decolorization

Decolorization is the process of removing color from a substance. This is often achieved through bleaching, which aims to make something white or whiter.12

Chemicals like chlorine, sodium hypochlorite, and hydrogen peroxide are commonly used for bleaching textiles and paper. In organic chemistry, color arises from a molecule's ability to absorb specific wavelengths of light. When a substance absorbs certain colors from white light, the remaining transmitted light determines its perceived color. Decolorization, therefore, involves altering the substance's chemical structure to prevent this absorption of light, or to remove the chromophores responsible for color.342