Trigonox 23-C75 is a liquid organic peroxide initiator supplied at 75% concentration, based on tert-butyl peroxyneodecanoate (CAS 26748-41-4). It is formulated for polymer production, thermoset composite manufacturing, and acrylics production. This page summarizes the specification data published for this initiator so producers and formulators can evaluate it for sourcing.
What Is Trigonox 23-C75?
Trigonox 23-C75 is a clear liquid peroxide initiator with an active oxygen content of 4.84–4.98% and an assay of 74.0–76.0%, consistent with its “C75” designation. It is based on tert-butyl peroxyneodecanoate (CAS 26748-41-4), a peroxyester used as a radical initiator in polymer production. Color is limited to ≤ 30 Pt-Co / APHA, hydroperoxides as TBHP are kept to ≤ 0.099%, and inorganic plus organic hydrolysable chloride is limited to ≤ 150 mg/kg, reflecting a purity level suited to controlled polymerization and curing processes.
Technical Specifications of Trigonox 23-C75
The table below lists the core specification and physical properties published for this product.
| Property | Value |
|---|---|
| Appearance | Clear liquid |
| Active oxygen | 4.84–4.98% |
| Assay | 74.0–76.0% |
| Color | ≤ 30 Pt-Co / APHA |
| Hydroperoxides as TBHP | ≤ 0.099% |
| Hydrolysable chloride (inorganic + organic) | ≤ 150 mg/kg |
| Density, 0℃ | 0.877 g/cm³ |
| Viscosity, 0℃ | 17 mPa.s |
| CAS number | 26748-41-4 (tert-butyl peroxyneodecanoate) |
Compared with higher-temperature-decomposing peroxyesters, tert-butyl peroxyneodecanoate grades are among the more reactive, lower-temperature initiators, which is why viscosity at 0℃ (17 mPa.s) rather than at room temperature is the reference point on the specification sheet: this product is typically stored and handled cold to preserve shelf life and control decomposition rate before use. Formulators comparing initiators across a portfolio should note that the low reference temperature on the data sheet is a handling indicator, not a statement that the product cannot be used at other process temperatures within its qualified range.
How This Initiator Is Used in Polymerization
As a peroxyester-type initiator, tert-butyl peroxyneodecanoate decomposes at relatively low temperatures to generate free radicals that start the polymerization or curing reaction. Trigonox 23-C75 is used across three market segments: polymer production, thermoset composite manufacturing, and acrylics production, each drawing on its low-temperature reactivity to control reaction onset and rate in their respective processes.
Applications for Trigonox 23-C75
Trigonox 23-C75 can be used across polymer production, thermoset composite, and acrylics production market segments, each with its own dosage and process requirements. Producers evaluating this organic peroxide initiator for a specific line should confirm decomposition temperature, half-life, and recommended dosage against their own process conditions before scaling to production volume, since optimal initiator loading depends on batch size, equipment design, and target cure or molecular weight profile.
Because low-temperature peroxyester initiators like Trigonox 23-C75 begin generating radicals at moderate process temperatures, they are often selected where a formulator wants to initiate a reaction without applying significant external heat, or where a cold-cure or low-temperature process window is required to protect heat-sensitive components in the formulation. As with any low-temperature initiator, cold-chain storage and handling discipline are important to preserve its full activity through to point of use.
Handling Considerations
As with other organic peroxide initiators, Trigonox 23-C75 should be stored, transported, and handled in line with standard organic peroxide practice: keep it refrigerated within its recommended storage temperature range, away from heat and direct sunlight, and separate from contamination sources and incompatible materials. Buyers should request the current Technical Data Sheet and Safety Data Sheet from the supplier for full handling, storage temperature, and shelf-life guidance specific to their shipment and packaging format before use.
Sourcing This Initiator Through chemicalsstore.com
Polymer producers, composite manufacturers, and formulators sourcing Trigonox 23-C75 can contact chemicalsstore.com for current availability, supply chain resource support, and coordination on order volumes, packaging, and documentation requests, including the manufacturer’s Technical Data Sheet and Safety Data Sheet. As a Nouryon-branded organic peroxide, it can also be sourced together with related initiators and accelerators to simplify procurement for a single production batch.
Frequently Asked Questions About Trigonox 23-C75
What is Trigonox 23-C75 made of?
It is tert-butyl peroxyneodecanoate (CAS 26748-41-4) supplied as a 74.0–76.0% assay clear liquid, with an active oxygen content of 4.84–4.98%.
What is it used for?
It is used as a radical initiator across polymer production, thermoset composite manufacturing, and acrylics production applications.
What is its viscosity and density?
Viscosity is 17 mPa.s at 0℃, and density is 0.877 g/cm³ at 0℃, values that are specified at 0℃ because this initiator is typically handled cold.
Why is it supplied at 75% concentration?
The 75% assay level, reflected in the “C75” designation, balances active peroxide content against handling safety and dosing precision for production-scale processes.
How should it be stored?
As with other low-temperature organic peroxide initiators, keep it refrigerated within its recommended storage temperature range, away from heat and direct sunlight. Contact the supplier for the current Technical Data Sheet and Safety Data Sheet for full storage guidance.
To request current availability, technical documentation, or a formal quotation for Trigonox 23-C75, contact the chemicalsstore.com sourcing team with your target volume and application details.
