Overview
Trigonox 121 is tert-Amyl peroxy-2-ethylhexanoate, a clear liquid organic peroxide used to initiate the (co)polymerization of acrylates and methacrylates in the temperature range between 70°C and 120°C. As one of the recommended international brand products in our organic peroxide range, Trigonox 121 is supplied with supply chain resource support for formulators sourcing a liquid peroxide initiator for polymer, thermoset composite, and acrylics production.
Product Identification
| Brand | Nouryon |
| Chemical Short Name | TAPEH (tert-Amyl peroxy-2-ethylhexanoate) |
| Product CAS Nr | 686-31-7 |
Specifications
| Active oxygen | 6.60-6.95 % |
| Assay | ≥ 95.0 % |
| Hydroperoxides as TAHP | ≤ 0.20 % |
Characteristics
| Appearance | Clear liquid |
Applications of Trigonox 121 in Acrylate and Vinyl Acetate Polymerization
Trigonox 121 can be applied in suspension as well as in solvent and bulk polymerization. It is also used for the copolymerization of styrene and acrylonitrile and for vinyl acetate based copolymers, supporting formulation work across polymer production, thermoset composites, and acrylics production market segments.
Why the 70-120°C Working Range Matters
Because this initiator is specified to work across a relatively wide temperature range of 70°C to 120°C, formulators have some flexibility in matching Trigonox 121 to a specific reactor profile or cure schedule. This range, combined with its clear liquid form, can simplify metering and dosing compared with solid or paste-carrier peroxide formats.
Why Sourcing Consistency Matters for Buyers
Because active oxygen content and assay directly affect initiation efficiency, formulators should confirm current specifications for this initiator against the latest technical data sheet before scheduling a production run. A supplier that consistently delivers this initiator within its stated active oxygen, assay, and hydroperoxide impurity specifications reduces the need to re-qualify a polymerization recipe with every new batch.
This is particularly relevant for acrylate, methacrylate, and vinyl acetate copolymer producers, where initiation efficiency and polymerization temperature window are directly tied to peroxide 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 121
Buyers evaluating Trigonox 121 for the first time should confirm that its active oxygen (6.60-6.95%) and assay (≥ 95.0%) match their reactor dosing requirements, and should review whether the suspension, solvent, or bulk polymerization process they run falls within this initiator’s established 70-120°C working range. Requesting the current certificate of analysis alongside the safety data sheet is a practical way to confirm that a given batch matches the 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, this product should be stored in accordance with the supplier’s safety data sheet, typically in a cool, temperature-controlled, 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 Trigonox 121 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 active oxygen and performance characteristics described above.
Where to Source This Product
Thousands Chemicals supplies Trigonox 121 and related organic peroxide products through our digital B2B marketplace, with supply chain resource support for formulators sourcing initiators for polymer, thermoset composite, and acrylics production. 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 121 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 121 used for?
It is used to initiate the (co)polymerization of acrylates and methacrylates, styrene-acrylonitrile, and vinyl acetate based copolymers, in the temperature range of 70°C to 120°C.
What is the active oxygen content of Trigonox 121?
It has an active oxygen content of 6.60-6.95%, with an assay of ≥ 95.0% and hydroperoxides as TAHP limited to ≤ 0.20%.
What polymerization processes is Trigonox 121 suitable for?
It can be applied in suspension, solvent, and bulk polymerization processes.
Can you provide technical documentation and bulk pricing for Trigonox 121?
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 121
Contact our team for pricing, documentation, and lead time on Trigonox 121. Our sourcing specialists can help confirm whether this initiator matches your process requirements before you place an order.
