|
HS Code |
974374 |
| Cas Number | 105-89-5 |
| Molecular Formula | C13H26O5 |
| Molecular Weight | 262.34 |
| Appearance | Colorless to pale yellow liquid |
| Active Content | ≤77% |
| Diluent Type A Content | ≥23% |
| Boiling Point | Decomposes before boiling |
| Density 20c | 0.97 g/cm3 |
| Flash Point | 41°C (closed cup) |
| Solubility | Insoluble in water, soluble in organic solvents |
| Odor | Characteristic, mild ester odor |
| Stability | Thermally unstable, may decompose violently under heat |
| Storage Temperature | Store below 25°C (77°F) |
| Uses | Organic peroxide initiator for polymerization |
| Un Number | UN 3109 |
As an accredited Ethyl 3,3-Bis (Tert-Butylperoxy) Butyrate [Content ≤77%, Type A Diluent ≥23%] factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Ethyl 3,3-Bis(Tert-Butylperoxy) Butyrate is supplied in a 20 kg UN-approved HDPE drum with clear hazard labeling and tamper-evident seal. |
| Shipping | Ethyl 3,3-Bis(Tert-Butylperoxy) Butyrate [Content ≤77%, Type A Diluent ≥23%] must be shipped in compliance with hazardous chemical regulations. It requires tightly sealed containers, proper hazard labeling, and protection from heat or sunlight. Transport in well-ventilated vehicles, accompanied by shipping documents, and only by trained personnel, per relevant international and local guidelines. |
| Storage | Store **Ethyl 3,3-Bis (Tert-Butylperoxy) Butyrate [Content ≤77%, Type A Diluent ≥23%]** in a cool, well-ventilated, flammable-proof area, away from direct sunlight, heat sources, and incompatible materials (such as acids, bases, and reducing agents). Keep the container tightly closed. Use non-sparking tools and ground all equipment. Avoid contamination, shock, and friction to minimize potential for decomposition or explosion. |
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Initiator: Ethyl 3,3-Bis (Tert-Butylperoxy) Butyrate [Content ≤77%, Type A Diluent ≥23%] as an initiator is used in the polymerization of acrylic resins, where it enables precise control of molecular weight distribution. Crosslinking Agent: Ethyl 3,3-Bis (Tert-Butylperoxy) Butyrate [Content ≤77%, Type A Diluent ≥23%] as a crosslinking agent is used in thermoset plastics curing, where it ensures high crosslink density and improved heat resistance. Curing Temperature: Ethyl 3,3-Bis (Tert-Butylperoxy) Butyrate [Decomposition Temperature 140°C, Content ≤77%, Type A Diluent ≥23%] in sheet molding compounds is used for low-temperature curing, where it reduces energy consumption and speeds up production. Stability: Ethyl 3,3-Bis (Tert-Butylperoxy) Butyrate [Thermal Stability up to 45°C, Content ≤77%, Type A Diluent ≥23%] is used in storage-sensitive formulations, where it enhances safety and extends shelf life. Purity: Ethyl 3,3-Bis (Tert-Butylperoxy) Butyrate [Assay 77%, Type A Diluent ≥23%] is used in emulsion polymerization, where high purity results in products with fewer side reactions and higher clarity. Solubility: Ethyl 3,3-Bis (Tert-Butylperoxy) Butyrate [Content ≤77%, Type A Diluent ≥23%] is used in composite resin systems, where excellent solubility in organic matrices ensures homogeneous dispersion and uniform polymer properties. |
Competitive Ethyl 3,3-Bis (Tert-Butylperoxy) Butyrate [Content ≤77%, Type A Diluent ≥23%] prices that fit your budget—flexible terms and customized quotes for every order.
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At our manufacturing plant, the work never stops. Over the years, I have seen a wide spectrum of organic peroxides run through our reactors, feed lines, storage tanks, and blending kettles. Some have behaved with predictable steadiness, some with unpredictability that keeps process engineers awake at night. Ethyl 3,3-Bis (Tert-Butylperoxy) Butyrate, or ETBPB for short, stands out as a straightforward, reliable initiator that has built its reputation among hands-on polymer chemists, resin formulators, and technical staff in both small and large production facilities.
This chemical’s structure gives it an intermediate rate of decomposition—neither sluggish like some hydroperoxides, nor explosively fast as with the simplest dialkyl peroxides. Its decomposition profile lies in a comfortable middle ground. Many downstream applications, especially bulk thermoset resin production, benefit from this trait. In daily operations, process consistency cannot be overstated. A predictable, manageable thermal profile allows for smooth control of both batch and continuous reactors. ETBPB operates at decomposition temperatures tailored to commonly used thermoset resins, such as unsaturated polyester and vinyl ester systems.
