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Di-Sec-Butyl Peroxydicarbonate [Content ≤ 52%, Type B Diluent ≥ 48%]

    • Product Name Di-Sec-Butyl Peroxydicarbonate [Content ≤ 52%, Type B Diluent ≥ 48%]
    • Alias LP-SEC-B-52
    • Einecs 416-570-0
    • Mininmum Order 1 g
    • Factory Site Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing
    • Price Inquiry admin@sinochem-nanjing.com
    • Manufacturer Sinochem Nanjing Corporation
    • CONTACT NOW
    VTB
    Specifications

    HS Code

    287065

    Productname Di-Sec-Butyl Peroxydicarbonate [Content ≤ 52%, Type B Diluent ≥ 48%]
    Casnumber 533-36-6
    Molecularformula C10H18O6
    Molecularweight 234.25 g/mol
    Physicalstate Liquid (when diluted with Type B Diluent)
    Color Colorless to pale yellow
    Odor Faint, pleasant
    Density Approximately 1.02 g/cm³ (at 20°C)
    Solubility Insoluble in water; soluble in organic solvents
    Meltingpoint -10°C to -20°C
    Decompositiontemperature Above 35°C
    Storagetemperature Below 0°C
    Mainuse Polymerization initiator
    Stability Sensitive to heat and contamination
    Flashpoint None (decomposes before ignition)

    As an accredited Di-Sec-Butyl Peroxydicarbonate [Content ≤ 52%, Type B Diluent ≥ 48%] factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing 500g amber glass bottle, tightly sealed with a Teflon-lined cap; clear hazard labeling and chemical identification on durable, chemical-resistant exterior.
    Shipping Shipping of Di-Sec-Butyl Peroxydicarbonate [Content ≤ 52%, Type B Diluent ≥ 48%] must comply with UN 3104 regulations. It should be transported in approved, leak-proof containers, protected from heat, impact, and direct sunlight. Only trained personnel may handle shipping, ensuring temperature control and segregation from incompatible substances to prevent hazardous decomposition.
    Storage Di-Sec-Butyl Peroxydicarbonate (≤ 52%, Type B Diluent ≥ 48%) should be stored in a cool, well-ventilated, explosion-proof location away from heat, sparks, open flames, and direct sunlight. Use corrosion-resistant containers tightly sealed, and segregate from incompatible substances such as acids, bases, and reducing agents. Maintain temperatures as recommended by the manufacturer, and ensure proper labeling and access to safety equipment.
    Application of Di-Sec-Butyl Peroxydicarbonate [Content ≤ 52%, Type B Diluent ≥ 48%]

    Applications of Di-Sec-Butyl Peroxydicarbonate [Content ≤ 52%, Type B Diluent ≥ 48%] in Industrial Manufacturing

    Di-Sec-Butyl Peroxydicarbonate functions as a key free-radical initiator in several sectors involving polymer processing and specialty material synthesis. As an experienced raw material manufacturer, we serve industries with critical requirements on process control, purity, and compliance frameworks, applying this initiator within tightly regulated operational environments. Below, we detail several downstream fields that integrate this compound for consistent, scale-up performance and final product stability.

    1. Suspension Polymerization of Polyvinyl Chloride (PVC)

    Major PVC resin plants select this peroxydicarbonate as an initiator for suspension polymerization. It helps control molecular weight distribution during low-temperature polymerization, enabling consistent resin properties for downstream compounding and extrusion. Dosage and addition timing undergo precise calibration based on monomer type, target polymerization temperature, and required resin K-value, maintaining batch-to-batch reproducibility.

    Industry compliance standards

    • ISO 9001:2015 Quality Management for chemical manufacturing
    • GB/T 8806 Polyvinyl Chloride specifications (China)
    • REACH regulation (EC) No 1907/2006 for substance registration
    • FDA 21 CFR 177.1980 (if end-use includes food-contact PVC)

    Typical usage ratio

    • 0.05–0.12 phr (parts per hundred resin); plant engineers may adjust within range to balance polymerization rate and resin porosity, usually optimizing for mid-range bulk density and flowability.

