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| Synonyms:TAED Molecular Formula:C10H16N2O4 Molecular Weight: 228.24 HS Code: 2924199090 Grade:Cosmetic Grade, Industrial grade90% 92% 99% Hazard Class:General Cargo | |||||||||
10543-57-4
bosschemical
10543-57-4
Tetraacetylethylenediamine (TAED) is an amide compound in which two nitrogen atoms in the ethylenediamine molecule are each attached to two acetyl groups. It is also the most widely used bleaching activator in the detergent industry. Its chemical formula is usually written as:
C10H16N2O4 (CH3CO-N(CH2CH2)-N-COCH3 skeleton structure, CAS No.: 10543-57-4, EINECS No.: 234-123-8, molecular weight approximately 228.25)
It is a white crystalline powder or granules at room temperature (commercially available products are mostly granules), tasteless or with a slight odor, with a melting point of approximately 149-154℃ (accompanied by decomposition). It decomposes upon heating under normal pressure, is slightly soluble in water, and soluble in most organic solvents. TAED is chemically stable and can be stored for a long time in a dry state, but it can be activated by hydrogen peroxide in alkaline detergent solutions.
From a molecular structure perspective, the four acetyl groups (-COCH3) on the ethylenediamine skeleton of TAED are its "activation mechanism": in the washing solution, TAED reacts with hydrogen peroxide (released by sodium percarbonate and sodium perborate) to produce peracetic acid (PAA) and triacetylated ethylenediamine. Peracetic acid is a true bleaching and bactericidal species, with an oxidizing power far stronger than hydrogen peroxide itself, and it can bleach efficiently at relatively low temperatures (40-60℃)—this is the structural basis for TAED's ability to achieve "low-temperature bleaching".
Chemically, TAED is an N-acyl compound that will undergo accelerated hydrolysis or reaction when exposed to strong alkalis or strong oxidants. It is low in toxicity and has virtually no skin irritation, but the dust may irritate the respiratory tract. It should be stored in a dry place and should avoid direct contact with strong oxidants.
Industrial-grade TAED refers to products intended for industrial applications such as detergents, cleaning agents, textiles, and papermaking. Common specifications include a purity of 90% or higher (most commercially available products are 92%, with high-purity products reaching 99%). Compared to reagent-grade products, industrial-grade products place greater emphasis on the following indicators:
Content (purity of active ingredient)
Industrial grade generally requires a content of 90% or more (92% is common), and the content determines the bleaching and activation efficiency and the amount added to the formula.
Moisture
Moisture content affects storage stability and compatibility with peroxide systems, and must be strictly controlled.
Melting point
The melting point of pure product is about 149-154℃. Abnormal melting point often indicates impurities or process problems and is an important reference indicator of purity.
Particle size and mechanical strength
Granular TAED is used in detergent formulations and requires uniform particle size and good strength to avoid dust, clumping, and mixing stratification.
Heavy metal limits
When used in daily chemical detergent products, there are safety requirements for the content of heavy metals, which is an important indicator to protect consumers' health.
The core value of industrial-grade TAED lies in activating the low-temperature bleaching and sterilization capabilities of peroxide systems, and its applications are concentrated in the following areas:
( 1 ) TAED is a bleaching activator of the peroxide system in laundry powder, laundry liquid and laundry pods. When combined with sodium percarbonate, it generates peracetic acid at low temperature, achieving efficient stain removal, whitening and sterilization. It is a standard component of laundry powder in the European market.
( 2 ) Color bleach powder and oxygen cleaners use sodium percarbonate + TAED as the core formula. They use peracetic acid released at low temperature to bleach clothes without damaging the color. Our commonly used stain removal products may contain it.
TAED is added to detergent powder and dishwasher detergent tablets to help remove tough stains like tea, coffee and grease and also has a sterilising effect during washing, making tableware cleaner and more hygienic.
TAED is used as a key component in the low-temperature oxygen bleaching process of natural fibre fabrics such as cotton and linen. It can complete bleaching at lower temperature, reduce energy consumption and fibre damage, and is an important energy-saving bleaching agent in textile printing and dyeing industry.
TAED is used as activator in pulp bleaching . It is compatible with hydrogen peroxide systems and enhances the bleaching efficiency. It is used for the production of tissue paper and packaging paper to make the pulp meet the required whiteness under mild conditions.
When combined with sodium percarbonate, TAED can generate peracetic acid in situ, which can be used in disinfectant wipes, surface cleaners, and toilet cleaning products, providing an oxygen-based disinfection system that combines cleaning and sterilization functions.
TAED is used in CIP (Cleaning in Place) systems for the food, beverage, dairy and brewing industries. It is used with peroxides for cleaning pipes and equipment at low temperatures. It offers decontamination and sterilisation and lowers energy consumption during high temperature cleaning.
With the promotion of oxygen-based cleaning and low-temperature bleaching concepts, the application scope of industrial-grade TAED continues to expand, including areas such as medical textile washing and disinfection, professional cleaning services, and pet care cleaning products.
It should be noted that industrial-grade specifications do not equate to "risk-free": Although TAED is low in toxicity and mild, inhalation of dust may irritate the respiratory tract, so protective masks should be worn and operations should be carried out in well-ventilated areas; when used in combination with peroxides, peracetic acid will be produced, and the formulation design must control the concentration to avoid high-concentration contact with skin and eyes.
Tetraacetylethylenediamine (TAED, CAS No. 10543-57-4) is an amide compound consisting of ethylenediamine nitrogen atoms linked to four acetyl groups. It is a white crystalline powder or granules at room temperature with a melting point of approximately 149-154℃. It is a classic bleaching activator in the detergent industry. In daily life, we encounter it through laundry powder and detergent pods, dishwasher detergents, oxygen-based cleaners, professional laundry services, textiles, and paper products. In industry, TAED with a content of over 90% is widely used in low-temperature bleaching activation of laundry and dishwasher detergents, low-temperature bleaching of textiles, pulp bleaching, disinfection cleaning, and CIP industrial cleaning, serving as a green and energy-saving chemical that revitalizes peroxides at low temperatures.
