Tetraacetylethylenediamine

Tetraacetylethylenediamine (TAED) is a bleaching agent commonly used in laundry detergents and dishwasher detergents. It is a white to off-white granular powder that is soluble in water and has a slight, characteristic odor.

Chemical Structure

TAED is a derivative of ethylenediamine, a type of amine. It has four acetyl groups attached to the nitrogen atoms of the ethylenediamine molecule, hence the name tetraacetylethylenediamine. The chemical formula of TAED is C10H16N2O4.

Production

TAED is produced by the acetylation of ethylenediamine. This involves the reaction of ethylenediamine with acetic anhydride in the presence of a catalyst such as sodium acetate.

Uses

TAED is primarily used as a bleach activator in laundry and dishwasher detergents. It is typically combined with hydrogen peroxide-releasing compounds such as sodium percarbonate or sodium perborate. In this role, TAED enables bleaching at lower temperatures by reacting with hydrogen peroxide to form peracetic acid, a powerful bleach.

TAED is also used in some disinfectants and sanitizers, where it enhances the germ-killing power of the product.

Safety

TAED is generally considered safe for use in household products. However, like all chemicals, it should be handled with care. Direct contact with the eyes or skin can cause irritation, and inhalation of dust can cause respiratory irritation.

Environmental Impact

TAED is readily biodegradable and is not expected to persist in the environment. It is not considered to be bioaccumulative or toxic to aquatic life.