| Pages:
1
..
69
70
71
72
73
..
78 |
underground
National Hazard
Posts: 692
Registered: 10-10-2013
Location: Europe
Member Is Offline
|
|
ETN vs PETN
I did some tests with both ETN and PETN and for some reason, ETN was always more powerfull-brisant than PETN. ETN got a few % of vaseline too. The
containers were exactly the same and i hand-pressed them as much as i could. I thought PETN was more powerfull but ETN just did more damage and
penetrate even further. It was a small scale test like 4g, maybe ETN is more bristant than PETN but PETN may be better in bigger quantities.
[Edited on 26-12-2019 by underground]
|
|
|
Microtek
National Hazard
Posts: 827
Registered: 23-9-2002
Member Is Offline
Mood: No Mood
|
|
Have you checked the purity of the two? Melting point and TLC are good places to start.
|
|
|
underground
National Hazard
Posts: 692
Registered: 10-10-2013
Location: Europe
Member Is Offline
|
|
I just remembered that PETN was not recrystallized while ETN was. I just recrystallized a few gr of PETN and now it's drying. I will give it a try
again.
|
|
|
georgef2545
Harmless
Posts: 6
Registered: 12-11-2019
Member Is Offline
|
|
Methylhydrazine as a ligand?
I appreciate that methylhydrazine, dimethylhydrazine etc are horrible flammable and toxic, react hypergolically with oxidisers, but I was wondering if
using it as a ligand in a metal complex explosive would make a good primary explosive? For example complexing it with nickel nitrate or chlorate?
I do acknowledge that organohydrazine compounds are often very dangerous and this is probably stupid.
|
|
|
Herr Haber
International Hazard
Posts: 1236
Registered: 29-1-2016
Member Is Offline
Mood: No Mood
|
|
Quote: Originally posted by georgef2545  | I appreciate that methylhydrazine, dimethylhydrazine etc are horrible flammable and toxic, react hypergolically with oxidisers, but I was wondering if
using it as a ligand in a metal complex explosive would make a good primary explosive? For example complexing it with nickel nitrate or chlorate?
I do acknowledge that organohydrazine compounds are often very dangerous and this is probably stupid. |
Search the forum for nickel hydrazine nitrate / perchlorate
You'll see there is quite a lot of interesting compounds in addition to NHN.
The spirit of adventure was upon me. Having nitric acid and copper, I had only to learn what the words 'act upon' meant. - Ira Remsen
|
|
|
FeedMe94
Hazard to Self
Posts: 87
Registered: 1-4-2017
Member Is Offline
Mood: No Mood
|
|
Is there any subreddit for energetic materials?
|
|
|
B(a)P
International Hazard
Posts: 1110
Registered: 29-9-2019
Member Is Offline
Mood: Festive
|
|
The youtube channel explosions and fire has one r/ExplosionsAndFire
|
|
|
B.D.E
Hazard to Self
Posts: 97
Registered: 5-8-2019
Member Is Offline
Mood: Oscillating
|
|
nevermind, please delete.
apologies.
[Edited on 14-3-2020 by B.D.E]
|
|
|
Brightthermite
Hazard to Others
Posts: 127
Registered: 26-6-2019
Member Is Offline
|
|
Could not find this in any of the other threads, is ETN hygroscopic at all? Has anyone else had experience with it taking multiple days to dry?
Humidity was below 60 % and other things dry just fine.
|
|
|
Katie
Harmless
Posts: 35
Registered: 12-11-2019
Member Is Offline
|
|
Detonating Tannerite/Ammonal
Hi, long time lurker first time poster here!
Can ammonium nitrate / aluminum powder (Tannerite/Ammonal) be detonated with dextrinated lead azide? I’m using commercial brand Tannerite©. Also,
will this be effective in clearing tree trunks and boulders (with tannerite filled boreholes).
I cannot test anything safely in my current location, but I have a vacation home. Unfortunately, I need to blast in the woods and I can’t be at a
safe distance without losing my sight line, so detonating it with a 5.56 round isn’t an option.
I’ve made 2g dex. lead azide blasting caps based on commercial
cap design. This is my first post so I’ll mention that I have taken an explosives safety course approved by ISEE and have lab experience as well. I
use electric blasting caps and a remote firework igniter so I can be at least 100 meters away from any explosion, with surrounding trees completely on
securing the blast site. I’ve also gone through my “kewl bombz” phase when I was younger, and now my interests are in the synthesis and testing
of energetic materials. I hope to eventually work as a chemical engineer designing products that use energetic materials.
|
|
|
Etanol
Hazard to Others
Posts: 124
Registered: 27-2-2012
Member Is Offline
Mood: No Mood
|
|
| Quote: Originally posted by Katie | Hi, long time lurker first time poster here!
