Sodium peroxide is a chemical compound with the formula Na2O2. It appears as a white or yellowish solid and is primarily used as a bleaching agent and disinfectant. Sodium peroxide releases oxygen when it reacts with water, making it useful in various applications, including water treatment and as a source of oxygen in certain chemical reactions. In addition to its bleaching properties, sodium peroxide is also employed in the production of hydrogen peroxide and as a reagent in organic synthesis. It is important to handle sodium peroxide with care, as it can be reactive and may pose safety hazards if not managed properly.