Overview
Trigonox 42S (tert-butyl peroxy-3,5,5-trimethylhexanoate) is a liquid organic peroxide used as an efficient initiator for ethylene polymerization under high pressure, in both autoclave and tubular processes. As one of the recommended international brand products in our organic peroxide range, Trigonox 42S is supplied with supply chain resource support for formulators sourcing initiators for polymer production, thermoset composites, and acrylics.
Specifications
| Active oxygen | 6.74 % |
| Appearance | Clear liquid |
| Assay | ≥ 97.0 % |
| Color | 50 Pt-Co / APHA max. |
| Hydroperoxides as TBHP | 0.099 % |
| Inorganic + organic hydrolysable chloride | ≤ 150 mg/kg |
| Density, 20°C | 0.900 g/cm³ |
| Viscosity, 20°C | 5 mPa.s |
Applications of Trigonox 42S Across Market Segments
Trigonox 42S can be used for the market segments of polymer production, thermoset composites, and acrylics, with different applications and functions across each. Depending on reaction conditions, this initiator is active in the temperature range of 210-240°C for ethylene polymerization, and combinations with other peroxides are applied in practice to obtain a wide spectrum of polymerization temperatures.
Why Broad Temperature Range Matters for Trigonox 42S
Trigonox 42S can be used as an initiator for the solution (co)polymerization of acrylates and methacrylates in the temperature range of 90-175°C, among others for the manufacture of coatings. It can also be applied as an initiator for the bulk and suspension (co)polymerization of acrylates and methacrylates in the temperature range of 90-130°C, and may be used for the (co)polymerization of styrene in the temperature range of 90-140°C. Because this initiator spans such a wide processing window, formulators can standardize on a single grade across several polymerization routes rather than qualifying separate initiators for each temperature range.
Why Sourcing Consistency Matters for Buyers
Because active oxygen content and assay directly affect initiator efficiency, formulators should confirm current specifications against the latest technical data sheet before scheduling a production run. A supplier that consistently delivers this initiator within its stated active oxygen, assay, color, and chloride specifications reduces the need to re-qualify a reactor recipe with every new batch.
This is particularly relevant for ethylene polymerization and acrylate coating production, where reactor efficiency and polymerization temperature window are directly tied to initiator purity and dosing consistency. Buyers should confirm current batch documentation against the latest technical data sheet before finalizing a production schedule.
What to Consider When Sourcing Trigonox 42S
Buyers evaluating Trigonox 42S for the first time should confirm which of the primary use cases applies to their process, ethylene polymerization, acrylate or methacrylate (co)polymerization, styrene (co)polymerization, or thermoset composite curing, since dosing practices and temperature windows differ across these applications even though the same product is used. Requesting the current certificate of analysis alongside the safety data sheet is a practical way to confirm that a given batch matches the active oxygen, assay, and chloride specifications listed above.
Packaging, storage temperature requirements, and transport classification should also be confirmed directly with the supplier, since organic peroxides are subject to specific handling and shipping regulations. Buyers sourcing this initiator for time-sensitive production schedules should discuss lead time and temperature-controlled logistics requirements before finalizing an order.
General Handling and Storage Guidance
As with other organic peroxides, Trigonox 42S should be stored in accordance with the supplier’s safety data sheet, typically in a cool, dry, well-ventilated area away from direct sunlight, incompatible materials, and sources of heat or ignition. Personnel handling this material should follow the personal protective equipment and handling procedures specified in the SDS, since organic peroxides can decompose exothermically under certain storage or contamination conditions.
Buyers should request and review the current safety data sheet for this grade prior to receipt, and confirm that on-site storage conditions, including temperature control, are compatible with the product’s recommended storage requirements. Proper inventory rotation and adherence to the stated shelf life help maintain the assay and performance characteristics described above.
Where to Source This Product
Thousands Chemicals supplies Trigonox 42S and related organic peroxide products through our digital B2B marketplace, with supply chain resource support for formulators sourcing initiators for polymer production, thermoset composites, and acrylics coatings. Peroxide handling and classification are commonly referenced against guidelines published by ASTM International. Our team can help confirm packaging, lead times, and technical documentation for your target application and order volume.
Documentation We Can Provide
For qualified buyers, we can provide the safety data sheet and, where available, a certificate of analysis for the specific batch of Trigonox 42S being quoted. Specifications listed on this page reflect the manufacturer’s published values; buyers should confirm current documentation before finalizing a purchase order.
FAQ
What is Trigonox 42S used for?
It is used as an initiator for ethylene polymerization, acrylate and methacrylate (co)polymerization, styrene (co)polymerization, and as an initiator across thermoset composite and acrylics market segments.
What is the active oxygen content of Trigonox 42S?
It has an active oxygen content of 6.74%, with an assay of 97.0% minimum.
What temperature range is Trigonox 42S active across?
Depending on the application, it is active from 90°C for acrylate and styrene (co)polymerization up to 210-240°C for ethylene polymerization.
Can you provide technical documentation and bulk pricing for Trigonox 42S?
Yes, technical data sheets and SDS documentation are available on request, and our team can provide bulk pricing and lead times based on your target volume and delivery location.
Get a Quote for Trigonox 42S
Contact our team for pricing, documentation, and lead time on Trigonox 42S. Our sourcing specialists can help confirm whether this initiator matches your process requirements before you place an order.