Can ammonium nitrate / aluminum powder (Tannerite/Ammonal) be detonated with dextrinated lead azide?
...
I’ve made 2g dex. lead azide blasting caps based on commercial
cap design. |
Yes of course.
What is the density of your lead azide in the blasting cap? Is it more than 2,0 g/cm3 ?
|
|
|
MineMan
National Hazard
Posts: 996
Registered: 29-3-2015
Member Is Offline
Mood: No Mood
|
|
| Quote: Originally posted by Katie | Hi, long time lurker first time poster here!
Can ammonium nitrate / aluminum powder (Tannerite/Ammonal) be detonated with dextrinated lead azide? I’m using commercial brand Tannerite©. Also,
will this be effective in clearing tree trunks and boulders (with tannerite filled boreholes).
I cannot test anything safely in my current location, but I have a vacation home. Unfortunately, I need to blast in the woods and I can’t be at a
safe distance without losing my sight line, so detonating it with a 5.56 round isn’t an option.
I’ve made 2g dex. lead azide blasting caps based on commercial
cap design. This is my first post so I’ll mention that I have taken an explosives safety course approved by ISEE and have lab experience as well. I
use electric blasting caps and a remote firework igniter so I can be at least 100 meters away from any explosion, with surrounding trees completely on
securing the blast site. I’ve also gone through my “kewl bombz” phase when I was younger, and now my interests are in the synthesis and testing
of energetic materials. I hope to eventually work as a chemical engineer designing products that use energetic materials. |
Why LA... so many safer options. Which ISEE course.... are you a student?
How are you going to drill the boreholes. And lastly... why tannerite... think OB.
|
|
|
Katie
Harmless
Posts: 35
Registered: 12-11-2019
Member Is Offline
|
|
| Quote: Originally posted by MineMan | | Quote: Originally posted by Katie | Hi, long time lurker first time poster here!
Can ammonium nitrate / aluminum powder (Tannerite/Ammonal) be detonated with dextrinated lead azide? I’m using commercial brand Tannerite©. Also,
will this be effective in clearing tree trunks and boulders (with tannerite filled boreholes).
I cannot test anything safely in my current location, but I have a vacation home. Unfortunately, I need to blast in the woods and I can’t be at a
safe distance without losing my sight line, so detonating it with a 5.56 round isn’t an option.
I’ve made 2g dex. lead azide blasting caps based on commercial
cap design. This is my first post so I’ll mention that I have taken an explosives safety course approved by ISEE and have lab experience as well. I
use electric blasting caps and a remote firework igniter so I can be at least 100 meters away from any explosion, with surrounding trees completely on
securing the blast site. I’ve also gone through my “kewl bombz” phase when I was younger, and now my interests are in the synthesis and testing
of energetic materials. I hope to eventually work as a chemical engineer designing products that use energetic materials. |
Why LA... so many safer options. Which ISEE course.... are you a student?
How are you going to drill the boreholes. And lastly... why tannerite... think OB. |
The ISEE course was their practical blasting fundamentals course as well as online certificate program. They are great safety classes but mainly
focused on safely using commercial explosives in mining and construction rather that the chemistry behind everything.
I chose dextrinated LA because the reagents were readily available to me and because it has been used in commercial blasting caps. Tannerite because I
have a lot of it for target shooting. What are the safer alternatives for an initiator? I’d like to know for future projects as I will probably make
this a hobby. For the boreholes I have a 1” and 2” by 16” long drill bit and a large two hand power drill. I believe the 1” is a stone bit
designed to work with the hammer drill function. I know they will work on wood but drilling the natural stone will be interesting.
I’m no longer a student but I’ve taken 2 years of general and organic chemistry as well as 2 years of lab based general chemistry, orgo, biology,
and physics courses. I took the ISEE courses in preparation of getting my federal and state explosives manufacturing license for fireworks and black
powder.
I’m definitely interested in the safest primaries that can be made from chemicals available online that will ship to individuals (or synthesized
with hot plates and glassware). So please give me some suggestions!
|
|
|
Katie
Harmless
Posts: 35
Registered: 12-11-2019
Member Is Offline
|
|
“Best” primaries
What do YOU think the “best” primary is in terms of safety, stability, and ease of synthesis? I recently made dex. lead azide but I understand
there are safer alternatives out there that are just as easy to make and just as effective. I’ve seen many mentioned on these forms but I’m having
trouble deciding on which one to use to create a supply of blasting caps that will be stored for up to a year before use (in a proper magazine, of
course!)
|
|
|
B(a)P
International Hazard
Posts: 1110
Registered: 29-9-2019
Member Is Offline
Mood: Festive
|
|
| Quote: Originally posted by Katie | | What do YOU think the “best” primary is in terms of safety, stability, and ease of synthesis? I recently made dex. lead azide but I understand
there are safer alternatives out there that are just as easy to make and just as effective. I’ve seen many mentioned on these forms but I’m having
trouble deciding on which one to use to create a supply of blasting caps that will be stored for up to a year before use (in a proper magazine, of
course!) |
There are a few really good threads on this already.
https://www.sciencemadness.org/whisper/viewthread.php?tid=99...
https://www.sciencemadness.org/whisper/viewthread.php?tid=81...
https://www.sciencemadness.org/whisper/viewthread.php?tid=25...
