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#41 Givat

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Posted 09 November 2006 - 07:19 AM

fizeau, I copied a comment I got from JamesH in my green star comp thread

That composition has the potential for spontaneous combustion. Any combination of a nitrate, metal and a chlorate is very unsafe, especially in a damp state. Basically, this is because the metal will partially decompose the nitrate, releasing ammonia gas. The ammonia has the potential to react with the chlorate compound to give ammonium chlorate, which is a very unstable explosive compound.
There are two articles in The best of AFN II on this subject, one titled 'DEATHMIX' and the other 'POTENTIAL DEATHMIXES'. These can be found on pages 175-177.

The composition would be far safer if you substituted perchlorate for the chlorate.

Please everyone take heed of the warnings, I don't want to see anyone getting hurt as a result of mixing such a composition.

Stay safe,

James



#42 fizeau

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Posted 09 November 2006 - 01:39 PM

Thanks man, that was helpful. Now, I never did before a comp, where I used
nitrates and chlorates at once, but I really had to try cplmacs comp! For the
time being Iīll put a stop to flash comps, I donīt want to strain
my luck. But another thing you posted pulled my interest: The best of AFN II.
Where can I find that? Is it available in the net? Sorry for my ignorance, I
never heard before of that articles. I would be grateful for the link.
Thanks in advance. fizz

#43 styropyro

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Posted 09 November 2006 - 04:25 PM

Here is the best of AFN II. There probably is cheaper sources, but this comes to mind first. I think theres also one on eBay too. So if anybody knows of a cheaper source, please let us know.
Tired of reading yet? Well, quit readin’ and go out and LIGHT something!
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#44 fizeau

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Posted 09 November 2006 - 04:37 PM

thx styropyro, I canīt write a good reply because my translator is sleeping...I will looking for this books!

#45 cplmac

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Posted 19 November 2006 - 06:01 PM

In malta colured flash is used in colured beraq, many different compostions are used in every different factory around malta even with sulfer and chlorate so its very dangerouse ....last year my two friends made the red beraq (red flash) but its too dangerouse, but a few months ago some one told me this red flash comp :


Strontium nitrate 1
Magnesium 1
PVC 0.1

for next year i will make some of this for the feast.......

Take care guys B) .....

Ir russu

What was the comp your two friends used to make the red flash? If you would like you can PM it to me. I would be grateful, thanks.

#46 cplmac

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Posted 02 July 2007 - 05:50 PM

New red flash comp folks, the best one yet by far from me.
Strontium Nitrate.........30
Strontium Carbonate.....20
Magnesium 250 mesh...35
Parlon........................15

This stuff pops the brightest red flash I've seen yet in a flash bag. Haven't tried confining it, but I will later. I'm sure like all colored flash it will lose color with confinement.

#47 Mardec

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Posted 08 July 2007 - 11:18 AM

New red flash comp folks, the best one yet by far from me.
Strontium Nitrate.........30
Strontium Carbonate.....20
Magnesium 250 mesh...35
Parlon........................15

This stuff pops the brightest red flash I've seen yet in a flash bag. Haven't tried confining it, but I will later. I'm sure like all colored flash it will lose color with confinement.

Are you sure? :s

That sounds like a really overfueled / choked flash to me, but then I have seen strangers compositions..
Girl, wanna see me firing my 12 inch ?

#48 cplmac

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Posted 11 July 2007 - 12:17 AM

I'll put a video of it up tomorrow night. Confined and unconfined.

#49 Mardec

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Posted 11 July 2007 - 11:33 AM

I'll put a video of it up tomorrow night. Confined and unconfined.

Thanks man! :-)
Girl, wanna see me firing my 12 inch ?

#50 cplmac

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Posted 13 July 2007 - 10:03 PM

I'm not sure what went wrong, but the red flash pot worked just right and the red report acted like a star. This makes no sense to me as both used the same formula from the same batch. At any rate, here are the videos. In the stills of the red flash once you get past the initial burst of the pot the next few frames of red are pretty intense. The red report was also a nice red, but no report at all, burned real slow actually.

Red Flash Pot

Red Report dud

#51 karlfoxman

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Posted 02 August 2007 - 08:36 AM

Has anyone tried to use Shimizu magnesium colour compositions granulated? I have some 500 mesh Magnesium versions in some of my latest test beraq.

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#52 cplmac

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Posted 02 August 2007 - 08:49 AM

I haven't tried any of Shimizu's color compositions, how did they work? I'd love to see them, and welcome aboard! Good to see UKPyro making a visit!

#53 karlfoxman

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Posted 02 August 2007 - 09:02 AM

Hello, its good to be aboard! I was a member 2 years ago or so. I will let you know, I have tried some other beraq using granulated orange mg/al but it just jetted for a second so I am sure magnesium is the only way to make them work. Im sure granulating and leaving some empty space will make them work. If not then back to the drawing board. I have some Maltese colour flash formula but cannot post them. They work but as you may know, are dangerous and dont like using them!

When these are tested I will post the footage.

#54 cplmac

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Posted 03 August 2007 - 06:03 PM

Maybe more oxidizer in the jetting case? Or perhaps adding a catalyst? What were they oxidized with?

#55 optimus

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Posted 07 August 2007 - 06:59 AM

This is from Tom Niesen on Passfire:

http://pyrobin.com/files/100_4619.jpg

Red bottom shot. Should be interesting!

#56 Tyneman

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Posted 08 August 2007 - 02:52 AM

Here's some of my coloured flashes. First is the red.
They dont burn that fast, but I used a tad coarse Mg because of the indoors experiments.

Red compo was:
KClO3---12
Mg-------50
SrCO3---38

Vid is HERE.

Gr33tZ

#57 karlfoxman

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Posted 09 August 2007 - 03:43 AM

They were oxidized with Potassium Perchlorate, I will do some more tests but working my ass off at the moment so not much time for the beraq.

Red bottom shot, god I hope it is not a chlorate formula like the maltese ones I tried!!

Not a bad vid there, but for me chlorate is not an option. It will work but making the holes after filling and a chlorate comp is just asking for some trouble. I will do some tests on these new ones when I get the chance, maybe this friday!

#58 invisibleworld

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Posted 06 September 2007 - 03:07 AM

Try lowering the perc and add a clorine doner... PVC, the lower the temp the brighter the color ;)




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