Tetra Acetyl Ethylene Diamine (TAED)

Product Description

Technical Information
Chemical Name: Tetra Acetyl Ethylene Diamine
Synonyms: TAED
Molecular Formula: C₁₀H₁₆O₄N₂
Molecular Weight: 228
CAS Number: 10543-57-4

Product Properties Standard Specifications
Content: 90-94%
Bulk Density: 450-750g/L
Particle Size Distribution: On 1.700mm Max. 1.0 Through 0.150mm Min. 3.0%
Moisture: Max. 2.0%
Ferric: Max. 0.002%
Cuprum: Max. 0.0004%
Appearance: White or color granules
Packing: 25kgs in Kraft paper bags plus PE liner

Description
Many household and personal care products are formulated with an active oxygen-releasing material to effect removal of stain and soil. Oxygen-releasing materials have an important limitation; Their activity is extremely temperature-dependent. Temperatures in excess of 60 DEG C are normally required to achieve any bleach effectiveness in an aqueous wash system. Especially for cleaning fabrics, high-temperature operation is both economically and practically disadvantageous. Thus, bleaching activators have been applied in an object to activate bleaching reaction at low temperatures. These activators, also known as bleach precursors, often appear in the form of carboxylic acid esters or amides. In an aqueous liquor, anions of hydrogen peroxide react with the ester or amide to generate a corresponding peroxyacid which oxidizes the stained substrate. Commercial application of this technology is found in certain fabric bleaching detergent powders that mainly incorporating tetraacetylethylenediamine (TAED). TAED used for detergent industry is in granular form, free-flowing, and has several colors (mainly white, green, blue) to choose depending on userschoice.

Applications
TAED is typically applied in domestic laundry detergents, automatic dish washing, bleach boosters, laundry soak treatments, to improve the washing performance.

TAED could be applied in textile bleaching to react with hydrogen peroxide in the bleach bath to produce a stronger oxidant. The use of TAED as bleach activator enables bleaching at lower process temperatures and under milder pH conditions.

In pulp and paper industry, TAED is suggested to react with hydrogen peroxide to form a pulp bleaching solution. The addition of TAED into pulp bleaching solution results in a satisfactory bleaching effect.