I would also recommend checking out threads on NHN and CHP
https://www.sciencemadness.org/whisper/viewthread.php?tid=15...
Also search for CHP by Laboratory of Liptakov you can also check out their youtube channel
|
|
|
Katie
Harmless
Posts: 35
Registered: 12-11-2019
Member Is Offline
|
|
Thank you everyone for the replies and I apologize for the redundant thread. I’m new here and not used to working with search engines that don’t
have all the magic that google has!
|
|
|
MineMan
National Hazard
Posts: 996
Registered: 29-3-2015
Member Is Offline
Mood: No Mood
|
|
Where is the thread discussing silicone as an alternative to PIB for ETN... ? I think it was discussed recently.
|
|
|
FeedMe94
Hazard to Self
Posts: 87
Registered: 1-4-2017
Member Is Offline
Mood: No Mood
|
|
Is there a way to remove impurities from SADS?
|
|
|
darolf26
Harmless
Posts: 2
Registered: 10-10-2019
Member Is Offline
|
|
Are there any usable primaries containing KClO3 ?
I heard of K3(CN)6Fe mixtures and Armstrong’s mix for insane guys.”, but are there any other.
|
|
|
j_sum1
Administrator
Posts: 6218
Registered: 4-10-2014
Location: Unmoved
Member Is Offline
Mood: Organised
|
|
| Quote: Originally posted by darolf26 | Are there any usable primaries containing KClO3 ?
I heard of K3(CN)6Fe mixtures and Armstrong’s mix for insane guys.”, but are there any other. |
I'm no EM expert but I do have some (negative) experience with Armstrong's mix.
My understanding is that chlorates are to be avoided. While they have historical significance, I believe in every application they have been hazardous
and have been superceded by compounds that are less twitchy and perform better.
Someone more knowledgeable will be by soon to confirm or correct me.
|
|
|
Herr Haber
International Hazard
Posts: 1236
Registered: 29-1-2016
Member Is Offline
Mood: No Mood
|
|
| Quote: Originally posted by darolf26 | Are there any usable primaries containing KClO3 ?
I heard of K3(CN)6Fe mixtures and Armstrong’s mix for insane guys.”, but are there any other. |
10% with mercury fulminate
The spirit of adventure was upon me. Having nitric acid and copper, I had only to learn what the words 'act upon' meant. - Ira Remsen
|
|
|
Brightthermite
Hazard to Others
Posts: 127
Registered: 26-6-2019
Member Is Offline
|
|
Explosive Storage
Is there a threaded dedicated to the storage of explosives and the likes of? Such as container designs and ideas on how to store multiple detonators.
If not would there be and interest in starting one?
|
|
|
monolithic
Hazard to Others
Posts: 435
Registered: 5-3-2018
Member Is Offline
Mood: No Mood
|
|
Are there any good books that cover practical syntheses and applications of energetic materials? I've downloaded a few books but they're more general
and academic in nature. They don't discuss practical considerations like weight ratios for AMMONAL and the importance of aluminum mesh sizes; PLX type
energetics, etc.
|
|
|
RogueRose
International Hazard
Posts: 1585
Registered: 16-6-2014
Member Is Offline
|
|
| Quote: Originally posted by monolithic | | Are there any good books that cover practical syntheses and applications of energetic materials? I've downloaded a few books but they're more general
and academic in nature. They don't discuss practical considerations like weight ratios for AMMONAL and the importance of aluminum mesh sizes; PLX type
energetics, etc. |
I second this. I was looking for some good books on this and some books, manuals or guides on fireworks from fire crackers to mortars to rockets. I'd
be interested in all of them.
|
|
|
Belowzero
Hazard to Others
Posts: 173
Registered: 6-5-2020
Location: Member Is Offline
Member Is Offline
|
|
Urbanski has lot of good info, in depth stuff.
Problem with many of the practical books is that they tend to lean towards cooking instead of science.
This is such an example: http://index-of.es/Miscellanous/Field%20Manufactured%20Explo...
Also a lot of material here: http://pyrobin.com/files.php
[Edited on 26-6-2020 by Belowzero]
|
|
|
| Pages:
1
..
69
70
71
72
73
..
78 |
![[*]](images/xpblue/default_icon.gif){kind=icon}
