However, this term is often used specifically for hydrogen peroxide (H₂O₂), which is the most common peroxide.

Here are some other examples:

* Sodium peroxide: Na₂O₂

* Barium peroxide: BaO₂

* Potassium peroxide: K₂O₂

The term "peroxide" is a common name that refers to any compound containing the peroxide anion (O₂²⁻).