Blue star test

[aauurruumm]

KClO3-60g

CuCO3-25g

PVC-10g

S-10g

NaHCO3-1g

Dextrin-5g



[diko9968]

а мона перхлорат???

[andreas12rus]

Есть полное руководство, как сделать звездки? Установка, сборка и т.д.?

[Real0Nighto]

i used shellac instead of pvc but its white not blue just yellowish white flame can any one explain why (i cant find pvc or red gum)

[tomekkk10000]

@Real0Nighto Shellac is only fuel and binder. PVC is chloride donor with gives you better colour

[Real0Nighto]

@tomekkk10000 yeas it was enough time for me to know that pvc is chlorine donor but with any copper salt except copper chlorides u will never get any color without chlorine donor like pvc or parlon ...etc but the bade thing is that i fount coarse pvc powder its not suitable for pyro do u have an idea on how to make it finer powder i tried grinding in coffee grinder but pvc is littlelike rubber < its flabby and cannot be grinded

[hexamine2012]

attention ! KClO3 + S!!! it's very dangerous !

The sulfur react !

S+ O2 =SO2

SO2+ 1/2 O2 = SO3

SO3+H2O = H2SO4 !

[pirotex2005]

@hexamine2012

I add 1% sodium bicarbonate

[PyroChemicals2]

@pirotex2005 Why not BaCO3?

[pirotex2005]

@PyroChemicals2 You can, but I do not:)

[hexamine2012]

@pirotex2005 good idea ;) but i think it's not enough , no?

be carreful chlorate don't forgive ..

[DerVerstopfer]

can i also make blue stars with kno3??

[pirotex2005]

@DerVerstopfer

no

[DerVerstopfer]

@pirotex2005 why not?

[pirotex2005]

@DerVerstopfer

will not burn

[hexamine2012]

@DerVerstopfer not a donor of chlore

[webCorpse]

Класные звездки выходят, но в реале с близи цвет ближе к фиолетовому. Забавляет тот факт, что они об спич коробок поджигаются )))

[extrasonic]

Chlorate stars are OK to be primed with straight BP. Making chlorate/sulfur mixtures is questionable, it can be done safely though. The sulfur has to be acid free, pure.

[Mnemotron2010]

nice blue,but kclo3+S=danger

[allrocketspsl]

@Mnemotron2010 the Maltese use it all the time and they say there has never been a accident because of it,still not something you should do

[Mnemotron2010]

@allrocketspsl my cuso4 blue stars with kclo3 in about 2 weeks auto-ignited!!!.I was lucky that the stars were in a safe place!!!

[allrocketspsl]

@Mnemotron2010 mine have yet as i when making purposely set some aside in safe place about three weeks ago,i think its a chance but not high as is flash going up in ones face,for the Maltese its been many many years with no auto ignition

[pirotex2005]

@Mnemotron2010

can be replaced sugar/ red gum

[Mnemotron2010]

@pirotex2005 ok great,i'll try it.You can try replacing cuo for cucl2 and the blue will be better

[pirotex2005]

@Mnemotron2010

I prefer the oxide

copper chloride is water soluble and toxic

[Mnemotron2010]

@pirotex2005 and hygroscopic :(

[extrasonic]

@Mnemotron2010

There's very great danger of using CuCl2 to chlorate compositions, I wouldn't do it.

[Mnemotron2010]

@extrasonic for now in about 3 months of storage no problem.But cuso4+kclo3= auto combustion

[extrasonic]

@Mnemotron2010

CuCl2 with KClO3 will have similar issues. It is also hygroscopic and acidic in solution. I advise you to not do it.

[extrasonic]

@pirotex2005

Keep in mind that sugar/red gum have a different fuel value than sulfur. You can't replace directly without doing oxygen balance.

This formula seems OK, it's very oxygen negative for my taste, but it will do.

[PyroChemicals2]

@pirotex2005 the sulfur yields chlorine from the KClO3. Using sugar would make the color weaker.

[pyr0ph1L]

Very good star, was it primed and if it was primed, what did you prime it with? Just regular BP with dex? :)

[pirotex2005]

@pyr0ph1L

this not primed star

[vh718]

@pyr0ph1L you should never prime a kclo3 star with bp. sulfur and kclo3 are very reactive together

[allrocketspsl]

@vh718 most stars made with chlorate dont need priming if they do let me know I have a sulfurless hot prime just for the chlorates

[pyr0ph1L]

@vh718 There's already sulphur in the star, so it won't really make a difference.. What you should do, is that you should replace the sulphur in the starmix with sugar, red gum or maybe some charcoal and then prime it with sulphurless BP if needed. :D