    Downstream process integration

    • Raw material is metered into the charge vessel with vinyl chloride monomer and suspending agents before temperature ramping. Real-time dosing is synchronized with agitator speed and exotherm profile, guaranteeing precise initiation onset.

    Final product types

    • General-purpose PVC resin (homopolymer and copolymer grades)
    • High molecular weight PVC for pipes, sheets, and fittings
    • Paste PVC for wall coverings and synthetic leathers
    • PVC compounds for wire and cable insulation

    2. Bulk Polymerization of Acrylic Resins

    In bulk or solution processes for acrylics (notably polymethyl methacrylate, PMMA), this initiator supports low-temperature, uniform initiation, minimizing side reactions and residual monomers. Manufacturers carefully stage the addition in multi-zone reactors to determine chain length, optical clarity, and surface finish of the final resin, supporting requirements for optical and coating grades.

    Industry compliance standards

    • EN ISO 7823-1 for cast PMMA sheets (Europe)
    • JIS K 6732 (Japan) for acrylic molding materials
    • ASTM D788 (USA) for acrylic sheet materials
    • RoHS Directive 2011/65/EU (electronic and coating grades)

    Typical usage ratio

    • 0.04–0.10 wt% relative to total monomers; process engineers modify within this span based on clarity requirements and required thermomechanical properties of the cast or molded part.

    Downstream process integration

    • Initiator is blended with freshly purified methyl methacrylate stock, then introduced at controlled intervals during the bulk/solution polymerization. Closed-loop controls monitor temperature, avoiding hot spots that induce haze or yellowing.

    Final product types

    • Optical-grade PMMA sheets and rods
    • Molded acrylic parts for automotive and electronics
    • Extruded acrylic bars and panels
    • Acrylic coatings and adhesives base resin

    3. Copolymer Production for Emulsion Polymers

    Producers of specialty emulsion polymers use this peroxydicarbonate as a room-temperature or low-temperature initiator, targeting latexes for advanced applications. Efficient initiation at controlled dosage results in narrow particle size distributions suited for high-performance paints, adhesives, and nonwoven binders, particularly where color stability and mechanical strength must be guaranteed throughout field application.

    Industry compliance standards

    • ASTM D2566 for acrylic emulsion polymers
    • GB/T 17514-2015 for styrene-acrylate emulsions
    • ISO 14001:2015 Environment Management (waste minimization in batch processing)
    • GHS labelling requirements for chemical handling

    Typical usage ratio

    • 0.03–0.08 wt% of total monomer; plant chemists adjust for seasonal ambient conditions and monomer reactivity ratios, balancing initiation rate and final latex particle profile.

    Downstream process integration

    • Emulsifier and monomer pre-emulsions receive initiator charge at a staged point calculated to minimize free monomer residue. Automated feeding systems ensure fast, safe dosing, especially during scale-up or consecutive batch runs.

    Final product types

    • Binder latex for architectural coatings
    • Pressure-sensitive adhesive emulsions
    • Textile and paper binder resins
    • Nonwoven and filter media binders

    4. Thermoset Resin Curing Systems for Unsaturated Polyesters

    Composite manufacturers employ this material as a controlled-activity initiator in curing systems for unsaturated polyester resin (UPR) and vinyl ester compositions. The precisely defined half-life and low decomposition temperature make it suitable for bulk and molded part production, especially in applications demanding consistent curing profiles, surface finish, and dimensional stability.

    Industry compliance standards

    • EN 13906 for composite laminates and molded parts
    • UL 94 flammability for electrical insulation parts
    • ISO 9001 for QA in composite part manufacturing
    • OSHA 29 CFR 1910.1450 for chemical safety in US composites plants

    Typical usage ratio

    • 0.08–0.15 phr relative to resin; usage depends on formulation viscosity, filler content, cure schedule, and desired gel time for batch or continuous pultrusion lines.

    Downstream process integration

    • Chemical is pre-mixed into base resin together with accelerators and controlled inhibitors, directly before the resin enters the mold or pultrusion die, ensuring uniform curing throughout component cross-section.

