273 replies to this topic

[portfire]

As you know the chemical symbol for copper is Cu and in latin means Cuprum or cupric,so cupric is the old name for copper,i'm not sure if its still called cupric over there,anyone???

dean

[YT2095]

"ic" and "ous" are use to establish the oxidation state, it`s pretty redundant now though but still used in some chemical nonmenclature, it usually now preferred to state the Oxidation (I) (II) (III) etc...

as for CuO, I`ve not seen it directly used in any pyro formula myself.

[MMMMMM Pyro]

Check Richard's link to fountain formulas (http://paraphysics.c...sswick_gerb.jpg) Its directly used in the Purple and the Turquoise formulas.

Also, check the PFP for blue star formulas with CuO

Finally, while I am here... A STUNNING blue fountain that is rather modified from one I found on cannonfuse.com...

NH4ClO4 7
Shellac 0.5
Fine Caster Sugar 2
CuO 1
Ti Sponge I just used a pinch...

Its a stunning formula, I pressed into a 1/2inch case and got a 7inch blue blame with crackling Ti, really really nice.

Regards,

Mike

Edited by MMMMMM Pyro, 21 July 2007 - 04:22 PM.

[YT2095]

ewww, the effect sounds pretty sexy

I just need to get my hands on some AmPerc, I keep meaning to, I just keep forgetting!

[dr thrust]

i see said the blind man!, thanks guy,s for the "cupric" explanation!,is there any hope for me or should i take up chess?

[Richard H]

Get some good books and you will be fine Lancaster's Fireworks Principles & Practice is a fantastic addition to anyone's library, go obtain a copy from Kimbolton Fireworks is my advice.

[YT2095]

top right corner Here: http://www.kimbolton.../pages/news.htm
if I`m not mistaken.

[dr thrust]

done

[leosedf]

Hello!
Here are two fountains i made last week.

[Bonny]

Hello!
Here are two fountains i made last week.

Very nice, loved the crackle!! Care to share any details...tube size,choke? microstars?

[leosedf]

3/4lb tube, choke was 6mm but it was too big.
Red lead Microstars..

[Bonny]

3/4lb tube, choke was 6mm but it was too big.
Red lead Microstars..

Thanks. i've just tested my first batch of microstars and look forward to using them in a fountain. What is the ID of a 3/4lb tube?

[leosedf]

19.0500mm i guess

[pymp]

Tested out a titanium fountain today, using a formula I had had success with in the past. 1" ID, 8mm nozzle. I was hoping for a slightly longer burn time, and a lower burn height! It reached an easy 30ft, but only lasted a few seconds. Uploading a video to youtube currently.

Edited by pymp, 31 July 2007 - 09:10 PM.

[BIOHAZARD]

Hi is the following safe-I mean has anyone used it before or is it likely to explode on me?-for sparklers by the way

300 parts potassium chlorate
60 parts aluminum fines, flitter, or granules
2 parts charcoal
10% dextrin in water solution
500 parts strontium nitrate (optional, for red color)
60 parts barium nitrate (optional, for green color)