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potassium nitrate flash powder. not so flashy.


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#1 danz409

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Posted 15 June 2015 - 04:33 PM

so i'm completely new to the APC Sean. i'm interested in making my own fireworks. iv got smoke and flash down. (flash by accident with this recent mix) i can make some great rockets. but also heard you can make some reports with potassium nitrates as well. so i tried a mix of 5 potassium nitrate, 3 sulfur, 2 aluminum powder ultra fine (working on germen dark. i need good ball mill media) however when i made the mix it was more of a fluuuuuuush powder. insainly bright though. i like that, i was going to mess around with magnesium for that. but i don't think i have to anymore! :D 

 

any recommendations for a good mix for flash? iv already put a lot $ into equipment and sadly the scale i bought don't go into mil grams so the measurements could be off a good deal. i'm not about to go and make 100g of experimental mix...  



#2 lobowarxl

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Posted 15 June 2015 - 05:24 PM

hi i dont know anything about flash my flash burns very slowly for some reason it takes like 5 seconds to burn



#3 Mumbles

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Posted 15 June 2015 - 06:06 PM

so i'm completely new to the APC Sean. i'm interested in making my own fireworks. iv got smoke and flash down. (flash by accident with this recent mix) i can make some great rockets. but also heard you can make some reports with potassium nitrates as well. so i tried a mix of 5 potassium nitrate, 3 sulfur, 2 aluminum powder ultra fine (working on germen dark. i need good ball mill media) however when i made the mix it was more of a fluuuuuuush powder. insainly bright though. i like that, i was going to mess around with magnesium for that. but i don't think i have to anymore! :D

 

any recommendations for a good mix for flash? iv already put a lot $ into equipment and sadly the scale i bought don't go into mil grams so the measurements could be off a good deal. i'm not about to go and make 100g of experimental mix...  

 

It's the homemade aluminum I suspect.  Despite what youtube and a mountain of idiots will tell you, it's impossible to make anything approaching blackhead aluminum in performance.

 

 

 

hi i dont know anything about flash my flash burns very slowly for some reason it takes like 5 seconds to burn

 

If you don't know anything about flash, then you absolutely should not be making it. 


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#4 danz409

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Posted 15 June 2015 - 06:26 PM

 

It's the homemade aluminum I suspect.  Despite what youtube and a mountain of idiots will tell you, it's impossible to make anything approaching blackhead aluminum in performance.

 

 

 

 

If you don't know anything about flash, then you absolutely should not be making it. 

actually its stuff i got off ebay. http://www.ebay.com/...=STRK:MEBIDX:IT

 

the potassium nitrate however came from stump remover. its supposedly (according to the MSDS) 100%


Edited by danz409, 15 June 2015 - 06:28 PM.

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#5 Mumbles

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Posted 15 June 2015 - 10:42 PM

Ah.  Even still, the problem is the aluminum.  It's atomized, which is not suited to this application.  It'd probably make great glitters though. 


Just so you guys quit asking, here is the link to the old forum. http://www.xsorbit2....forum/index.cgi

The sky is my canvas, and I have 2,113 pounds of powdered paint in the workshop.

#6 danz409

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Posted 15 June 2015 - 11:09 PM

im attempting to mill my own mix with some charcoal. hopefully it goes better. also not being to get accurate than a gram is another problem i think i may be having. i ordered a much more accurate scale on ebay. ill do more experimenting when that gets in. 



#7 Mumbles

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Posted 15 June 2015 - 11:14 PM

Good luck with your completely futile experiments.


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Just so you guys quit asking, here is the link to the old forum. http://www.xsorbit2....forum/index.cgi

The sky is my canvas, and I have 2,113 pounds of powdered paint in the workshop.

#8 danz409

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Posted 16 June 2015 - 07:39 AM

Good luck with your completely futile experiments.

futile? do you have any suggestions? please share. 



#9 taiwanluthiers

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Posted 16 June 2015 - 08:12 AM

30 micron is not even enough to make flash, but you may be able to make other things like glitters with it though.

 

German dark/Indian blackhead is generally around 3-5 microns.


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#10 FlaMtnBkr

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Posted 16 June 2015 - 09:16 AM

Hopefully when you say you're attempting to mill your own mix, you don't mean mill your report composition mix. If so, you now have a time bomb going.

What you made is slow flash with bad aluminum. Unless the aluminum said specifically what it was (ie Ekhart xxxx), eBay won't have stuff good for an earth shattering boom. If flash isn't scaring the crap out of you, your aluminum isn't the right kind.

Also, flash usually refers to the stuff that explodes violently, not something that makes a bright flash.

Here is a tip. Read more before you blow your fingers off.
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#11 fckiamdead

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Posted 16 June 2015 - 10:16 AM

so i'm completely new to the APC Sean. i'm interested in making my own fireworks. iv got smoke and flash down. (flash by accident with this recent mix) i can make some great rockets. but also heard you can make some reports with potassium nitrates as well. so i tried a mix of 5 potassium nitrate, 3 sulfur, 2 aluminum powder ultra fine (working on germen dark. i need good ball mill media) however when i made the mix it was more of a fluuuuuuush powder. insainly bright though. i like that, i was going to mess around with magnesium for that. but i don't think i have to anymore! :D

 

any recommendations for a good mix for flash? iv already put a lot $ into equipment and sadly the scale i bought don't go into mil grams so the measurements could be off a good deal. i'm not about to go and make 100g of experimental mix...

