Peróxido de Hidrógeno

Peróxido de Hidrógeno

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Hydrogen peroxide is a chemical compound of hydrogen and oxygen and has the molecular formula H2O2. Pure anhydrous hydrogen peroxide is a colorless syrupy liquid with a relative density of 1.44.

Hydrogen peroxide is manufactured in large amounts by the electrolysis of aqueous solutions of sulfuric acid, potassium hydrogen sulfate or acidic ammonium bisulfate. It is also prepared by the action of acids on other peroxides, such as those of sodium and barium.

Hydrogen peroxide acts as both an oxidizing and a reducing agent. Its oxidizing properties are used for the bleaching of substances such as hair, ivory, feathers and delicate fabrics, which otherwise would be damaged by the use of other agents. It is also used in medicine in 3% aqueous solutions, as an antiseptic and mouthwash.

Likewise, hydrogen peroxide is used for restoring the original colors of paintings that have darkened by the conversion of the white lead used in the paintings into black lead sulfide. Hydrogen peroxide oxidizes the black lead sulfide, converting it into white lead sulfate. It is also used as a source of oxygen in the fuel mixture for rockets and torpedoes. As a reducing agent, it reacts only with easily reduced chemical products, such as silver oxide and potassium permanganate.

Uses

  • Hydrogen peroxide is used as both an anti-bacterial and a bleaching agent in hemodialyzer filters.

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