Hydrogen peroxide, (H2O2), is a clear, colorless, slightly viscous liquid. It is a green oxidant that decomposes in water and oxygen. It is slightly denser than water, but is miscible with water in all proportions, used principally for bleaching cotton and other textiles and wood pulp, in the manufacture of other chemicals, as a rocket propellant, and for cosmetic and medicinal purposes. Solutions containing more than about 8 percent hydrogen peroxide are corrosive to the skin. Hydrogen peroxide is marketed in the form of aqueous solutions. Major commercial grades are aqueous solutions containing 27.5, 35, 50, 70, or 90 percent hydrogen peroxide and small amounts of stabilizers (often tin salts and phosphates) to suppress decomposition.