It's an hybrid engine, it uses hydrogen as fuel and potassium nitrate as oxidizer.
Hydron 1
The container was too hot to touch and operate so,we had to redo the experiment with analog operation system.
During the process of second experiment, the flame source was not ready on time, due to which we had to do it again, and there was an h2 leakage in the container which caught fire and finally we had to put water and abort the experiment and move away from that place, but the container had imploded.