Description:
Fireworks, rocketry, safety, & other topics.
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red comets again
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I made ruby red comets with the expected result of them falling back to earth still burning. Very beautiful though. My question is, what is a formula used in marine flare pistols. Those burn up in the air, are they not a small comet? Can that be scaled up to a two inch comet? I did find one red comet recipe here, but pretty exotic (to... more »
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KNO3 storage issue?
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Just wanted to know if my KNO3 is still good and worth keeping, I bought 10 of those 5 gal Orange Home Depot plastic paint buckets 10 years ago and was getting 25kg. bags of the crystaline powder form from a fertilizer plant locally, I noticed since they have been stored for so long in this florida heat they are compacted in the... more »
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new to star making
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I have had great luck with Takeo Shimizu Chrysanthemum #6 stars but thats where it ends I have the stuff to try to make these pink blue purple white Lampblack Charcoal and Glitter Stars if I can use german black for the alum. from this page [link] or the firefly ones from skylighter... more »
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How well does Potassium Benzoate store?
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I bought a few pounds of potassium benzoate within the last year and just went to make some whistle mix. It has been stored in a sealed plastic container that is taped closed and stored in a sealed magazine indoors. It was advertised as a fine powder and I believe it also said it was air milled. When I opened it up it was a bunch of small flakes/... more »
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Rubidium in fireworks?
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Are rubidium compounds ever actually used in fireworks? What flame colour do rubidium compounds give? Done lots of Googling, and came up with contradictory answers. I know they have been tried experimentally, if anyone has the Journal of Pyrotechnics - Issue 15, can they tell me what it says on this subject?... more »
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fireballs
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I am kind going backwards in my pyro endevours due to time/money. But still having fun. I made a couple of "hollywood fireballs" this past week and have a question. I have done the bp in a pipe full of gasoline, pretty cool and quiet. So I've been experimenting with flash-initiated fireballs which when they work are awesome. The low... more »
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Where to get guidance sticks?
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Hello, I would like some suggestions on where to look for sticks to use for the tails on 3/4" x 7 1/2" rockets. The smaller rockets were easy, I use bamboo skewers (cheap), or hobby balsa wood (expensive but work well). But now that I'm starting to dabble in this larger size, I am at a loss for ideas.... more »
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best blue stars without NH4ClO4
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Hi guys, I´m searching a good formula for blue stars without ammonium perchlorate, because here in germany there is no option to get NH4CLO4 because of the law. I got several chemicals for blue stars like KClO4, parlon, pvc, CuO, CuCO3 and I know that you can get the deepest blues only with ammonioum perchlorate, but what do you think is the best blue star... more »
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Red lighter flame.
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Not much to tell, the flame impinges on a perforated metal plate. There is almost no visible flame, bit of blue with a central core of strontium red. Casady
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150 lb 0.01 accurate scale for sale
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I have a Fairbanks model 70-2453-4 scale,it is digital,and acurate as follows 60x0.01kg/150x0.02lb in decent condition,that I no longer need ,will sell or trade ,and figured I'd ask here before placing it on Ebay.PM me for more info ,pics etc
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