GermanPyro Posted September 19, 2017 Share Posted September 19, 2017 Hello Pyros, I need your help, because I am a little bit confused. Shimizu specified in his book (art, science & technique), magnesium must be used for AP twinklers, only white twinklers use magnalium. But inside the encyclopedic dictionary of pyrotechnics is specified to use magnalium for all twinkler formulas? What is correct??? Magnesium or magnalium??? Thx for help! Stefan Link to comment Share on other sites More sharing options...
Adrenaline Posted September 19, 2017 Share Posted September 19, 2017 (edited) Shimizu's strobe formulas generally use magnesium. I have never heared of anyone using magnalium.There are some colored strobe formulas out there which use magnalium, however they either use exotic chlorine donors ( Kinsei/Bleser's colored strobes which use hexachlorobenzene) orare unreliable in terms of strobe frequency and quality of color (http://www.amateurpyro.com/forums/topic/3886-red-nitrate-strobes/). Edited September 19, 2017 by Adrenaline 1 Link to comment Share on other sites More sharing options...
OldMarine Posted September 19, 2017 Share Posted September 19, 2017 Most all of the strobe star comps I found in my reading use mgal rather than mg. I don't think mgal was as readily available back when Dr Shimizu was working on strobes. Link to comment Share on other sites More sharing options...
GermanPyro Posted September 19, 2017 Author Share Posted September 19, 2017 Thx! Link to comment Share on other sites More sharing options...
Maserface Posted September 19, 2017 Share Posted September 19, 2017 Shimizu was studying the use of MGAL in strobes in 1955, and talks extensively about it in FAST. MGAL works well with AP/sulfate strobes, but washes out any color, magnesium is therefore used. Shimizus white AP/sulfate strobe contains mgal. See FAST, page 223 Link to comment Share on other sites More sharing options...
OldMarine Posted September 19, 2017 Share Posted September 19, 2017 I stand corrected. I only read the first part of the chapter before commenting. 1 Link to comment Share on other sites More sharing options...
Maserface Posted September 19, 2017 Share Posted September 19, 2017 Notice this time I DO HAVE a page number 1 Link to comment Share on other sites More sharing options...
OldMarine Posted September 19, 2017 Share Posted September 19, 2017 (edited) Notice this time I DO HAVE a page number AND it matched my edition of the book! Page 15 of Pyrotechnica V lists some of Dr Shimizu's MgAl twinkler compositions. Unfortunately all contain Benzene Hexachloride which I've never run across. Edit; This article from SL seems to say it's just a chlorine donor that can be replaced with Dechlorane plus or similar donors.http://www.skylighter.com/fireworks/making-fireworks-projects/chlorine-donor-fireworks-chemicals.asp Edited September 19, 2017 by OldMarine Link to comment Share on other sites More sharing options...
Maserface Posted September 19, 2017 Share Posted September 19, 2017 There is also some info on strobes in Fireworks from a Physical Standpoint, which I think you have.. Benzene Hexachloride unfortunately is not commonly available, and in the case of colored nitrate strobes pretty difficult to replace. Link to comment Share on other sites More sharing options...
OldMarine Posted September 19, 2017 Share Posted September 19, 2017 I have a half jug of Lindane that I've kept since I was a kid.We used it under foundations for outbuildings for termite protection. I believe this is the same chem.Any idea which volume contains the twinkler info? Unfortunately there is no index. Link to comment Share on other sites More sharing options...
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