superspike23 Posted June 19, 2007 Posted June 19, 2007 Hello has all. I received from a friend who works in a factory ,the powder of Tungsten I put himself the question to know if it is used in pyrotechny?
crazyboy25 Posted June 19, 2007 Posted June 19, 2007 allright first you got to work on your english i had to read that 5 times before i even understood what you were saying also it has little use in pyrotechnics becasue it has such a high ignition tempeture although i belive it is used in some delay comps.
optimus Posted June 20, 2007 Posted June 20, 2007 I have some myself and haven't found any use for it as it is very hard to light. The only use I know of is in a delay formula, which uses Tungsten Powder, Barium Chromate, andPotassium Perchlorate. Don't worry about your English - that was perfectly understandable : )
superspike23 Posted June 21, 2007 Author Posted June 21, 2007 My friend brings back today lithium carbonates. powder cobalt. gx-100????? vctr ??? and nahco3. A utility?
psyco_1322 Posted June 22, 2007 Posted June 22, 2007 Why dont you tell him to bring something back that you can and know how to use.
deadman Posted June 22, 2007 Posted June 22, 2007 I don't think his questions are too bad. Obviously he is not a native english speaker, but does well enought to get his point across. Also, many languages don't stress proper grammar as much as english does, so when they learn english grammar isn't the easiest thing to pick up on. Spike: What you do need to do is maker sure when mentioning chemicals is to list them properly. Sodium bicarbonate should be at least NaHCO3 (subscripted numbers would be better), but all lower case is just irritating. Also, don't put so many ?'s. I'd like to know more about this cobalt powder. How much, how fine, and is it pure cobalt, salt, or oxide?
superspike23 Posted June 23, 2007 Author Posted June 23, 2007 I do not have many information on cobalt. it has a color gray-brown and is out of fine powder but not as much as coal dust. I took this photograph.http://www.apcforum.net/files/Photo034.jpg http://www.apcforum.net/files/Photo034.jpg
Crazy Swede Posted June 23, 2007 Posted June 23, 2007 Metal powders, salts or oxides of cobalt and tungsten do not have any practical applications in amateur pyrotechnics! Lithium chloride can be used to colour methanol based flames deeply red. Lithium carbonate would be a better choice for red stars but it is not straight forward to end up with safe and effective stars. Ernst-Christian Koch wrote an article about this in Journal Of Pyrotechnics some time ago.
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