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blue stars

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#46 Old1953



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Posted 08 March 2005 - 02:33 AM

About the subject of blue stars with KNO3...

I found an old book with some even older compositions.
When reading it I found many recepies with S and KClO3, and others with "sulfur copper" and similar trivial names... :closedeyes:

To the subject. I found a star named "Blueish" or similar translated in to english. It contains 2 parts "powder BP" and 2 parts "granulated zink".

I have not tried it, but might be interesting for anyone without access to proper chemicals to make more modern blue stars.

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You know, I was thinking the other day about those dangerous old comps. There is a way to "safe" almost anything, that's used in the drug industry.

They coat drugs as micron sized pellets, with coatings so passive they can determine how long it will take or in what part of the intestine they will dissolve.

Similar tech applied to pyro chemicals, using waterproof passive coatings would make almost any mix safe. The coating would burn off and the comp would actually be "mixed" as it burned.

Given the way pyrotechnics is the unwanted stepchild of the chemical industry, it will probably be fifty years before anyone applies this technology to pyro chemicals. Sigh.

Imagine fine sulfur coated with chlorine doners, or whatever else you needed to make the color bright. Or imagine two or three coatings, meant to burn off as the particles were shed, to give stars with one color at the center of the flame, another color at the outside. Or whatever else you can imagine - stars that sparkle on the outside or leave a dark trail that crackles and flashes three seconds after the star passes. Great possibilities.

#47 Jerronimo


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Posted 25 April 2005 - 08:14 PM

I was browsing the net for a copperoxycloride source(realy deep blue's with KClO3 and lactose).
I noticed that it has a use as a pesticide/fungicide on this:page

But what about the purity?anyone had any experience with this?

Edited by Jerronimo, 25 April 2005 - 08:14 PM.

"Any society that would give up a little liberty to gain a little security will deserve neither and lose both."

#48 sasman



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Posted 18 May 2005 - 12:06 PM

Has any member got a video clip of a good blue?..I would like to see a ammonium perchlorate blue ..compared to a Potassium chlorate Blue?.. Has anyone made the ammonium perchlorate and copper benozate blue?..taht sounds pretty good blue..

Also Kimbolton do a multishot cake called the lake of saphires..If i can reproduce that blue i will be very happy..Would that be a ammonium perchlorate blue?..

Lake of sapphires

not sure if that link will work for nonmembers..


#49 Yugen-biki


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Posted 18 May 2005 - 02:23 PM

It is hard to say if the stars are made useing NH4ClO4 or KClO4. All modern compositions, useing NH4ClO4 or KClO4, will work as good as the stars in the movie. I have never tested KClO3 so I can't say how they'll performe.
KClO4 stars have least chemical incompabilities, and works good with Cu(II)O and probably as good or better with CuCO3. And i promise that no one will be dissapinted in the stars you can make with KClO4.
The biggest difference is that NH4ClO4 stars are easier to ignite and burns with a larger flame. The larger flame means that the flame is seen from a longer distance and the makes the flame "richer". Also the composition does not burn with as much white light as a KClO4 star would. But in a shell this is hard to notice.

In the end all blue recepies found in books today are being used because they all will produce a good blue. This holds true for all other colors as well. A few years ago I used to think that you have to "hunt down" the best recepie, because only a few are good. But it is not so. All recepies in Lancaster and Shimisu will do what they are supposed to do with no problem.

I would reccomend a KClO4 star with lots of primeing for beginners, and a NH4ClO4 star late to se the difference.

#50 Pretty green flames

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Posted 18 May 2005 - 04:13 PM

So one of my Forum-mates was watching McGuyver :D when he put together some Zn and Cu, ofcourse this was an improvised ex******. Anyways he was tempted to try this mixture, when lit it burns with a bluish coulour, he used a ratio of 5parts Zn powder 1part Cu powder. If anyone has these chems prepare 6grams and try it and post results if this would make a satisfactory star.

McGuyver........ :lol: :lol: :lol:

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