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white star composition


Zumber

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White star- Hey guys these star burns pretty white in colour without leaving tail.

 

Sodium Nitrate........6

 

barium nitrate........2

 

sulphur.........2-1/4

 

charcoal(air).....1/2

 

mg(fine)......1

 

mg(coarse).....1

 

 

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uncoated magnesium and nitrates (especially ones like sodium) are known for their spontaneous ignition I hope your using coated magnesium

 

Obviously I use coated Mg

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it wasn't obvious and it is your responsibility to alert possible users of your formula to the extreme dangers if they follow it as it is set out
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This composition I used: and it very good for me, easy to roll:

 

White star #1

Potasium nitrate...........................................57

Sulfur.....................................................23

Black powder...............................................20

Dextrin....................................................+4

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it wasn't obvious and it is your responsibility to alert possible users of your formula to the extreme dangers if they follow it as it is set out

note-all part by weight.

Sodium nitrate.....6

Barium Nitrate......2

sulphur.....2-1/4

Charcoal(air).....1/2

Mg(fine,coated)......1

Mg(coarse,coated).....1

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White metal fuelled compositions are usually designed without sulphur. Sodium nitrate give yellow colour to flame and in the white formula isn´t important. Where is binder?

Insufficient formula.

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  • 5 months later...

This composition I used: and it very good for me, easy to roll:

 

White star #1

Potasium nitrate...........................................57

Sulfur.....................................................23

Black powder...............................................20

Dextrin....................................................+4

 

What can I use as a prime? I tried BP but it didnt work too well.

 

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Try a pinch of silicon metal in the prime, it helps get lower fuel comps going.

 

Hum. Don't have any. Could I add some Ti or Al instead?

Edited by pillyg
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Nope, they will not do the same thing. The silicon turns to tiny molten glass and helps ignite hard to light comps. The metals all burn away.
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I just ignited some with my SUPER slow KNO3/Al/S flash. I dont think that would be a good prime though.
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Sure, why not? Use BP over the top of the slo-flash. Make a small mine and see how it does or better yet, shoot some from a star gun.
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Hum. Ok I will try that. I just remember hearing that KNO3/Al was unstable and that water+Al=bad but if you say its ok, I believe you
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What can I use as a prime? I tried BP but it didnt work too well.

I have no problem with these star, prime with BP (milled 15min) catch fire very easily.. By the way, this composition of star I also milled about 30min.. that's why so easy it light ;)

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Ok. I finally got to work but it seemed like I used a lot of prime.
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They are probably not dry yet. KNO3 and dextrin comps can take quite a while to dry out. I am on week three for a batch of stars I made and year two on a batch of TT that I made in 2009. :huh:
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Haha thats a lot. I tried a desecator bag but it didnt really work. I had calcium chloride
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