Pages:
1
..
74
75
76
77
78
79 |
Rainwater
National Hazard
![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif)
Posts: 867
Registered: 22-12-2021
Member Is Offline
Mood: indisposition to activity
|
|
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
|
"You can't do that" - challenge accepted
|
|
Dornier 335A
Hazard to Others
![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif)
Posts: 231
Registered: 10-5-2013
Location: Northern Europe
Member Is Offline
Mood: No Mood
|
|
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.
|
|
MineMan
National Hazard
![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif)
Posts: 998
Registered: 29-3-2015
Member Is Offline
Mood: No Mood
|
|
Quote: Originally posted by Dornier 335A ![](images/xpblue/lastpost.gif) | 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 )
|
|
EF2000
Hazard to Others
![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif)
Posts: 148
Registered: 10-5-2023
Location: The Steppes
Member Is Offline
Mood: Taste testing the Tonka fuel
|
|
Quote: Originally posted by Dornier 335A ![](images/xpblue/lastpost.gif) | 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?
|
|
yobbo II
National Hazard
![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif)
Posts: 728
Registered: 28-3-2016
Member Is Offline
Mood: No Mood
|
|
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]
|
|
dettoo456
Hazard to Others
![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif)
Posts: 223
Registered: 12-9-2021
Member Is Offline
|
|
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.
|
|
B(a)P
International Hazard
![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif)
Posts: 1139
Registered: 29-9-2019
Member Is Offline
Mood: Festive
|
|
Quote: Originally posted by dettoo456 ![](images/xpblue/lastpost.gif) | 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.
|
|
dettoo456
Hazard to Others
![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif)
Posts: 223
Registered: 12-9-2021
Member Is Offline
|
|
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]
|
|
B(a)P
International Hazard
![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif)
Posts: 1139
Registered: 29-9-2019
Member Is Offline
Mood: Festive
|
|
Quote: Originally posted by dettoo456 ![](images/xpblue/lastpost.gif) | 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]
|
|
Rainwater
National Hazard
![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif)
Posts: 867
Registered: 22-12-2021
Member Is Offline
Mood: indisposition to activity
|
|
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.
"You can't do that" - challenge accepted
|
|
dettoo456
Hazard to Others
![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif)
Posts: 223
Registered: 12-9-2021
Member Is Offline
|
|
Attachment: IMG_1524.mov (6.2MB) This file has been downloaded 204 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.
|
|
B(a)P
International Hazard
![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif)
Posts: 1139
Registered: 29-9-2019
Member Is Offline
Mood: Festive
|
|
Quote: Originally posted by dettoo456 ![](images/xpblue/lastpost.gif) |
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?
|
|
Dornier 335A
Hazard to Others
![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif)
Posts: 231
Registered: 10-5-2013
Location: Northern Europe
Member Is Offline
Mood: No Mood
|
|
Quote: Originally posted by EF2000 ![](images/xpblue/lastpost.gif) |
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.
|
|
EF2000
Hazard to Others
![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif)
Posts: 148
Registered: 10-5-2023
Location: The Steppes
Member Is Offline
Mood: Taste testing the Tonka fuel
|
|
Quote: Originally posted by Dornier 335A ![](images/xpblue/lastpost.gif) |
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.
|
|
B(a)P
International Hazard
![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif)
Posts: 1139
Registered: 29-9-2019
Member Is Offline
Mood: Festive
|
|
Quote: Originally posted by EF2000 ![](images/xpblue/lastpost.gif) |
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.
|
|
EF2000
Hazard to Others
![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif)
Posts: 148
Registered: 10-5-2023
Location: The Steppes
Member Is Offline
Mood: Taste testing the Tonka fuel
|
|
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.
|
|
OneEyedPyro
Hazard to Others
![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif)
Posts: 280
Registered: 7-10-2015
Member Is Offline
Mood: No Mood
|
|
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.
|
|
MineMan
National Hazard
![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif)
Posts: 998
Registered: 29-3-2015
Member Is Offline
Mood: No Mood
|
|
Quote: Originally posted by OneEyedPyro ![](images/xpblue/lastpost.gif) | 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
|
|
OneEyedPyro
Hazard to Others
![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif)
Posts: 280
Registered: 7-10-2015
Member Is Offline
Mood: No Mood
|
|
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.
|
|
MineMan
National Hazard
![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif)
Posts: 998
Registered: 29-3-2015
Member Is Offline
Mood: No Mood
|
|
Quote: Originally posted by OneEyedPyro ![](images/xpblue/lastpost.gif) |
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.
|
|
DennyDevHE77
Hazard to Others
![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif)
Posts: 165
Registered: 15-9-2014
Member Is Offline
Mood: No Mood
|
|
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)
|
|
PLSHY
Hazard to Self
![*](images/xpblue/star.gif)
Posts: 88
Registered: 30-7-2023
Member Is Offline
|
|
Quote: Originally posted by OneEyedPyro ![](images/xpblue/lastpost.gif) | 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]
|
|
Bender84
Harmless
Posts: 31
Registered: 24-3-2016
Member Is Offline
Mood: No Mood
|
|
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]
|
|
Microtek
National Hazard
![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif) ![*](images/xpblue/star.gif)
Posts: 849
Registered: 23-9-2002
Member Is Offline
Mood: No Mood
|
|
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.
|
|
knowledgevschaos
Harmless
Posts: 34
Registered: 9-8-2023
Location: Sci-Hub and the hardware store
Member Is Offline
Mood: Hungry for information
|
|
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.
|
|
Pages:
1
..
74
75
76
77
78
79 |