Calcium Peroxide is a peroxide which decomposes to release oxygen when in contact of hydrous material. CaO2 is one of the most temperature stable inorganic peroxides. It decomposes slowly in moist air, is practically insoluble in water, and dissolves in acids, forming hydrogen peroxide. A 1:100 aqueous slurry has a pH of about 12. Except for its stable oxygen releasing capability, CaO2 has similar functions of other peroxides e.g. bleaching, disinfecting, and deodorizing. CaO2 is environmentally friendly due to its product properties.