H₂O₂

Hydrogen peroxide (H₂O₂) is a chemical compound composed of two hydrogen atoms and two oxygen atoms. It appears as a pale blue liquid and is commonly used as an antiseptic to disinfect wounds, as it releases oxygen when it comes into contact with tissues, helping to clean and kill bacteria. In higher concentrations, it can be used for bleaching and cleaning purposes. Hydrogen peroxide naturally decomposes into water and oxygen over time or when exposed to light or heat. It’s important to handle it carefully, as stronger solutions can be corrosive and cause skin irritation.