Trigonox 36-C75 is a liquid organic peroxide initiator used for the (co)polymerization of ethylene, vinyl chloride, vinylidene chloride, and (meth)acrylates. For overseas buyers sourcing polymerization initiators for PVC and polyolefin production, Trigonox 36-C75 offers a well-defined active oxygen content and viscosity profile suited to high-pressure autoclave and tubular processes.

Trigonox 36-C75 Key Properties
Trigonox 36-C75 is chemically di(3,5,5-trimethylhexanoyl) peroxide supplied as a 75% solution in isododecane (CAS 3851-87-4, molecular weight 314.5 g/mol). It is a clear liquid with an assay of 74.0-76.0% and an active oxygen content of 3.76-3.87%, a color of ≤20 Pt-Co (APHA), and inorganic plus organic hydrolysable chloride of ≤250 mg/kg. At 0°C it has a density of 0.885 g/cm³ and a viscosity of 13.0 mPa.s. Full reference data is available via PubChem.
Key Features
- Efficient initiator for high-pressure ethylene polymerization in autoclave and tubular processes
- Suitable for suspension polymerization of vinyl chloride in the 50-70°C range
- Can be combined with other peroxides to achieve a wider polymerization temperature spectrum
- Well-defined active oxygen content and low chloride impurity levels for consistent initiator performance
Main Applications of Trigonox 36-C75
For the polymerization of ethylene, Trigonox 36-C75 serves as an efficient initiator under high pressure in both autoclave and tubular processes; combinations with other peroxides are commonly applied in practice to obtain a wider spectrum of polymerization temperatures. For the polymerization of vinyl chloride, it is applied as an initiator for the suspension polymerization process in the temperature range of 50-70°C. It is also used for the (co)polymerization of vinylidene chloride and (meth)acrylates. Buyers can review related organic peroxide products through our bulk chemicals catalog for downstream sourcing options.
Polymer producers sourcing this initiator at scale often coordinate directly on packaging, cold-chain logistics, and lot consistency to align with continuous polymerization line schedules.
Safety and Handling Considerations
As an organic peroxide, this initiator requires temperature-controlled storage and transport and should be handled according to standard organic peroxide safety practices, including appropriate personal protective equipment, controlled storage temperature, and sealed packaging during transfer and dosing operations.
Frequently Asked Questions About Trigonox 36-C75
- What type of initiator is Trigonox 36-C75? It is a liquid organic peroxide, chemically di(3,5,5-trimethylhexanoyl) peroxide, supplied as a 75% solution in isododecane.
- What is the CAS number and molecular weight? CAS 3851-87-4, molecular weight 314.5 g/mol.
- What is its active oxygen content and assay? Active oxygen of 3.76-3.87% with an assay of 74.0-76.0%.
- How should this material be stored? Under temperature-controlled conditions typical for organic peroxides, with standard handling precautions and sealed packaging.
- Can Thousands Technology supply this material in bulk? Yes, Thousands Technology offers supply chain resource support for bulk sourcing of this and related organic peroxide initiators for overseas buyers.
Polymer producers and chemical distributors looking to source Trigonox 36-C75 or related organic peroxide initiators for ethylene and vinyl chloride polymerization are welcome to contact our team for product information, packaging options, and supply chain resource support.