The product we manufacture here comes with content at or below 77%, balanced with a minimum of 23% Type A diluent. Anyone who has worked with high-energy peroxides understands the value of a well-thought-out formulation. Too little diluent and the product feels sharp, unstable during storage, difficult to integrate into resin feeds, or downright hazardous to transport. Too much diluent, and reactivity in your application gets diluted along with it, driving costs up and overall efficiency down.
Our process control lab constantly monitors every drum and bulk shipment, confirming that both content and diluent ratios stay within specification. We use Type A diluent not out of convenience, but because its chemical compatibility ensures low volatility, a well-tempered flash point, and consistent performance in typical process environments. It is easy for anyone sitting at a desk to talk about percentages, but for shift operators who stack drums or push hoses, a stable peroxide-diluent blend means predictability, lower risk, and streamlined workflows.
This content-to-diluent ratio supports a practical balance: enough active ingredient to deliver efficient free radical generation when catalyzing polymerization, with just enough dilution to prevent runaway exotherms or unstable storage. That practicality directly impacts every step—from unloading and warehousing to blending and actual downstream usage.
The quest for higher activity leads some customers toward pure, concentrated organic peroxides, often trading off handling safety and stability in the process. Many dialkyl and peroxyester alternatives promise a faster kick, but with a higher risk profile. In production, accidents rarely happen by grand design—they build up from small uncertainties and inconsistencies. ETBPB’s moderate activity level simplifies plant training and minimizes upsets.
For people in the trenches, fast-reacting initiators often bring more trouble than benefit. Unanticipated chain reactions may char, foam, or under-cure finished goods. A product like ETBPB matches predictable latent activity to daily process needs, giving operators a clear window for workable pot life and manageable curing times. Its molecular design means fewer headaches from unwanted side reactions, and fewer lost batches due to incomplete cure. Too many nights, I have heard from floor supervisors about other peroxides—“It ran hot and ruined the lot.” With ETBPB, conversations tend to focus on productivity, not emergency response.
For many operators, the true value of ETBPB lies in how it integrates with unsaturated polyester resins, often used in fiberglass-reinforced plastics and molded parts. The triggers for cure can make or break a lot’s structural integrity. Our team works closely with technical support at customer sites, scaling from pilot vessels to commercial reactors, fine-tuning addition rates, monitoring resin temperature, and chasing down what causes small defects—whether it is residual inhibitor, resin blend inconsistency, or raw material contamination.
Every manufacturer with skin in the game wants a peroxide that is as hands-off as possible. The blend of ETBPB that we prepare stays stable across the range of realistic ambient temperatures faced in real warehouses. With proper storage—cool, shaded, capped—decomposition proceeds as predicted, and there’s none of the surprising viscosity jumps or odorous off-gassing that lower quality products tend to produce.
Feedback from our longtime partners centers on one fundamental: confidence. Knowing that each delivery matches the last, that the reactivity window stays within the same curve, that no unplanned foaming ruins a mold, or that the resin depth cures evenly—these are simple things that seasoned plant engineers care about.
Every big-user plant will need to think about insurance, storage compliance, segregation protocols, and incident response plans for peroxides. Some peroxides stack the deck against safe, low-fuss operation. Narrow stability margins, peculiar temperature sensitivities, and hazardous post-cure residues turn routine handling into a regulatory headache. ETBPB’s tested composition and inclusion of Type A diluent offers one of the easier solutions for balancing transport safety and storage costs.
Our logistics staff track ambient warehouse temperatures across different seasons, matching drums and IBC totes to customer planning cycles. All product moves in UN-approved packaging, the same way we protect our people at the loading dock. The robust stability of our ETBPB blend means fewer rejected drums, fewer insurance claims, and more sustainable, repeatable logistics for large-scale operations.
Site management never hangs on theory alone. Cold-weather arrival, hot shipping lanes, or unexpected warehousing slow-downs can throw a wrench in the works with less stable materials. We have refined both our composition and our packaging protocols to buffer against those process disruptions, giving receiving staff the breathing room they need to juggle the realities of modern supply chain management.
Chemicals like ETBPB do not operate in a vacuum. Every plant’s substance inventory faces regulatory review, whether for REACH, US TSCA, or local environmental registration. There’s strong pressure to demonstrate stability, low environmental volatility, reliable documentation, and globally recognized hazard communication. Type A diluent brings transparency to SDS classification and labeling, with fewer surprises during audits, and clear-cut waste handling practices.
Our experience tells us that half the trouble in regulatory audits comes from out-of-spec or mismatched drums. Years of quality assurance work confirm that a stable blend—carefully monitored for content and dilution—cuts red tape almost as much as it smooths split-shift production. Legal compliance isn’t just paperwork for us; it feeds back into safer workplaces and stronger long-term partnerships with global customers.
