18 replies to this topic

[Bonny]

I have a bag of copper benz that I'd like to use up, but I don't have any ammonium perchlorate. Does anyone have any formulas for stars,coloured fire etc... that I could use this on?

[Fredez]

I have a bag of copper benz that I'd like to use up, but I don't have any ammonium perchlorate. Does anyone have any formulas for stars,coloured fire etc... that I could use this on?

I am not going to vouch for this but here are some comps.
From the "Best of AFN II" everything by weight.

New Blue
Ammonium perchlorate 82%
Copper Benzoate 18%

Bind with 1% nitrocellulose and make pumped or cut firework stars



New Electric Purple
Ammonium Perchlorate 68%
Copper Benzoate 8%
Strontium Carbonate 12%
Magnalium, 200-400 mesh 5%
Hexamine 7%
Dextrin +4%

[Creepin_pyro]

This is the only one that comes up on Passfire that doesn't use AP:

Blue Metallic Fueled Star:
Name: Slow Metallic Blue
Source: Bert

Potassium Perchlorate 100
Polyvinyl Chloride (PVC). 25
Copper Benzoate 14
Dextrin 10
Red Gum 7
Stearic Acid (Stearine) 5
Tare: Total: 161

NOTES:
Instead of using Copper Benzoate use Copper powder!!!

[MDH]

Just try experimenting in tiny quantities.

To inspire, some ideas could be strontium nitrate / copper benzoate / chlorine donor for purple or barium nitrate for aqua or turquoise.

Even potassium nitrate can make a good blue base with copper compounds if there is enough of a chlorine donor! (to cool the flame as well).

Potassium perchlorate and chlorate should both burn very well with copper benzoate.

-MDH

[seymour]

Welcome to the forum Fredez.

In regard to the Compositions that you posted, it is obvious that you got them from the Skylighter archive where they are referred to as "New Blue" ect. While I cannot find the creator of the Ammonium perchlorate/Copper benzoate blue, the Skylighter article states that they were sourced from AFN II. The purple was created by David Blesser.


It is indeed a very nice purple too. Here is a purple of my own, and while it cant quite match AP purple, it is uses KP and Cu benzoate.

Potassium perchlorate 45
Strontium nitrate 19
Copper benzoate 17
Parlon 15
Magnalium 4

[Buzzbomb]

Just try experimenting in tiny quantities.

To inspire, some ideas could be strontium nitrate / copper benzoate / chlorine donor for purple or barium nitrate for aqua or turquoise.

Even potassium nitrate can make a good blue base with copper compounds if there is enough of a chlorine donor! (to cool the flame as well).

Potassium perchlorate and chlorate should both burn very well with copper benzoate.

-MDH

You know of any blue comps using only pot. nitrate as the oxidiser

[Bonny]

I am not going to vouch for this but here are some comps.
From the "Best of AFN II" everything by weight.

New Blue
Ammonium perchlorate 82%
Copper Benzoate 18%

Bind with 1% nitrocellulose and make pumped or cut firework stars



New Electric Purple
Ammonium Perchlorate 68%
Copper Benzoate 8%
Strontium Carbonate 12%
Magnalium, 200-400 mesh 5%
Hexamine 7%
Dextrin +4%

Please try and read my whole post next time...IF I had ammonium perc I wouldn't be asking for formulas that don't contain it.

[MDH]

Well your goal is to obtain the creation of copper monochloride, and to maintain a low tempature and light output. Nitrates have worked well with barium/strontium carbonate for myself before, but admittedly I Have never tried blue with potassium nitrate. But I am quite sure that if you managed to use a chlorine donor both to create the monochloride in a potassium nitrate based composition AND cool it down a bit, you would get a nice blue. With barium nitrate, an aqua or "seabreeze green" colour.

[bigtonyicu]

I've done everything to get a good blue with nitrates.... I CAN'T. All my stars are nitrate bassed but when it comes to blues I have to go back to KClO3 (can't get KClO4). If anyone has any NO3 blues please share. in my experience the nitrate seams to be too hot and wash out the blues.

[demoman]

I would like to find formulas for any colour using only Pot. Nitrate as the oxidiser. Anyone want to share.

Edited by demoman, 23 September 2008 - 01:16 PM.

[Pretty green flames]

I would like to find formulas for any colour using only Pot. Nitrate as the oxidiser. Anyone want to share.

No such formulas exist...

[bigtonyicu]

I would like to find formulas for any colour using only Pot. Nitrate as the oxidiser. Anyone want to share.

From my experience the flame it to hot, any signs of blue get washed out and end up looking more white then blue. it's easy to slow down the reaction rate of a nitrate formulas, but it's next to impossible to cool down the flame.

[Bonny]

I would like to find formulas for any colour using only Pot. Nitrate as the oxidiser. Anyone want to share.

You might be able to make a really crappy red or maybe a really crappy green, but I doubt it. To make any decent colours you'll need other (better) oxidzers.

[bigtonyicu]

You might be able to make a really crappy red or maybe a really crappy green, but I doubt it. To make any decent colours you'll need other (better) oxidzers.

that's not accurate... you can make some good green, red, purple

[MDH]

Indeed. I have seen good pink, red, yellow and green compositions with just KNO3 (yellow based on chloride, red based on carbnoate, green based on a little bit of bano3, kno3, carbonate and a chlorine donor). And I also don't think it's impossible to slow the composition down or make it cooler. What you want is a flame to be produced in which copper monochloride is formed, so "Cooling" the flame after the initial decomposition of the nitrate with another fuel and allowing excited copper monochloride to form in that in theory shouldn't be out of the question.

Although I agree that whatever blue is created with nitrate, it'd be rather washed out, so the goal right now would just be to achieve a pale or "Sky" blue.