Trigonox 125-CL75

Product Line Organic peroxides

Trigonox 125-CL75 is an initiator for (co)polymerization of styrene, ethylene, acrylonitrile, vinyl chloride, vinylidine chloride and (meth)acrylates, and polyols.

  • Brand

  • Chemical family

    Organic peroxide
  • CAS number

  • Physical form

  • Regional availability

    Asia Pacific, Latin America
  • Molecular Weight

  • Chemical name

    tert-Amyl peroxypivalate, 75% solution in isoparrafin
  • Molecular drawing

    Organic peroxide
  • Applications

    Polymerization of ethylene: Trigonox 125-CL75 is an efficient initiator for the ethylene polymerization under high pressure in both autoclave and tubular processes. To obtain a wide spectrum of polymerization temperatures, combinations with other peroxides are applied in practice. Polymerization of vinyl chloride: Trigonox 125-CL75 can be applied as an initiator for the suspension polymerization of vinyl chloride in the temperature range between 50°C and 65°C. Trigonox 125-CL75 may be used in combination with other initiators to increase reactor efficiency.

Market Segments

Polymer production

Detailed description

Trigonox 125-CL75 is an initiator (75% solution in odorless mineral spirits) for (co)polymerization of ethylene, styrene, vinyl chloride, vinylidine chloride, acrylates and methacrylates, and polyols.


  • Polymerization initiator


  • LDPE,
  • Polymer Polyols,
  • Polystyrene,
  • PVC
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