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HS Code |
542837 |
| Chemical Name | Tert-Butyl Peroxy-2-Methylbenzoate |
| Synonyms | t-Butyl peroxy-o-toluate |
| Cas Number | 4674-50-4 |
| Molecular Formula | C12H16O3 |
| Molecular Weight | 208.25 g/mol |
| Appearance | Colorless to pale yellow liquid |
| Purity | ≤100% |
| Boiling Point | No data (decomposes before boiling) |
| Flash Point | 88°C (closed cup) |
| Density | 1.05 g/cm³ at 25°C |
| Solubility | Insoluble in water; soluble in organic solvents |
| Odor | Characteristic |
| Storage Temperature | 2-8°C (refrigerated) |
| Stability | Unstable, decomposes when heated |
| Hazard Class | Organic Peroxide (Class 5.2) |
As an accredited Tert-Butyl Peroxy-2-Methylbenzoate [Content ≤100%] factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Supplied in a 1-liter amber glass bottle, tightly sealed, with UN hazard labels and detailed safety instructions for Tert-Butyl Peroxy-2-Methylbenzoate. |
| Shipping | Tert-Butyl Peroxy-2-Methylbenzoate [Content ≤100%] must be shipped as a hazardous material, typically under UN 3109, Organic Peroxide Type F, Liquid. It should be packed in approved containers, kept away from heat and direct sunlight, and handled per applicable regulations. Ensure ventilation, temperature control, and proper labeling during transport. |
| Storage | Tert-Butyl Peroxy-2-Methylbenzoate [Content ≤100%] should be stored in a cool, dry, and well-ventilated area away from heat, sparks, open flames, and direct sunlight. Keep the container tightly closed and away from incompatible materials such as acids, bases, and reducing agents. Use original, approved containers and avoid contamination. Store at recommended temperatures, following manufacturer and local regulatory guidelines. |
Applications of Tert-Butyl Peroxy-2-Methylbenzoate [Content ≤100%] in Industrial ManufacturingTert-Butyl Peroxy-2-Methylbenzoate is a specialty organic peroxide widely used in the polymer and elastomer industries as a high-efficiency initiator and crosslinking agent. As a direct manufacturer with established upstream integration, we supply this ingredient to leading production lines requiring stringent quality control and traceability. Our experienced technical team supports industrial clients globally by aligning supply with sector-specific technical and regulatory requirements. 1. Crosslinking Agent in Wire & Cable Polyethylene CompoundsWire and cable compound manufacturers rely on Tert-Butyl Peroxy-2-Methylbenzoate to initiate crosslinking in low-density and linear low-density polyethylene (LDPE, LLDPE) during the production of XLPE (crosslinked polyethylene) insulation. Our customers use it in high-temperature and high-pressure extrusion processes to deliver the mechanical and dielectric properties essential to insulation and sheathing for power and telecommunication cables. We provide technical guidance for exact dosing to ensure safety and material performance, supporting efficient line speeds and eliminating post-curing defects. Industry compliance standards
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2. Initiator for Unsaturated Polyester Resin (UPR) CuringProducers of unsaturated polyester resin (UPR) composites use our product as a curing initiator. It allows rapid, controlled polymerization in both bulk and pre-impregnated systems. The high decomposition temperature offers a processing window compatible with rapid mold cycles, specifically for automotive panels, industrial covers, and large construction components. This grade provides consistent free radical release, which enables full cure even in thick laminates and reduces post-cure emissions for downstream users. Industry compliance standards
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3. Vulcanization Agent for Ethylene-Propylene Elastomers (EPDM)Manufacturers of technical rubber goods utilize this organic peroxide as a vulcanizing agent for EPDM and similar elastomeric systems. It provides thermal stability at high processing temperatures and enables efficient crosslinking throughout both injection and compression molding. When incorporated into compound formulations, the ingredient supports high throughput and stable dimension tolerances in final rubber components, even under variable curing conditions. Industry compliance standards
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4. Thermoset Polymerization for Acrylic Sheet ManufacturingAcrylic sheet manufacturers use this peroxide in the thermal bulk polymerization of methyl methacrylate (MMA) to form cast acrylic sheets. The high efficiency and reproducible decomposition rate allow controlled molecular weight buildup, ensuring excellent light transmission and mechanical rigidity in end sheets. Production teams benefit from reduced residual monomer and improved flatness, critical for architectural glazing, signage, and optical grade applications. Industry compliance standards
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At our manufacturing facility, Tert-Butyl Peroxy-2-Methylbenzoate stands as a product developed through years of commitment to precise chemical synthesis and rigorous process control. Chemists on the production line monitor every batch, focusing on purity, stability, and safety from raw material sourcing to isolation and packaging. The chemical, frequently known by its CAS number 614-45-9, fills an important need for initiators in polymerization processes. With content up to 100%, we deliver a high-purity grade tailored to industrial users who do not want unpredictable impurities affecting their final products or processing consistency.
