Peroxide-based bleach

This bond is fairly weak and is often broken in chemical reactions of peroxides, giving rise to very reactive oxygen species, which are the active agents of the bleach.

Peroxide-based bleaches became common household products in the late 20th century, being the base of many laundry detergent formulations.

Most of these products are adducts of hydrogen peroxide (H2O2 or HOOH), that is, solids that contain H2O2 trapped in a crystal structure together with another material like sodium carbonate or urea.

An exception is sodium perborate, which has a cyclic structure containing two O-O single bonds.

All peroxide-based bleaches release hydrogen peroxide when dissolved in water.