[Puma565]

hello everyone, im make a neodymium magnet gauss gun for a chemistry project where i need to make a functional airbag...so im using a gauss gun (magnetic accelerator) in order to shoot a sharp projectile at a balloon full of potassium carbonate which will fall into a pool of hydrochloric acid and produce CO2 to fill the air bag.
As far as i know, this is the fastest CO2 producing idea, maybe there are better ones???

 I have the 1/2 inch magnets but im wondering what kind/size of ball bearing i should use that would have the fastest velocity through the system

Amazon has like chromium ball bearings and stainless steel ones etc..

So what kind of ball bearings should i use??

If you can tell me let me know, and if you can think of a way to make my project better (work faster) let me know too.
THANKS

[Enthalpy]

An airbag has to inflate in far less than 10ms (I worked on crash-test technology before) and better under 5ms. Any acid+carbonate mixing reaction will be 1000 times too slow. Options:

- Detonation, as is done now. Azides. Something healthier would be nice.
- Burst a pressure vessel. But catch the shrapnel.
- Decompose irreversibly something using a huge electric impulse?
- If you stay at a chemical reaction, the reactants must be pre-mixed.

This part of the airbag is the difficult one.