Tert-Butyl Peroxy-2-Methylbenzoate belongs to the organic peroxide family, mainly used as a radical initiator for processes like polymerization of unsaturated polyester resins and acrylic resins. Technicians find its performance reliable because the decomposition temperature sits in a practical range for many standard curing schedules. By choosing a perester such as this, you cut down on curing time in resin manufacture without sacrificing control. The result is tighter process windows and higher reproducibility, factors that plant managers and operational staff appreciate during large batch runs.
Practical experience in our labs shows that other grades of organic peroxides may introduce more water or phthalate contaminants unless monitored stringently. We have refined crystal and liquid purification steps so users spend fewer hours troubleshooting gel times and end-use quality. Testing and monitoring continue from charge-in to finished drums, not just batch by batch, but within a batch, bolstered by staff experience with both traditional and automated control systems.
The chemical landscape for radical initiators features dozens of organic peroxides, but few offer the same combination of reactivity and storage stability as Tert-Butyl Peroxy-2-Methylbenzoate. Many clients ask us how it stacks against standard methyl ethyl ketone peroxide (MEKP) or benzoyl peroxide. MEKP finds use in low-temperature applications but presents handling hazards due to its volatility and sensitivity to contamination. Benzoyl peroxide, while common, carries limitations on shelf life and presents challenges with dust and phlegmatization.
By contrast, Tert-Butyl Peroxy-2-Methylbenzoate maintains safe handling characteristics when stored according to protocol. Its breakdown creates predictable releases of radicals, supporting projects that need consistency from small-volume pilot runs up to major resin production lines manufacturing for construction or automotive uses. The decomposition products are better understood and cataloged in real-world manufacturing, avoiding unpredictable downstream reactions that have tripped up less-experienced operations.
Plant engineers who have grappled with inconsistent cure profiles in sheet molding compound lines often switch to a higher-purity perester for better batch-to-batch quality. They point to the difference in viscosity curves and surface finish after cure. Even for non-polymer applications, such as specialty oxidation reactions or cross-linking phases, the control and purity characteristics keep downtime low and scrap rates in check.
Our history with peresters such as Tert-Butyl Peroxy-2-Methylbenzoate stretches back before modern instrument controls. Operators learned to avoid bottlenecks by closely monitoring agitation speeds and jacket temperatures, since localized overheating will degrade peresters and halve their performance. Today, we combine hands-on know-how with automated systems directing temperature ramps and holding times, reflecting decades of continuous improvement.
This blend of experience informs our approach to safety. Every person on the floor trains on proper PPE, but design choices in our plant play a big part. For instance, pressure relief construction built for peroxide processing, double-containment bulk lines, and remote shutdown protocols help prevent incidents. Staff rotate through regular drills, working directly with chemical engineering staff to ensure that safety protocols reflect the unique characteristics of each peroxide handled.
Everything from pump selection to storage tank materials reflects close attention to organic peroxide chemistry. On the transport side, we ship in drums with pressure-rated seals and insulation, not just relying on paperwork, but on the visible, hands-on stage checks of each outbound load. These are not afterthoughts; they serve as guarantees for customers, based on the realities witnessed by every operator who has worked a summer or winter shift in chemical logistics.
No organic peroxide supplier can compete on promises alone. We back up our product with data. GC-MS and HPLC profiles for each batch go beyond regulatory minimums. Seasoned analysts review these reports, not just for content percentage but for trace byproducts that might affect polymer properties or introduce shelf-life unpredictability. Working with outside labs in regulatory audits, we constantly reassess analytical methods as new standards develop.
Maintaining content up to 100% has practical impact for our customers. Downstream processors calibrate initiator dosing tighter, using the smallest volume needed for complete reaction. That saves money and time, and reduces side reaction products, making waste management less complex at the facility. Lower impurity loads mean less risk of unplanned shutdowns or hot spots, both of which can drive up costs and risk for anyone making anything from boat hulls to automotive body panels.
On our side, detailed records for every step let plant personnel track any deviations. If a filter change or solvent supplier tweak crops up, we catch it in seconds, not weeks. This goes well beyond standard compliance; it grows out of decades of seeing small details turn into big issues when left unchecked.
Manufacturers want initiators that run reliably under a range of cure cycles and resin chemistries. Tert-Butyl Peroxy-2-Methylbenzoate fits the schedules that resin manufacturers use in rotomolding or pultrusion operations. Teams on color lineups, for instance, have found higher-purity peresters reduce unpredictable streaking and blemishing. It’s not just about mixability or solubility—real experience shows that working with a consistent initiator means less downtime due to off-ratio mixing or incomplete polymerization.
Some customers have migrated away from blends or diluted versions used by third-party formulators. Control over batching and purity at the source leaves less margin for error downstream. This is especially important for sectors building composite bridges, pipelines, or specialty fiber-reinforced panels, where performance failures can bring licensing or liability headaches. Practical know-how from working with these industries translates into continuous product feedback loops and improvements back at the manufacturing plant, affecting everything from order fulfillment to drum labeling and documentation turnaround.
Manufacturing and supplying organic peroxides comes with clear responsibilities to regulatory bodies and the environment. Environmental managers onsite work hand-in-hand with process chemists to reduce unintentional emissions, keep waste streams in closed loops, and recover solvents where possible. Local and international legislation shapes how every lot of Tert-Butyl Peroxy-2-Methylbenzoate moves from synthesis to shipment. Continuous training keeps teams updated on regulatory changes, from hazard labeling to permitted quantities in transit.
