Overview
Trigonox A-W70 is a tert-butyl hydroperoxide (TBHP) supplied as a 70% solution in water, used as a radical initiator and oxidizing agent across polymer, thermoset composite, and specialty chemical manufacturing. Buyers sourcing this product typically need a reliable initiator for (co)polymerization of styrene, butadiene, acrylonitrile, and (meth)acrylates, or a curing agent for vinylester resin systems. Because it functions as a high-purity reagent, formulators in pharmaceutical and fine chemicals synthesis, as well as oilfield service companies using it as a viscosity breaker for fracturing fluids, also rely on consistent supply.
Specifications
| Active oxygen | 12.25-12.61 % |
| Appearance | Clear colorless liquid |
| Assay | 69.0-71.0 % |
| Color | 20 Pt-Co / APHA max |
Characteristics
| Density, 25°C | 0.935 g/cm³ |
| Viscosity, 20°C | 4.1 mPa.s |
Applications of Trigonox A-W70 Across Market Segments
Trigonox A-W70 (tert-butyl hydroperoxide, 70% solution in water) is used across five market segments: polymer production, thermoset composites, acrylics, pharma, and oilfield. In polymer production, it initiates (co)polymerization of styrene, butadiene, acrylonitrile, and (meth)acrylates. In thermoset composites, it functions as a curing agent for vinylester resin systems used in FRP pipe, tank, and marine laminates. In pharma and fine chemicals synthesis, this grade serves as a high-purity oxidizing reagent, while in oilfield applications it is used as a viscosity breaker for fracturing fluids.
Why the Water-Based Carrier Matters
Unlike solvent-carried organic peroxides, Trigonox A-W70 is supplied as an aqueous solution, which simplifies handling and storage logistics for buyers who need to avoid flammable-solvent classification on part of their inventory. The clear colorless liquid appearance and tight assay range (69.0-71.0%) make it straightforward for quality teams to verify incoming material against specification on receipt.
Why Sourcing Consistency Matters for Buyers
Initiator and oxidizer performance in polymerization, resin curing, and oilfield fluid treatment depends on consistent active oxygen content and assay from batch to batch. When active oxygen or assay drifts outside the specified range, downstream processors can see inconsistent cure profiles, incomplete polymerization, or unpredictable viscosity-breaking results. Buyers of Trigonox A-W70 for thermoset composite or polymer production lines typically request certificates of analysis confirming active oxygen, assay, and color specifications before each shipment is released.
For oilfield service companies and pharmaceutical synthesis buyers, supply chain continuity is equally important, since production schedules for fracturing operations or fine chemical batches are often planned around confirmed delivery windows. Working with a supplier that can provide documentation and consistent lot-to-lot quality helps reduce the risk of production delays tied to organic peroxide availability.
What to Consider When Sourcing Trigonox A-W70
Buyers evaluating Trigonox A-W70 for a new application should confirm that the intended use case aligns with the product’s active oxygen and assay range, and request the safety data sheet to plan for the correct storage, transport, and handling procedures required for organic peroxides. Since it is classified as an oxidizer, compatibility with other raw materials in a formulation should also be checked before large-scale adoption.
For thermoset composite manufacturers switching from a solvent-based initiator to a water-based system, it is worth requesting technical guidance on dosage and cure behavior, since gel time and peak exotherm can differ from other tert-butyl hydroperoxide grades. Sourcing managers should also confirm packaging options and minimum order quantities that match their production volume.
General Handling and Storage Guidance
As with other organic peroxide products, Trigonox A-W70 should be stored in a cool, well-ventilated area away from direct sunlight, incompatible materials, and sources of contamination. Containers should remain tightly closed when not in use, and any spilled material should be handled according to the safety data sheet to avoid decomposition risks associated with concentrated oxidizers.
Personnel handling this product should use appropriate personal protective equipment and follow site-specific procedures for organic peroxide storage segregation. Buyers new to handling tert-butyl hydroperoxide solutions are encouraged to review the full safety data sheet and consult applicable transport regulations before shipment.
Where to Source This Product
Chemicalsstore.com supplies Trigonox A-W70 and other organic peroxide products for polymer, composite, pharma, and oilfield applications, with supply chain resource support for recommended international brand products. Product handling and classification should follow applicable ASTM and regulatory guidance for organic peroxides.
Documentation We Can Provide
Upon request, we can provide the safety data sheet (SDS), certificate of analysis (COA), and available technical data for Trigonox A-W70 to support your procurement and quality review process.
FAQ
What is Trigonox A-W70 used for?
Trigonox A-W70 is a tert-butyl hydroperoxide, 70% solution in water, used as an initiator for polymer production, a curing agent for vinylester resin in thermoset composites, a high-purity reagent in pharma and fine chemicals synthesis, and a viscosity breaker in oilfield fracturing fluids.
What is the active oxygen content of Trigonox A-W70?
It has an active oxygen content of 12.25-12.61%, with an assay of 69.0-71.0%.
Is Trigonox A-W70 solvent-based or water-based?
It is supplied as a 70% aqueous (water-based) solution, appearing as a clear colorless liquid.
Can Trigonox A-W70 be used for vinylester resin curing?
Yes, it can function as a curing agent for vinylester resin systems used in thermoset composite manufacturing.
Get a Quote for Trigonox A-W70
Contact our team for pricing, available documentation, and supply chain resource support for Trigonox A-W70 to fit your polymer, composite, pharma, or oilfield application requirements.