    Final product types

    • Fiberglass-reinforced profiles
    • Pultruded rods and beams for construction
    • Composite electrical components and enclosures
    • Marine and automotive composite structures

    5. Microcapsule and Controlled Release Applications

    Chemical and pharmaceutical intermediate suppliers rely on this initiator for free radical polymerization in microencapsulation processes. Low-temperature activity supports stable shell formation without compromising the characteristics of heat-sensitive core actives, benefiting agrochemical, cosmetic, and pharmaceutical delivery systems where payload integrity is crucial.

    Industry compliance standards

    • ICH Q7 GMP guidelines for active ingredient suppliers
    • ISO 9001 and ISO 22716 for cosmetic ingredient production
    • OECD Guidelines for the Testing of Chemicals (agrochemical sector)
    • EU Regulation (EC) No 1223/2009 for cosmetics

    Typical usage ratio

    • 0.02–0.06 wt% on encapsulating monomer blend, adjusted for required release performance, wall thickness, and payload sensitivity to free radical activity.

    Downstream process integration

    • Initiator is dosed during the early phase of in-situ polymerization, just after the core material is added to the suspension or emulsion system. Advanced control ensures narrow shell distribution and minimal free initiator residue in final capsules.

    Final product types

    • Controlled release agrochemicals (herbicide and pesticide capsules)
    • Encapsulated cosmetic actives (fragrances, vitamins)
    • Slow-release veterinary and pharmaceutical microspheres
    • Functional food additives with protected actives
    Free Quote

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    Certification & Compliance
    More Introduction

    Introducing Di-Sec-Butyl Peroxydicarbonate [Content ≤ 52%, Type B Diluent ≥ 48%]

    A Closer Look from the Manufacturer’s Floor

    Every time we walk through the plant, these tall reactors speak to decades of evolution in organic peroxide technology. Among the products we’ve developed, Di-Sec-Butyl Peroxydicarbonate with its specific dilution and stabilization stands out for a reason—it keeps pace with what polymer chemists demand while respecting our own production and safety lessons learned over many years on the line. Our model, which meets a maximum active content of 52 percent paired with no less than 48 percent of a Type B safe carrier, reflects that balance of reactivity and handling that we rarely see in copycat grades circulating around the market.

    This peroxide is not something we just decided to blend and pack. We selected each raw feed material based on regular batch consistency audits. We focus on achieving a stable product that matches the narrow window required by modern continuous and batch polymerization units. End-users in acrylic monomer and polyvinyl chloride producers usually have little patience for inconsistent free radical sources. The practitioners we talk with on customer visits mention equipment fouling, variable molecular weights, or coloration problems that all link back to how peroxides break down and initiate. Our team takes that seriously. Each charger, filter station, and drum we send out holds a result of that focus.

    What Sets This Formulation Apart

    A few people confuse “peroxydicarbonates” as interchangeable. Anyone who has cleaned a clogged feed line knows you do not judge a peroxide by name alone. Di-Sec-Butyl, in this setup, brings a reliable half-life at moderate polymerization temperatures—far different from compounds that force operators to chase reactivity with process adjustments. The ≤52% specification for active ingredient achieves the right level of free radical availability for even, reproducible initiation. Living through a summer expansion at our shop, we saw what happens when peroxides run over or under spec—the resulting off-grade resin never reaches the customer, eating up tank space, time, and morale.

    We stick close to formulation controls for this product. Batch records and in-process checks track each blend, with real-time adjustment if we detect drift. Type B diluent runs above 48% for a reason: the higher content keeps the active peroxide cooled, spread out, and less prone to runaway decomposition—safety and stable performance walk hand-in-hand. Entry-level blends with plain mineral oil, or those using less consistent carriers, introduce risk we prefer to keep out of our plant and yours.

    We have lived through requests for concentrated forms in the past. Higher actives may sound appealing for logistics, but the trade-off features a jumble of shelf instability, increased sensitivity to temperature swings, and transport headaches. We lean toward controlled potency, giving process engineers the confidence to plan initiator feed rates without surprises.

