PillaDoubleG Posted January 7 Posted January 7 For anyone not familiar with these firecrackers, they are called Pirat's (meaning pirate) and I'm pretty sure they're the most well known European firework. They're obviously not as popular in the US and other western countries because of the very strict firecracker laws. To get to my question, can anyone identify what this mixture is, and what the composition of it is? It's used in every firecracker without a fuse (megatresk is the only other one i can think of). I've provided 2 images below, both are pirat's and from different brands (Mirnovec and Orion pyrotechnics, respectively). Every single one consists of the initial phosphorus mixture that burns with a red flame, the mystery mixture, the flash powder, and then the plaster/clay end. You can actually see just how different the two brands are (They actually roll their tubes in the exact opposite direction). Now as to the purpose of the mixture. When you light the firecracker, the mixture burns and hardens up, making a kind of top end that keeps the explosion in. Another thing to note is that the mixture has a very wet sand like texture (even when it's dry). Thanks to anyone who has any input.
CountZero Posted January 7 Posted January 7 (edited) Mx5kevin has made a tutorial for these iirc https://old.bitchute.com/video/jVTqaAhMONRL/ Edited January 7 by CountZero
mx5kevin Posted January 7 Posted January 7 (edited) 1.Scratch igniter: KClO3 60 Sb2S3 20 Dextrin 20, or KClO3 50 Sb2S3 30 Dextrin 20, or any match head composition. 2.Glusatz: 75.5%Ba(NO3)2, 10% Charcoal pine, 10% Sulfur ,3% Meal-D (classic 75/15/10 Black Powder from Pine) ,1% Cab-O-Sil, 0.5% Methyl cellulse (rammed) Pre-dissolve CMC in water. Add dry ingredients and screen well to mix. Allow to temper wet for about an hour, then screen-granulate through 20-mesh, and allow to dry. 1% Cab-O-Sil, 0.5% Methyl cellulse if you don't want to finely granulate it so it doesn't become dusty, you don't have to use it. 3. Potassium Perchlorate based Flash powder: 1. KClO4/Al/S 50/40/10, 2. KClO4/MgAl/S 50/40/10, 3. KClO4/Al/Sb2S3 60/30/10, or from potassium chlorate KClO3/Al 70/30 (without sulfur or Sb2S3 important). Here -325 mesh Mg/Al, 3-7 micron dark Al required. Alternative for this are minimum -325 mesh fine Mg. The Mg or MgAl must be coated with 4% boiled linseed oil what dissolved in small amount of white spirit and dried minimum a week at room temperature to get a hard dry coating, this is important or the chemicals will attack it! This should be poured very loosely into the tube, must be avoid any compression! Without KClO4 or (KClO3 worse case scenario) you won't be able to do it properly on small scales, or high quality. You are wasting your time with any other oxidizer. A thick, strong paper tubes also important for this. See: https://mx5-kevin.blogspot.com or https://sufnipiro.wordpress.com (Hungarian Blog), https://www.bitchute.com/channel/mx5kevin/ and https://odysee.com/@mx5kevin:a Professional's Guide to Pyrotechnics: Understanding and Making Exploding Fireworks, https://www.youtube.com/watch?v=ohC9SlcKu-0 (Match head composition), https://www.amateurpyro.com/forums/files/file/149-fireworks-painting-the-sky-full-website/ (Glusatz), https://www.amateurpyro.com/forums/blogs/entry/170-testing-flash-powders-for-homemade-firecrackers/ , https://www.feuerwerk.net/wiki/Reibknaller , https://www.amateurpyro.com/forums/files/file/142-a-collection-of-pyrotechnic-compositions/ (Match head compositions), https://www.amateurpyro.com/forums/topic/14381-firecracker-powder-1980s/ (Firecracker Powder 1980s), Edited January 7 by mx5kevin
PillaDoubleG Posted January 7 Author Posted January 7 1 hour ago, CountZero said: Mx5kevin has made a tutorial for these iirc 44 minutes ago, mx5kevin said: 2.Glusatz: 75.5%Ba(NO3)2, 10% Charcoal pine, 10% Sulfur ,3% Meal-D (classic 75/15/10 Black Powder from Pine) ,1% Cab-O-Sil, 0.5% Methyl cellulse (rammed) Pre-dissolve CMC in water. Add dry ingredients and screen well to mix. Allow to temper wet for about an hour, then screen-granulate through 20-mesh, and allow to dry. 1% Cab-O-Sil, 0.5% Methyl cellulse if you don't want to finely granulate it so it doesn't become dusty, you don't have to use it. I did not know that so many people already studied this. Thanks a lot!
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