Some might see lab tests—active oxygen content, impurity trace, dilution uniformity—as just another day in the routine. I see them as the front line for protecting both our crews and our customer’s products. When our batches leave the gate, each comes with a certificate generated by someone who walked the plant and saw those drums. No spreadsheet or AI algorithm duplicates the instincts of a chemist who has watched how storage temperature drifts impact peroxide stability over months.
Rejecting a batch always hurts, but letting an unstable product out the door hurts more. We keep detailed run logs—ambient temperature, batch reactivity, storage history—because years of experience prove that process drift creeps in unless you catch it early. Our job doesn’t end at clean paperwork. It ends when a line supervisor at a customer plant calls in satisfied that a curing profile matches last month’s run, or when a molding operator reports zero foam-outs, zero unexpected gels.
There are no magic bullets in process chemistry. Years on the line teach everyone that trends in regulatory limits, operator safety, and sustainability are only getting stricter. Peroxides often sit at the cross-section of performance and regulation. Ethyl 3,3-Bis (Tert-Butylperoxy) Butyrate, with its measured reactivity, solid safety profile thanks to Type A diluent, and stable shelf behavior, finds itself in a unique position for those balancing long-term productivity and compliance.
Trust grows slowly. Many of our customers started with small lab-scale pulls before scaling up to tanker loads. They ask tough questions about freeze-thaw stability, cross-reactivity, residual decomposition profiles, and solvent compatibility. Our technical teams walk the floor in both directions: from customer’s shoulders at their reactors back to formulation chemists at our plant. Every tweak—content shifts, different diluent feedstocks, alternative packaging—goes through this cycle, informed by the real-world production tempo.
I remember the first time our team responded to a customer’s request to tighten the lower activity band. Small feedback loops like those improve everyone’s workflow. The introduction of the Type A diluent responded to hands-on blending outcomes: easier pumping, less viscosity drift, and improved safety scores in batch records. This change wasn’t driven by boardroom decisions; it came from operators on the floor reporting what actually worked.
Faced with ever-tightening industry guidelines on storage and downstream waste disposal, our approach keeps evolving. Batch records now flag not just peroxide content, but also track stability across varying storage temperatures. Senior process engineers led the shift toward real-time reactivity monitoring during blending, giving us a clearer forecast of how each drum will react in the customer’s actual processing line, not just in a controlled lab setting.
Sustainability is more than just buzzwords to those of us who see the legacy of every chemical drum we ship. We’ve taken steps—small but cumulative—to cut down on both packaging and energy in ETBPB manufacturing. Drums are right-sized for end-users, not bulked solely for warehouse optimization. Continuous blending lines offer less heat load and more process efficiency than older batch reactors.
Since Type A diluent lowers volatility, we see less product loss to the atmosphere during filling and storage. It is a small shift, but multiply it by thousands of drums across a decade, and the environmental savings become significant. Any change, from dedicated containment areas to in-line leak detection, has roots in practical, hands-dirty experience, not theory. When customer audits show reduced waste handling and easier recycling, we know these steps matter.
Anyone with time on the factory floor knows the reputation of a chemical has little to do with marketing gloss. ETBPB’s repute comes built on cycle after cycle of steady performance. Plant engineers, maintenance staff, and shift leads have built their opinion from seeing fewer plant stoppages, steadier process heat curves, and more predictable downstream yield.
We track product complaints as closely as quality metrics. Every time ETBPB leaves a customer warehouse in the same condition it arrived, or when a plant manager reports a long stretch with no lost batches, confidence in this product line cements a little more.
Competitors often tout higher reactivity or lower material costs, but those savings disappear fast if batches spoil, safety measures fail, or insurance premiums climb. ETBPB’s value lies not in theoretical maximums, but in on-the-ground reliability, safety, and true cost efficiency for industrial operators. Our team has learned never to discount real-world experience over spreadsheets when recommending or refining product grades.
Our story with Ethyl 3,3-Bis (Tert-Butylperoxy) Butyrate continues to evolve. As market requirements tighten on hazardous materials, and as customer demand grows for resilient, steady-performing initiators, our team stays ready to listen and adapt. From the high-volume resin plants to specialty composite manufacturers, the need remains the same: stable, safe, and reproducible performance each time drums roll onto the receiving dock.
We look forward to continuing work with partners—customers, handlers, regulators, and plant crews alike—to keep making each iteration of ETBPB the steady-handed performer it is known to be in the world of industrial peroxides. Real innovation, in our experience, grows out of practical solutions to field-reported problems. That is how we keep learning, improving, and building chemicals that work just as hard as the people who use them.