 

 

PotassiumNitrate and Magnesium 50%/50% is a good mix for salutes in the fx industrie. Keep it dry and keep safe!


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#12 taiwanluthiers

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Posted 16 June 2015 - 01:38 PM

You need to read a LOT more before even thinking about magnesium based flash mix. They're more sensitive and less stable in storage.


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#13 viziers

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Posted 20 June 2015 - 03:48 PM

Heck I still have almost a full LB of indian dark from 5 years ago that has been sealed in a bag inside a container and the container lid taped all around the lid. That's how often I use any type of flash composition....

 

However I may make a 10 gram batch and use some of Dabago's little yellow caps for some timed reports in the 4" star mines I am in the midst of making.

 

 

 

 

 

 

vizi



#14 OblivionFall

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Posted 28 June 2015 - 08:01 PM

 

It's the homemade aluminum I suspect.  Despite what youtube and a mountain of idiots will tell you, it's impossible to make anything approaching blackhead aluminum in performance.

 

 

 

 

If you don't know anything about flash, then you absolutely should not be making it. 

I am going to attempt to make dark aluminum powder in my ball mill that makes a "poof" with perchlorate. If that doesn't work, how do they make German Dark Aluminum Powder or Eckart that makes it so much more powerful? What is the process?


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#15 OblivionFall

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Posted 28 June 2015 - 08:09 PM

Look, you can't expect to get flash powder that goes "poof" with KNO3/Al/S. Maybe with Magnesium, but definitely not with KNO3. The only guys on Youtube that get it that powerful use 0.000002 grams at a time and brag about how "fast" it burnt.

 

Your best bet if you are making salutes is to use 6/3/1 KNO3/Al/S and use Aluminum powder that you bought from a trusted website that isn't ebay. You have to have your end caps ridiculously strong so that enough pressure builds up for the Flash Powder to explode.

 

I'll make you a deal. You're pretty new here, and if you can prove to me that you can safely make and handle flash and are willing to learn the incompatibilities that Nitrate flash has, I'll send you the video I made that explains the best and safest way to make KNO3 based salutes which is what you are making. I'm not really with noobs making flash, but I know that they are going to anyways so I might as well teach them the correct way.

 

Contrary to what Mumbles said, I milled my own aluminum powder in 3 weeks from aluminum foil with crappy lump charcoal mixed in and it worked for me. I managed to make salutes with it. Using your own aluminum powder isn't out of the question, and if you live in Canada, it's probably your only option besides using magnesium. My aluminum powder made a woosh and burned fairly fast in a 1g batch, and I'm sure your can too. It's not going to be anything like KCLO4/Al flash, but it gets the job done.


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#16 insutama

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Posted 28 June 2015 - 10:03 PM

What type of media did you use in your ball mill for milling aluminum ? Chrome plated steel ball bearings ? I have thought about trying this i even built a brick bunker in my backyard to put my ball mill in so if anything happened it would be harmless plus I would have it hooked up to a timer and open it in full welding jacket and gloves once a day to let it air out. I definatly don't think its a good idea to be doing without all the safety precautions I have my A ticket for welding and before I hired on the railway worked a lot with welding aluminum houseboats so I know how nasty Molten aluminum can be not to mention the uv Rays that comes off burning aluminum. Be safe if your gonna attempt this

#17 MrB

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Posted 29 June 2015 - 06:58 PM



If that doesn't work, how do they make German Dark Aluminum Powder or Eckart that makes it so much more powerful? What is the process?

A tiny bit of info is available here.

B!



#18 MudDuckPyro79

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Posted 14 February 2017 - 03:13 AM

here is a video that uses a nitrate based flash powder and titanium for inserts, unconfined it burns slower than b.p. but confined it does just fine an effect. But it does use sulfer and 5413H german dark aluminum from a known supplier. Mix was 5-2.5-2.5. I'm not saying to make this your go to flash powder but for what I was doing it worked for me. My norm is 7-3-1 but I was just messing around with fuse and delays using different types of fuse.
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#19 limak

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Posted 29 April 2017 - 03:49 PM

I have good results using this flash even without end plugs in thick walled tubes, only paper. :)  I always thought that nitrate salute must be well confined to produce report. I was really impressed with it. Ultra fine milled potassium nitrate and sulphur mixed with german dark 50:25:25 - in my opinion burning rate is little bit slower than pot perc with bright flake aluminium, still very powerful.

 



#20 pyroman2498

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Posted 29 April 2017 - 06:25 PM

Geez this topic made me cringe !
Lemme just say this , if you are gonna mill Al with chrome plated steel bearings than be prepared to have a disaster happen.
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