Well there's plenty of monoprops that supply their own oxidizer, and oh boy are they absolutely dangerous as hell. https://en.wikipedia.org/wiki/Monopropellant

Well there's plenty of monoprops that supply their own oxidizer, and oh boy are they absolutely dangerous as hell. https://en.wikipedia.org/wiki/Monopropellant https://en.wikipedia.org/wiki/Monopropellant