Need help for identification of an energetic composition/substance

Dear mads, please have a look at the attached photos, did u see these Chinese made hobby rockets? they are tiny in size(approximately 4 centimeters long) they when I cracked one of them open, I found a white material in it, the material looks like plaster! when it burns it burns quickly, I belive the way it burns is different from the way Nitrocellulose burns.
(I tries to bur a small chunk of it, it is not too sensitive to flame, u have to try a bit to ignite it, but once it ignites it burns very fast! and I can say the residue is fairly small, it can be neglected, I also think when it burns it smells like Nitrated compounds such as nitrocellulose, but it burns differently and its flame is not yellowish like nitrocellulose i could'n recognize it's flame color surely cuz it burns fast)

So, does any of U guys know what it is? or can guess what it is?

and what are your suggestive methods for identifying this compound?

Maybe it is a highly nitrated cellulose, I don't know.

Could it be Nitrostarch? (I have never seen Nitro starch)



[Edited on 25-11-2017 by sarinox]

[Edited on 25-11-2017 by sarinox]

Quote: Originally posted by Markovfff

Seems like a some sort of whistle mix. A mix that burns quickly if not compressed. In most cases its a mixture of potasium chlorate with sodium salicylate/benzoate. I remember that in Poland we used to name it SSA powder, I have seen people making huge fireckrackers with it. [Edited on 25-11-2017 by Markovfff]

Quote: Originally posted by nitro-genes

Looks like a purple flame colour from the photos, so a potassium potassium chlorate/perchlorate composition is likely indeed

Quote: Originally posted by Bert

Typically, the Chinese whistling bottle rockets are a phthalate fuel such as Potassium Hydrogen pthalate with Potassium perchlorate as the oxidizer. Minor ingredients might be small quantities of something such as petroleum jelly, a wax or oil to moderate burn speed, render the mix less hygroscopic and thus improve shelf life of the finished rocket engine, and/or catalysts such as Copper chromite, Iron oxides or others to speed decomposition of the perchlorate. [Edited on 26-11-2017 by Bert]

Quote: Originally posted by Herr Haber

Polumna is the easiest firecracker to hand make. Usually the composition is plain and simple flash powder. There is usually a good amount of it though, dont be deceived by the looks.