Because hydrogen peroxide boils at 150°C, they’re simply boiling off the water and increasing the concentration of peroxide. This is a qualitative method, and you’ll never know what ...

Unlike the hydrogen peroxide that is found in drugstores, which is about 97 percent water, the rocket-propulsion variety has just the opposite concentration – 3 percent water and 97 percent hydrogen ...

This means that the hydrogen peroxide is at a pretty low concentration, which is why it shouldn't harm the fabric. However, ...