| The oxidizer used with hypergolic fuel is usually nitrogen tetroxide or nitric acid. |
| Currently, most rockets use a solid or liquid propellant that relies on a chemical reaction between fuel and oxidizer for thrust. |
| Rocket propellants come in two parts, fuel and oxidizer, which work together to keep an engine burning. |
| Overall efficiencies range from 30 to 80 percent, depending on the fuel and oxidizer and on the basis for the calculation. |
| Chlorine is also an oxidizer, so it helps to remove iron, hydrogen sulfide, and other minerals. |
| It is a very powerful acidic oxidizer which can ignite or explode on contact with many materials. |
