I'm not sure if this has been posted here or not but I'm gonna go ahead and do so, also this is my first posting of a composition so Im sorry for the wall of text and please point out anything I missed.
Name of composition:
Zinc-sulfur fuel, micrograin, zinkitt
solid rocket propellant
Unknown, but its discussed in early rocketry books
Produces a bright green flame and smoke.
The Composition: (by weight)
There are various ratios for this composition, but for the most part the 2/1 (zinc/sulfur) is the most common, also ratios of 6/1 exist
but tend to produce a more "explosive" composition and should be avoided
As this contains sulfur it should be kept away from chlorates due to risks of spontaneous combustion,
also when this composition is ignited it produces zinc sulfide and gasses that can be toxic if in an enclosed space so it should only be ignited outside or in a fume hood.
Simply grind the sulfur and the zinc separately till they are finely powdered and then combine by diaper mixing until you have a uniform dark grey powder. This composition can be compressed into an engine using a hydraulic press.
And as a note, this fuel is only meant for small rockets and because this is an older rocket fuel it has a tendency of producing inconsistent results some of the time, so expect your rockets to not launch off of the launch pad or even explode if its over pressurized.
Edited by somecommiebastard, 18 January 2014 - 11:47 AM.