Overview
Trigonox 22-E50 is an initiator, supplied as a 50 percent active ingredient in mineral oil, for the (co)polymerization of styrene, acrylonitrile, acrylates, and methacrylates. As one of the recommended international brand products in our organic peroxide range, Trigonox 22-E50 is supplied with supply chain resource support for formulators sourcing a reliable initiator for styrenic and acrylic polymerization systems.
Specifications
| Active oxygen | 6.02-6.27 % |
| Appearance | Clear liquid |
| Assay | 49.0-51.0 % |
| Color | 30 Pt-Co / APHA max. |
| Hydroperoxides as TBHP | 0.099 % |
Characteristics
| Density, 20 °C | 0.900 g/cm³ |
| Viscosity, 20 °C | 35 mPa.s |
Applications of Trigonox 22-E50
Polymerization of styrene: Trigonox 22-E50 can be used for the bulk polymerization of styrene in the temperature range between 90 and 120°C.
Other applications: Trigonox 22-E50 can also be used for the (co)polymerization of styrene, acrylonitrile, acrylates, and methacrylates in the temperature range between 95°C and 125°C.
Why Cure Temperature Range Matters for Trigonox 22-E50
Selecting an initiator with the right decomposition temperature range is central to controlling reaction rate, gel time, and final polymer properties in styrenic and acrylic systems. Because this initiator is active across a 90 to 125°C range depending on the specific monomer system, formulators have some flexibility to match initiator selection to their existing process temperature rather than redesigning the process around the initiator.
Supplied at 50 percent active ingredient in mineral oil, this initiator is formulated for easier handling and metering compared to higher-concentration alternatives, which is relevant for production environments where consistent dosing supports batch-to-batch consistency.
The mineral oil carrier also affects how this initiator blends into a monomer system during mixing, since a diluted initiator generally disperses more evenly than a neat, high-concentration peroxide when added under standard plant mixing conditions. This can reduce the risk of localized hot spots during the early stage of polymerization, particularly in larger batch reactors where mixing uniformity is harder to control than in small-scale trials.
What to Consider When Sourcing Trigonox 22-E50
When sourcing an initiator for styrene, acrylonitrile, acrylate, or methacrylate polymerization, formulators typically evaluate active oxygen content, assay, and the target reaction temperature range against their existing process conditions. Working with a supplier that can provide consistent documentation and responsive technical support can help reduce qualification time when approving a new initiator for a production line.
Because reaction temperature ranges differ between the bulk polymerization of styrene and the broader (co)polymerization applications, buyers should confirm which temperature window applies to their specific monomer system before finalizing a dosage and process schedule.
Buyers evaluating this initiator for the first time should also plan for a small-scale trial run under their own reactor conditions, since factors such as batch size, agitation, and heat transfer efficiency can all influence how closely actual reaction behavior matches published temperature ranges.
General Handling and Storage Guidance
As with most organic peroxide initiators, this product should be kept in its original, tightly sealed container, stored in a cool, dry location away from direct sunlight and heat sources, and used within the manufacturer’s recommended shelf life.
Shelf life and specific storage recommendations vary by batch and packaging format, so formulators should always confirm current shelf life, recommended storage conditions, and any handling precautions against the latest technical data sheet and SDS for the specific batch of Trigonox 22-E50 they are working with.
Common Questions About Batch Consistency
Formulators introducing a new initiator to an existing production line often want to understand how much process adjustment will be required. Because active oxygen content and assay are both supplied within a defined range rather than as a single fixed value, small variations between batches are expected and are typically accounted for in the process design rather than treated as an out-of-specification result.
Confirming the specific active oxygen and assay values on the certificate of analysis for each batch, rather than relying only on the general specification range, is a practical step formulators can take to catch any batch-to-batch variation before it affects production. This is especially relevant for processes running close to the edge of the recommended temperature window, where small compositional differences can have a more noticeable effect on reaction timing.
Where to Source This Product
Thousands Chemicals connects formulators with Trigonox 22-E50 and related organic peroxide products through our digital B2B marketplace. Initiator performance and decomposition behavior are commonly evaluated using test methods published by organizations such as 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 buyers evaluating this initiator for a new styrene, acrylonitrile, or (meth)acrylate polymerization process, our team can help arrange the current technical data sheet and safety data sheet. Having this documentation in hand before finalizing a formulation can help avoid delays later in your qualification or approval process.
FAQ
What is Trigonox 22-E50 used for?
It is an initiator, supplied as a 50 percent active ingredient in mineral oil, for the (co)polymerization of styrene, acrylonitrile, acrylates, and methacrylates.
What temperature range is used for the bulk polymerization of styrene?
Trigonox 22-E50 can be used for the bulk polymerization of styrene in the temperature range between 90 and 120°C.
What is the active oxygen content of Trigonox 22-E50?
The active oxygen content is 6.02-6.27 percent, with an assay of 49.0-51.0 percent.
Can you provide technical documentation and bulk pricing?
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 22-E50
Contact our team for a quote, technical data sheet, or SDS for this initiator. We support bulk supply and global shipping for formulators sourcing Trigonox 22-E50 for styrene, acrylonitrile, and (meth)acrylate polymerization processes.
