why hydrogen peroxide is used as bleaching agent
Hydrogen peroxide Hydrogen peroxide is seen as an environmentally safe alternative to chlorine-based bleaches, as it degrades to form oxygen and water and it is generally recognized as safe as an antimicrobial agent by the U.S. Food and Drug Administration (FDA).[45]
Laundry symbol An empty triangle (formerly lettered Cl) allows the bleaching with chlorine or non-chlorine bleach. Two oblique lines in the triangle prohibit chlorine bleaching. A crossed triangle prohibits any bleaching.