything seems to refer to either a very low percentage of PETN or a 50/50 mix. I think I recall seeing something from Urbanski or PowerLabs many years back saying that they were effectively miscible, but I'm second guessing myself wondering if it wasn't in reference to ETN/TNT.
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[*] posted on 9-8-2023 at 01:55


Quote: Originally posted by OneEyedPyro  
Does anyone know the maximum amount of PETN that can be dissolved in molten TNT? I did some digging but everything seems to refer to either a very low percentage of PETN or a 50/50 mix. I think I recall seeing something from Urbanski or PowerLabs many years back saying that they were effectively miscible, but I'm second guessing myself wondering if it wasn't in reference to ETN/TNT.


Look up pentolite. Used in blasting boosters
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[*] posted on 9-8-2023 at 02:30


Quote: Originally posted by MineMan  

Look up pentolite. Used in blasting boosters

I have and found only info about common ratios used commercially. I've seen references that the Russians have used a mixture of 75/25 in grenades, mortars, HE projectiles etc but that may just be a suspension of PETN like with Comp B using RDX rather than being fully molten.
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[*] posted on 10-8-2023 at 07:28


Quote: Originally posted by OneEyedPyro  
Quote: Originally posted by MineMan  

Look up pentolite. Used in blasting boosters

I have and found only info about common ratios used commercially. I've seen references that the Russians have used a mixture of 75/25 in grenades, mortars, HE projectiles etc but that may just be a suspension of PETN like with Comp B using RDX rather than being fully molten.


Well that works too. Even water can be used to increase the suspension of energetics and their power.
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[*] posted on 30-10-2023 at 22:46


Quote: Originally posted by OneEyedPyro  
maximum amount of PETN that can be dissolved in molten TNT?


7-14% PETN is dissolved in TNT, the rest will be already as an emulsion. At the same time, such an additive within the limits of solubility makes molten TNT sensitive to primary means of initiation (capsule detonator No 8)
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[*] posted on 2-11-2023 at 18:30


Quote: Originally posted by OneEyedPyro  
Does anyone know the maximum amount of PETN that can be dissolved in molten TNT? I did some digging but everything seems to refer to either a very low percentage of PETN or a 50/50 mix. I think I recall seeing something from Urbanski or PowerLabs many years back saying that they were effectively miscible, but I'm second guessing myself wondering if it wasn't in reference to ETN/TNT.
86.5% tnt and 13.5% petn form a low melting point eutectic with a melting point of 77 degrees Celsius 。When pentolite melts, it is a solid-liquid mixture, not a liquid. And it has only one ratio, that is 50:50

[Edited on 3-11-2023 by PLSHY]
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[*] posted on 4-11-2023 at 09:46


Hello everyone,

Has anyone ever come across any material on the flammability of nitroglycol or nitroglycerin vapors, or the sensitivity (and explosiveness) of these substances' vapors to ESD, for example?

I have only found a study on the flammability of alkyl nitrates vapors (The Inflammation of Alkyl Nitrate Vapours and the Effect of Inert Diluents, by P. Gray and A. D. Yoffe, Proceedings of the Royal Society of London. Series A, Mathematical and Physical Sciences, Vol. 200, No. 1060 (Dec. 22, 1949), pp. 114-124). The authors does mention nitroglycerin vapors in the abstract (which, after all, have a relatively low vapor pressure), but there is no further development of this topic in the text itself.

I would be grateful for pointing me to a source where I could find information on this subject (if such a source exists).

Best regards.

[Edited on 4-11-2023 by Bender84]
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[*] posted on 6-11-2023 at 13:41


I would think that the vapor pressure of NG at least is too low to support combustion, though I haven't seen any papers discussing it.
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[*] posted on 29-11-2023 at 02:18


Hello everyone. This might sound like a dumb question, but why does iron spark on a grinder while aluminium, a more reactive metal, produces no sparks? Thanks.
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