TAED

Catalog NumberHG10543574

CAS Number10543-57-4

CategoryNon-ionic Surfactants

Molecular Weight

228.25

Molecular Formula

C10H16N2O4

Appearance

Solid

Application

Use as bleaching activator.; For example, used intextile, printing and dyeing, household cleaning products.; Use in conjunction with oxygen-based bleaching agent,can reduce bleaching temperature.

Active Content

95%

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Case Study

TAED as a Bleach Activator for Alkyl Polyglycoside Decolorization

Yanmei, Liu, et al. Carbohydrate polymers 112 (2014): 416-421.

Tetraacetylethylenediamine (TAED) serves as a bleach activator that facilitates the removal of polysaccharide and saccharide-related coloring impurities from alkyl polyglycosides at moderate temperatures.
Experimental Protocol: The bleaching system employs a TAED/H₂O₂/NaHCO₃ formulation with an optimal molar ratio of TAED to H₂O₂ at 0.06. H₂O₂ is applied at 8.6% w/w, NaHCO₃ at 3.2% w/w, and MgO at 0.13% w/w as a stabilizer. The reaction temperature ranges from 50 to 65 °C with a treatment duration of 8 hours. Decolorization efficiency is monitored by measuring the extinction coefficient at 470 nm.
Performance Evaluation: The TAED-activated peroxide system achieves a 90% reduction in the extinction coefficient of alkyl polyglycosides at 470 nm, from an initial value of 0.85 to 0.085 after 8 hours. The optimal bleaching temperature is 60 °C, at which the maximum decolorization rate of 95% is attained. The TAED/H₂O₂ ratio of 0.06 is critical, as ratios above 0.10 lead to excessive peroxide decomposition without additional bleaching benefit. The final product meets industrial color standards with a Gardner color value below 3.

TAED as a Bleach Activator for Low-Temperature Cellulose Bleaching

Wen, Zuoqiang, et al. IOP Conference Series: Materials Science and Engineering. Vol. 322. No. 4. IOP Publishing, 2018.

Tetraacetylethylenediamine (TAED) functions as a bleach activator that enables efficient low-temperature bleaching of crude cellulose extracted from jute fiber.
Experimental Protocol: The bleaching system consists of a TAED/H₂O₂ formulation with an optimized molar ratio of H₂O₂ to TAED at 1:0.7. The concentration of H₂O₂ is 0.09 mol/L at pH 8. The bleaching temperature is 70 °C with a treatment time of 60 minutes. Whiteness is measured using a spectrophotometer according to the CIE whiteness index.
Performance Evaluation: The TAED/H₂O₂ system increases the whiteness index of crude jute cellulose from 15.7 to 30.8 after 60 minutes at 70 °C, representing a 96% improvement. This performance is comparable to conventional high-temperature bleaching at 90 °C without TAED, which achieves a whiteness index of 31.2. The cellulose viscosity is well preserved, with a degree of polymerization retention of 85% compared to 70% for conventional bleaching. The optimal pH of 8 minimizes carbohydrate degradation while maximizing peracetic acid generation from TAED.

TAED as a Bleach Activator for Low-Temperature Cotton Bleaching

Xu, Changhai, et al. Carbohydrate polymers 92.1 (2013): 249-253.

Tetraacetylethylenediamine (TAED) acts as a peroxide activator that generates peracetic acid in situ for efficient low-temperature bleaching of cotton textiles.
Experimental Protocol: The bleaching bath contains 15 mmol/L TAED and 30 mmol/L H₂O₂ at pH 7 to 8, adjusted with sodium bicarbonate as the alkaline agent. The temperature is maintained at 70 °C for 60 minutes using a liquor-to-fabric ratio of 20:1. Bleaching efficiency is evaluated by measuring the CIE whiteness index and the degree of cellulose damage via fluidity measurements.
Performance Evaluation: The TAED-activated peroxide system achieves a CIE whiteness index of 68.5 at 70 °C, compared to 55.2 for the control without TAED. This represents a 24% improvement in whiteness at a 20-degree Celsius lower temperature than conventional bleaching. The fluidity of the treated cotton is 4.2 reciprocal poise, indicating minimal cellulose degradation. Sodium bicarbonate proves to be the most effective alkaline agent, outperforming sodium hydroxide and sodium carbonate. The optimal TAED concentration of 15 mmol/L generates a peracetic acid concentration of 8.5 mmol/L within 30 minutes.

• Molecular Weight: 228.25
• Molecular Formula: C10H16N2O4
• Appearance: Solid
• Application: Use as bleaching activator.; For example, used intextile, printing and dyeing, household cleaning products.; Use in conjunction with oxygen-based bleaching agent,can reduce bleaching temperature.
• Active Content: 95%