Hydrogen peroxide is a compound has uses in both industry and in common household tasks. In dilutions, it is a clear liquid that appears like water but has distinct properties that make it nonpotable.
The molecular formula for hydrogen peroxide consists of two hydrogen atoms and two oxygen atoms. Compared to water, this involves an extra oxygen atom. This additional oxygen atom is crucial for many of the compound's uses.
Peroxide, as it is often called, is used in diluted quantities in many households as a disinfectant for minor cuts and abrasions. It can also be used to clean or bleach items. However, pure hydrogen peroxide has industrial uses. The aerospace industry, for example, uses it as a rocket propellant.
Most living creatures also produce this substance during regular metabolism. In dilution it is safe for human contact but it should not be swallowed or ingested in any other way.