Sciencemadness Discussion Board
Not logged in [Login ]
Go To Bottom

Printable Version  
Author: Subject: Hello, beginner looking for advice!
Motherload
Hazard to Others
***




Posts: 245
Registered: 12-8-2012
Location: Sewer
Member Is Offline

Mood: Shitty

[*] posted on 14-6-2013 at 16:21
Hello, beginner looking for advice!


Sorry but you picked the wrong forum to ask these type of questions about blowing "stuff" up.

Well since this thread is dead ..... I am going to try and salvage it.
I am having a tough time finding chemical delay compositions.
The kind one would find in a flashbang fuse assembly.
From what I understand it needs to put out minimal amount of gas as it is going to be confined in a tube.
Any suggestions ?

[Edited on 15-6-2013 by Motherload]




"Chance favours the prepared mind"
"Fuck It !! We'll do it live !!"
View user's profile View All Posts By User
Finnnicus
National Hazard
****




Posts: 342
Registered: 22-3-2013
Member Is Offline


[*] posted on 14-6-2013 at 20:52


What? What's wrong with this thread? The OP's post disappeared?




View user's profile View All Posts By User
elementcollector1
International Hazard
*****




Posts: 2684
Registered: 28-12-2011
Location: The Known Universe
Member Is Offline

Mood: Molten

[*] posted on 14-6-2013 at 21:02


They do that sometimes. It's annoying, because now we have to send this to Detritus (although we were likely to anyway). This thread is now too impaired to be relevant to anything.



Elements Collected:52/87
Latest Acquired: Cl
Next in Line: Nd
View user's profile View All Posts By User
Peroksit
Harmless
*




Posts: 49
Registered: 5-4-2012
Member Is Offline

Mood: No Mood

[*] posted on 14-6-2013 at 22:42


The thread seen opened by Yzhfdf But first post is Motherload's :D Did Yzhfdf's post delete ?
My guess He opened new thread and from the edite menu deleted own post


[Edited on 15-6-2013 by gamez34]
View user's profile View All Posts By User
Antiswat
International Hazard
*****




Posts: 1633
Registered: 12-12-2012
Location: Dysrope (aka europe)
Member Is Offline

Mood: dangerously practical

[*] posted on 15-6-2013 at 06:24


how.. the..??
motherload: youre the new thread owner! :D




~25 drops = 1mL @dH2O viscocity - STP
Truth is ever growing - but without context theres barely any such.

https://en.wikipedia.org/wiki/Solubility_table
http://www.trimen.pl/witek/calculators/stezenia.html
View user's profile View All Posts By User
Finnnicus
National Hazard
****




Posts: 342
Registered: 22-3-2013
Member Is Offline


[*] posted on 15-6-2013 at 07:09


Congratulations mother load! You've won a thread!



View user's profile View All Posts By User
Motherload
Hazard to Others
***




Posts: 245
Registered: 12-8-2012
Location: Sewer
Member Is Offline

Mood: Shitty

[*] posted on 15-6-2013 at 20:58


He was asking how to make stable high explosives that could be initiated with a 3 watt laser or fuse for blowing stuff up.

Thank you all for the well wishes.
But let's see if we can salvage this thread ....
In regards to my original post that I edited.

[Edited on 16-6-2013 by Motherload]

[Edited on 16-6-2013 by Motherload]




"Chance favours the prepared mind"
"Fuck It !! We'll do it live !!"
View user's profile View All Posts By User
Finnnicus
National Hazard
****




Posts: 342
Registered: 22-3-2013
Member Is Offline


[*] posted on 15-6-2013 at 20:59


What was he talking about? Originally.



View user's profile View All Posts By User
bfesser
Resident Wikipedian
*****




Posts: 2114
Registered: 29-1-2008
Member Is Offline

Mood: No Mood

[*] posted on 16-6-2013 at 14:13


So, this is the level of intelligence in EM, eh? Inane spammery, I say. It's a wonder any of you still have enough fingers remaining to type!

[Edited on 6/16/13 by bfesser]




View user's profile View All Posts By User
golfpro
Banned





Posts: 179
Registered: 18-5-2013
Member Is Offline

Mood: Cap Sensitive

[*] posted on 16-6-2013 at 16:26


Might as well make use of this thread with a question:

So, as far as noise/sound, what is the difference between 5g flashpowder in cardboard tube and 5g ETN in cardboard tube in a pressed state, not melted to max density. Assuming a full detonation. I know ETN explodes with much more speed, but does this always translate to louder explosion? I know there are different kinds of noise, sound that travels farther and whatnot, but I think it is interesting, I would be interested in seeing 5g of ETN detonate next to 5g FP, and then up to 25 grams of ETN and 25g FP side by side, not at the same time aubviously...
View user's profile View All Posts By User
Antiswat
International Hazard
*****




Posts: 1633
Registered: 12-12-2012
Location: Dysrope (aka europe)
Member Is Offline

Mood: dangerously practical

[*] posted on 17-6-2013 at 03:16


yes golfpro..
more energy = more energy as sound
thats why blackpowder is shit for salutes also..

anyways you cannot make a ''stable'' explosive that can be initiated with as little as 3 mW laser, if it can get ignited by that then its unstable AF (:




~25 drops = 1mL @dH2O viscocity - STP
Truth is ever growing - but without context theres barely any such.

https://en.wikipedia.org/wiki/Solubility_table
http://www.trimen.pl/witek/calculators/stezenia.html
View user's profile View All Posts By User
Finnnicus
National Hazard
****




Posts: 342
Registered: 22-3-2013
Member Is Offline


[*] posted on 17-6-2013 at 03:23


AF?



