joeflsts
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Red Flash Powder
I'm been playing with flash powder and wanted to share one result with you.
6g Potassium Permanganate
4g Aluminum 325 Mesh
2g Sulfur
1g Strontium Nitrate
Mix Sulfur and Aluminum
Mix this with Potassium Permanganate and Strontium Nitrate
Placed on ceramic tile in pile with indentation at the top where I add a small amount of Potassium Permanganate
Place 1-2 drops of Glycerin on the Potassium Permangante to initiate combustion.
Excellent flash and large amount of smoke.
[Edited on 3-6-2006 by joeflsts]
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Maja
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Sulfur and KMnO4 containing compounds are unstable and should be avoided.
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joeflsts
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| Quote: | Originally posted by Maja
Sulfur and KMnO4 containing compounds are unstable and should be avoided. |
Excellent advise.
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=SkyNET=
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Still a great flash though.
But sulfur doesnt like strong oxidisers.
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waxman
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The thread on Flash Powder revels in the wonders of KMnO3, Al, and Sulfur. Best advice is to not leave it lying around forever.
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Canuck
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BE extremely carefull with this mix!!!!!!!
when it was used for flash pots it could auto ignite from moisture contamination.
Next thing, be aware that this powder is VERY POWERFUL and when confined in a can or jar makes ONE HELL of an explosion with intense heat that could
easily ignite just about anything. An accident with this stuff will either burn you severely or kill you.
This mix generates luminous fireballs when ignited out in the open like an atomic bomb!! Very spectacular!
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ethan_c
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I think danger is assumed to be a part of the flash powder intent- why does everyone immediately jump down whoever's neck with "BE CAREFUL DON'T BLOW
YOURSELF UPP!"
The one thing you might want to mention that the time between when you put the drops of glycerin on the permanganate and when it reacts to ignite the
powder is very variable, depending on the size of the crystals, purity of the glycerin, etc…I've had variation from about 2 seconds to 7 minutes.
Keep postin those good ol' flash recipes!
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neutrino
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>why does everyone immediately jump down whoever's neck with "BE CAREFUL DON'T BLOW YOURSELF UPP!"
Because we've seen far too many idiots who have no clue of what they're doing trying to make 1337 B0/\/\Z and landing in the hospital (or worse).
We're just trying to protect them from themselves until (if) they grow brains. Consider it a public service. Or a detriment to natural selection. Both
work.
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Canuck
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Ya, well I have also seen this stuff ignite from moisture so, ya I wasn't aware of it until it happened. NOT cool. It will go off when you least
expect it. So the emphasis on the DO NOT STORE IT for long periods is a must. Ambient moisture over time I am guessing causes a weak acid (sulphurous
acid) to form from the sulphur. .. the acid eventually get stonger enough to start a cascade and whola .. a nice spontaneous expolsion or fire
results.
So ya, I think you really got to be weary of this flash mix as it has some reather dangerous aspects to it.
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Zinc
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Mixing Al with nitrates is also dangerous. It can ignite itself if it is moist.
(Yay 50 posts! I am not harmless anymore!!!)
[Edited on 9-7-2006 by Zinc]
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Mumbles
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Yes, but adding a few percent boric acid will effectivly kill the reaction. I had some complex version of the reaction not too long ago. Sulfur
and/or Sb2S3 were also involved as H2S was being emitted as opposed to the more commonly observed ammonia(nitrate reduction by Al). Spraying the
stars a few times with a boric acid solution killed the reation.
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