Nouryon Trigonox 421 1,1,3,3-Tetramethylbutyl peroxy-2-ethylhexanoate 22288-43-3

Product Information::

• Product Name: Trigonox 421
• Chemical name: 1,1,3,3-Tetramethylbutyl peroxy-2-ethyl hexanoate
• Suitable for autoclave and tube polymerization processes
• Often used in combination with other peroxides or oxides
• For styrene polymerization
• Also used in suspension polymerization of acrylic acid and methacrylic acid, copolymerization processes, coating production

Product Specification::

• CAS No.: 22288-43-3
• EINECS/ELINCS No. 244-894-2
• Molecular weight: 272.4
• Active oxygen content: 5.87%
• Specification: Active oxygen ≥5.29%
• Appearance: transparent liquid
• Content: ≥90.0%
• Color: 50 Pt-Co / APHA max.
• Hydroperoxide content: ≤0.25 mg/kg
• Inorganic + organic hydrolyzable chlorine content: ≤250 mg/kg
• Density (0°C): 0.914 g/cm³
• Viscosity (0°C): 9.3 mPa.s

Half-life data::

• Half-life at different temperatures:
  • 109°C (0.1 hours)
  • 88°C (1 hour)
  • 69°C (10 hours)
• Relevant formulas and values

thermal stability::

• Organic peroxides are thermally unstable and may undergo self-accelerating decomposition
• Self-accelerating decomposition temperature (SADT): 30°C
• Emergency temperature (Tₑ): 20°C
• Control temperature (Tc): 15°C
• Method: Thermal accumulation storage test

stockpile::

• Recommended maximum storage temperature: 5°C
• Minimum temperature: -20°C (to avoid crystallization)

Packaging and transportation::

• Standard packaging is 30 liter HDPE drums
• Organic peroxide class D, liquid, temperature controlled, grade 5.2
• UN3113

Security and handling::

• Keep containers closed and away from heat, ignition sources and sunlight.
• Avoid weighing and dispensing in storage rooms
• Avoid exposure to reducing agents, acids, alkalis and heavy metal compounds
• For detailed information, please refer to the Safety Data Sheet (SDS)

Main decomposition products::

• Carbon dioxide, 2,2-dimethylpropane, acetone, heptane, heptene, 2,4,4-trimethyl-2-pentanol, 2-(1-ethylpentyloxy)-2,4,4-trimethylpentane

statement denying or limiting responsibility::

• All information and advice is provided in good faith and without warranty
• Users must make their own judgment on the suitability of the product
• This information supersedes previously posted information