During audits, attention goes to inventory turnover and shelf lives, but there’s also focus on emergency protocols and secondary containment. Over the years, adopting closed transfer systems for bulk filling and offloading has significantly reduced incidents and loss, a change stemming from day-to-day feedback from operators, not just top-down mandates. Environmental impact remains limited through strict adherence to best practices, from effluent neutralization and filtration to system maintenance schedules designed to catch early signs of wear or leaks.
Supplying peresters to global markets takes more than just filling transport drums. Logistics managers at our company work with reliable shipping lines and storage partners, ensuring every batch arrives at customer sites within the time frames needed for smooth manufacturing flows. Stockout prevention and redundancy mean keeping buffer stock in approved warehouses, tracking temperature records, and planning shipments based on customer forecasts gathered through long-term partnerships, not just spot market surveys.
When supply interruptions have occurred, we have relied on proactive customer support and clear communication. This transparency keeps users of Tert-Butyl Peroxy-2-Methylbenzoate informed, able to adjust their own production schedules with minimal disruption. Operational flexibility, built around honest discussion with users, has guided everything from emergency order turnaround to joint troubleshooting calls between our chemists and theirs.
Our role as a manufacturer extends beyond shipping product; technical service teams engage with users directly. Access to skilled chemists on our side speeds up root cause analysis when customers report unexpected results. Whether the issue relates to viscosity control, cure rates, or color development, people with hands-on factory experience draw on data and anecdotal field reports to guide resolution, sharing advice developed over decades working with organic peroxides.
Training programs open to customers’ plant staff bridge knowledge gaps between lab-scale trials and full-scale production. Interactive workshops—sometimes held in customer factories, sometimes online—highlight best practices for safe storage, handling, and batch preparation. These efforts spring from our practical understanding that user error often leads to the same challenges as impurity issues, especially with products as reactive as peresters.
Product development runs in cycles informed by ongoing feedback from users in the field. As equipment changes and processes evolve—from small-batch resin casting to high-speed continuous sheet lines—our production and support teams adapt, refining process control steps and updating documentation to reflect real-world best practices. Incremental improvements often start as minor tweaks suggested after direct observation on customer lines, rather than official R&D projects.
On the shop floor, process operators keep their eyes on material behavior during mixing and transfer. Data integrated from in-line sensors, pressure relief valves, and temperature loggers provide the evidence foundation for every tweak. It’s not uncommon for practical troubleshooting, built up through years of daily handling, to drive a lasting change in our product’s manufacturing protocol, which benefits every user down the line—no matter how complex their production requirements become.
Anyone handling organic peroxides, especially at concentrations up to 100%, understands the critical importance of safety policies and reliable plant equipment. Years of direct experience have taught us the leaps forward gained by investing in better storage conditions and dedicated peroxide handling areas. Each improvement springs from lessons learned—sometimes the hard way—from small incidents investigated and followed up with systemic improvements.
Safety data sheets accompany every shipment, and technical consultants are available to discuss safe handling with users’ EH&S teams. While every plant meets a particular set of requirements, most find reassurance in partnering with a manufacturer who backs advice with long-term operating experience, not just compliance language. The network of safety professionals who have passed through our facility often moves into industry associations, spreading best practices developed on our shop floor into broader standards.
As the global chemical industry shifts toward more sustainable materials and processes, we continue to evaluate renewable feedstock options and green chemistry principles for future iterations of products like Tert-Butyl Peroxy-2-Methylbenzoate. Pilot trials and joint development work with strategic customers push us to challenge old assumptions, lean on process know-how, and maintain the level of risk management learned from years of hands-on manufacture. Feedback from forward-thinking customers influences how we approach process changes, documentation updates, or even new equipment investments.
The intersection of tradition and innovation often emerges where customers demand better environmental profiles and stricter supply chain oversight. Leaders in industries from aerospace to renewable energy communicate not only what works today, but where supply practices and product profiles must go in the future. In response, we refine process steps, expand quality control, and support system integration projects designed to mirror customer expectations for the next generation of manufacturing.
From raw material sourcing through to technical support, the knowledge that shapes each shipment of Tert-Butyl Peroxy-2-Methylbenzoate comes directly from years of chemical manufacturing. Specific choices in process controls, purity monitoring, shipping protocols, and safety systems reflect not only the requirements of regulation, but lessons learned through hands-on daily practice. While no two production campaigns unfold identically, the core principles of safety, transparency, and partnership guide every step.
Choosing this perester over other organic peroxides offers direct, tangible benefits to downstream users. Teams working on polymerization, composites, or specialty fine chemicals experience greater consistency and less troubleshooting, relying less on after-the-fact adjustments and more on predictable results rooted in hard-won production experience. Through regular conversation, ongoing process support, and investment in continuous improvement, we aim to help every user achieve excellent outcomes—whether scaling up a new process or optimizing current runs. The knowledge driving our chemical manufacturing finds its form in each drum shipped, backed by thousands of hours on the line and in the lab.