Pyrogen Compositions
I’m currently working on new pyrogen compositions for electric igniters but haven’t settled on anything yet. For now I’ll be posting the sites I’ve been researching data from until I am able to start adding my own experimentation.
Crimson Powder
After some researching online for a good parachute ejection powder I stumbled across crimson powder. The composition was:
Iron Oxide: % – I need to double check these before posting them
Potassium Nitrate: %
Abscorbic Acid: %
Supposedly vitamin C is mostly abscorbic acid apart from some fillers used to put it in tablet form. So this was the easiest source in a moments notice, and would be my first attempt. It would just require some filtering after dissolving the tablets.
I started by Calculating all of the required components, and based on the percentage of abscorbic acid in the tablets I figured out how many tablets would be required for a 10g batch.
Vague list of ingredients
– This was a starting point for me because the way this pyrogen is described is similar to the commercial stuff I’ve used in the past. I’m searching for more detailed information on these.
Alan Yate’s Site
-This is Alan Yate’s site he has a ton of good information here you should definitely check it out. I’m looking into a couple of his compositions and I’ll do some of my own experimentation.
Awesome page on igniter’s
-This is exactly the ematch design I’m going for with parachute ejection. I’m able to make fairly reliable igniters that work almost all the time on the on the ground but I’m not convinced they’re 100% reliable while flying. I’m also very confident in my engine igniters, but this site shows which compositions to use to dip a simple ejection ematch which is what I think is necessary to make me more confident in my parachute ejection charges.