Composition Type: Irregular purple strobe
Color/Effect: Purple / Violet
The Composition: (by weight)
Ammonium Perchlorate 4
Cu metal 2.4
Strontium Carbonate 0.5
Bind with NC (see prep notes)
Any Precautions/Incompatabilities: Copper reacts with AP. Unstable. Do not store. May be shock sensetive - treat with caution. Work outside when using NC and be wary of fumes when drying.
Precedure/Preparation: AP ground in pestle & mortar. 5g batch was bound with 1g NC lacquer. Cu metal is epoxy casting stuff from ebay.
Video at Pyrobin
The video is a 1/2" pellet of comp.
This is still a work in progress but I wanted to share where I'm up to. The idea was to formulate a strobe pot without Guanidine / Tetramethylammonium Nitrates or variations on the AP/MgAl/Mg strobes, making a relatively low light output, saturated strobe. This is not based on any particular comp or existing system.
It tends to extinguish itself without binding with NC. Strontium can be removed for a blue strobe. I would like to optimise the comp for use as microstars - I have a feeling upping the NC content might be worth trying as currently the stars are blowing out / not lighting properly.
I would appreciate feedback on this, as I said it's a work in progress and I don't have a massive amount of time for testing. I haven't tried different grades of Cu or tested it bound in tubes yet.
Edited by optimus, 09 February 2011 - 06:33 PM.