View user's profile View All Posts By User
DrSchnufflez
Hazard to Others
***




Posts: 114
Registered: 22-1-2013
Location: Australia
Member Is Offline

Mood: No Mood

[*] posted on 17-6-2013 at 03:41


I think it stands for "As Fuck" :)
View user's profile View All Posts By User
Finnnicus
National Hazard
****




Posts: 342
Registered: 22-3-2013
Member Is Offline


[*] posted on 17-6-2013 at 04:11


Thanks internet! Why do people not swear? Its the internet for godsakes!



View user's profile View All Posts By User
bfesser
Resident Wikipedian
*****




Posts: 2114
Registered: 29-1-2008
Member Is Offline

Mood: No Mood

[*] posted on 17-6-2013 at 05:04


Because many of you are only 13 or 14 years of age, and are afraid that your mothers will discover your forum accounts and scold you for your choice of wording. Some of us refrain from swearing, because we try to maintain a certain level of decorum and amateur-professionalism (How's that for an oxymoron!?), which lends this forum and/or our bullshit speculation a bit more credibility. When's the last time you saw "lol", "IIRC", or "asshat" printed in <em>Nature</em> or <em>JACS</em>?

[Edited on 7/8/13 by bfesser]




View user's profile View All Posts By User
Motherload
Hazard to Others
***




Posts: 245
Registered: 12-8-2012
Location: Sewer
Member Is Offline

Mood: Shitty

[*] posted on 17-6-2013 at 08:10


Does anyone have any suggestions for time delay comps ??
Look a the first post ....




"Chance favours the prepared mind"
"Fuck It !! We'll do it live !!"
View user's profile View All Posts By User
Finnnicus
National Hazard
****




Posts: 342
Registered: 22-3-2013
Member Is Offline


[*] posted on 17-6-2013 at 09:00


Like gunpowder but chlorate burns pretty slow. Maybe press it?



View user's profile View All Posts By User
Motherload
Hazard to Others
***




Posts: 245
Registered: 12-8-2012
Location: Sewer
Member Is Offline

Mood: Shitty

[*] posted on 18-6-2013 at 19:59


Too much gas. When confined .... burn rate goes dramatically up.
Just like dried toilet paper saturated with KNO3.




"Chance favours the prepared mind"
"Fuck It !! We'll do it live !!"
View user's profile View All Posts By User
chemcam
National Hazard
****




Posts: 423
Registered: 18-2-2013
Location: Atlantis
Member Is Offline

Mood: I will be gone until mid-september, on a work contract.

[*] posted on 18-6-2013 at 23:04


I don't know what kind of time delay you need but strontium nitrate works really well for making slow fuse, it is what I use for delay in my mortar shells. The only demo I have made so far is a piece of paper soaked then dried in it. Here: Strontium Nitrate Paper. You can even use the mix of Sr(NO3)2+KClO4 straight from an emergency roadside flare once you filter out the insoluble stuff, I have a video on that as well somewhere on my channel.





My YouTube Channel: ChemCamTV
IRC Channel: #sciencemadness @ irc.efnet.org
View user's profile Visit user's homepage View All Posts By User
Finnnicus
National Hazard
****




Posts: 342
Registered: 22-3-2013
Member Is Offline


[*] posted on 19-6-2013 at 01:56


My tiny cannon I made used to run on Chlorate, and it didn't burn fast enough! Just sort of 'shhhhhh' for about 2 seconds. Sensitised with a tiny amount of RedP it is more like actual black powder.



View user's profile View All Posts By User
hyfalcon
International Hazard
*****




Posts: 1004
Registered: 29-3-2012
Member Is Offline

Mood: No Mood

[*] posted on 19-6-2013 at 01:59


If I need a delay, I just use a layer of star composition. That mix is designed to burn not deflagrate like BP does. I made the mistake of adding too much in a 1/2" rocket and it ended up nose down in the ground before the report went off. Live and learn I always say.
View user's profile View All Posts By User
Antiswat
International Hazard
*****




Posts: 1633
Registered: 12-12-2012
Location: Dysrope (aka europe)
Member Is Offline

Mood: dangerously practical

[*] posted on 19-6-2013 at 05:22


for delay you can use rocket candy, but you wanna coat the tip of this with something more senstive to heat (perhaps rocket candy: golden powder 1:1 by volume)

if you use 19.5 KNO3 7.5 Sucrose 3 Sirup by weight
at one point during heating of this +100*C when it cools down you will realise its still relatively soft, meaning it will be quite easy to press to fit tubes of any kind more than just easily..
you could put a little hole in this and add RC/GP mix, that should make a brilliant delay composition..
adding iron oxide will also further sentisize the RC plus it will burn abit faster




~25 drops = 1mL @dH2O viscocity - STP
Truth is ever growing - but without context theres barely any such.

https://en.wikipedia.org/wiki/Solubility_table
http://www.trimen.pl/witek/calculators/stezenia.html
View user's profile View All Posts By User

  Go To Top