Find content
Not Telling
I would like to make a batch of Ruby Red MgAl oder Emerald Green.
Because I am a little low with Parlon, which I'd like to keep for Go-Getters (great effect),
I would like to replace the Parlon. The cheapest replacement for me would be PVC.
Has anybody tried this so far?
Should the formulation be modified in other respects to, or wouldn't it work at all? I would like it to give the perfect colour of the standard Ruby Red, if that's possible...
If just using PVC instead of Parlon works, that would be ideal. Binding is no problem, I don't want to use aceton for the composition anyway.
I'm a bit stressed out at the moment, otherwise I would have tried it for myself already.
Topics I've Started
Crackling without lead oxide/bismut oxide
11 September 2005 - 08:47 PM
I had a look at some patents today and found one by Nico-Pyrotechnik that concerns crackling mixtures using sodium thiosulfate instead of lead or bismut oxides.
In my opinion, this would be a great replacement as sodium thiosulfate is neither toxic nor expensive.
The mixtures given are the following:
Basic mixture:
60 Na2S2O3
34 Mg (160-400?m)
6 S
Improved mixture I:
57 Na2S2O3
19 Mg (160-400?m)
8.6 Mg (250-600?m)
13.3 S
1.9 CaO
3 binder
Improved mixture II:
53.3 Na2S2O3
19 Mg (160-400?m)
7.6 Al (250-600?m)
15.2 S
1.9 CaO
2.9 binder
It is said that the larger Mg particles give louder crackles while the fine Mg is said to ingnite earlier and give brighter flashes.
The CaO should stabilise the mixture.
The mixes are manufactured into stars with a size of 2-4mm. The amount of water should be such that the thiosulfate becomes a dihydrate, which will enhance the effect over the completely dry thiosulfate. If too much water is used, it will become the 5-hydrate which would destroy the effect.
I would like to try it out, but at the moment I have no access to my chemicals, so I thought someone else might have a try. Sounds like a non-toxic and cheap alternative for me.
If you need more information you can have a look at the patent under www.depatisnet.de, number DE 196 14 007 C2 (German
). If you have precise questions, I could also look if the information is in the patent for you.
In my opinion, this would be a great replacement as sodium thiosulfate is neither toxic nor expensive.
The mixtures given are the following:
Basic mixture:
60 Na2S2O3
34 Mg (160-400?m)
6 S
Improved mixture I:
57 Na2S2O3
19 Mg (160-400?m)
8.6 Mg (250-600?m)
13.3 S
1.9 CaO
3 binder
Improved mixture II:
53.3 Na2S2O3
19 Mg (160-400?m)
7.6 Al (250-600?m)
15.2 S
1.9 CaO
2.9 binder
It is said that the larger Mg particles give louder crackles while the fine Mg is said to ingnite earlier and give brighter flashes.
The CaO should stabilise the mixture.
The mixes are manufactured into stars with a size of 2-4mm. The amount of water should be such that the thiosulfate becomes a dihydrate, which will enhance the effect over the completely dry thiosulfate. If too much water is used, it will become the 5-hydrate which would destroy the effect.
I would like to try it out, but at the moment I have no access to my chemicals, so I thought someone else might have a try. Sounds like a non-toxic and cheap alternative for me.
If you need more information you can have a look at the patent under www.depatisnet.de, number DE 196 14 007 C2 (German
). If you have precise questions, I could also look if the information is in the patent for you.