    How Experience Has Shaped Manufacturing Decisions

    Our process engineers and batch operators are quick to tell stories about unexpected hiccups: material that looks clean on a lab balance but morphs days later; residual moisture prompting decomposition; one lot that traveled hundreds of kilometers during a heatwave. We design this grade with a built-in margin for the day-to-day realities our customers and staff actually see. It’s not about marketing something “safer” in theoretical language—it’s about knowing that storage rooms in production sites rarely get textbook temperature control and that containers often experience some handling stress.

    Years back, before we standardized our control systems, we saw a higher frequency of process upsets. Lumps or phase separation could appear in finished product drums—costly setbacks when they had to be reworked or scrapped. Today, we keep a rigorous blending and QA program, verifying that the ratio of active compound to diluent sits in a target window that research and field testing confirmed. Before shipping, we monitor not just assay but viscosity, visual clarity, and thermal stability, so plant operators have the benefit of lessons learned through trial, error, and system upgrades over a long manufacturing history.

    Field Use: Where Performance Counts

    Our Di-Sec-Butyl Peroxydicarbonate goes into jobs where reactivity profiles and predictable decomposition matter most. Think continuous PVC plants or acrylic casting lines—anywhere a lost hour represents a week of backlog. We see the impact of obscure differences in products firsthand. Slight variations in initiator quality shift the heat profile inside reactors, sometimes enough to nudge molecular mass of the finished resin up or down. The repercussions can hit everything from extrusion yield to end-use product appearance.

    Laboratory simulations tell part of the story, but our feedback loop relies on what user plant managers actually report after months on stream. We learned to respect small differences in stabilizer package or carrier blend. At one facility, a switch to a competitor’s high-concentration product introduced foaming and color drift; at another, batch-to-batch viscosity fluctuation demanded mid-shift process changes that nobody appreciated. Our formula responds with consistent decomposition rates under recommended conditions, with Type B diluent maintaining manageable flow and improved miscibility in typical monomer mixes.

    Working Within Regulatory and Environmental Expectations

    We have always kept abreast of evolving safety codes and environmental expectations for organic peroxides. Di-Sec-Butyl Peroxydicarbonate with this balance of active and stabilizer meets regulatory labeling and transport requirements for oxidizers within a certain risk group. Production cycles routinely include environmental monitoring, because local regulations restrict emissions and mandate waste minimization for all byproducts. We devote considerable resources to in-plant exhaust capture and waste neutralization. Diluent selection ties back into our commitment to both product function and minimized environmental liability.

    Our client base increasingly expects not just data sheets, but supporting information on compliant handling, disposal, and emergency response. We supply product backed by our reporting on shelf behavior, spillage protocols, and process ventilation recommendations. After living through an era plagued with poorly documented chemical cargoes, we take pains to ensure traceability and compliance documentation trails that stand up to third-party audits.

    Troubleshooting and Continuous Improvement

    Problems do crop up, and we deal with them by incorporating feedback into our next batch. A major customer once documented a resin haze problem traced back to interaction with trace impurities in a previous grade. Our formulation went through weeks of review, with process analytical technology upgrades added—more robust online sensors, improved lot tracking. Operators and technical teams still meet regularly to walk back through any non-conformance event.

    This has shaped how we communicate application details beyond the minimum—many polymerization shops tell us they rarely have time to dig through fine print. We offer clear application support. Our trials and test data reflect actual customer conditions rather than idealized figures. For continuous-feed reactors, we provide target dosing ranges based on observed plant performance, minimizing variability and reducing off-spec piles at the packaging stage.

    The continuous analysis of product in the plant includes thermal decomposition, shelf life in various climates, and experiment-driven modifications to packaging that keep containers safe during handling and transit. We revise labeling, drum markings, and batch tracking formats as more customers insist on lot-level traceability.

    How This Grade Differs from Other Products

    Year after year, we see confusion in the field regarding names, purities, and stabilizer choices across the peroxydicarbonate family. This specific grade, formulated and blended in our reactors, nails consistent performance for those needing medium-temperature free radical release. Compared to straight mineral oil-extended peroxydicarbonates, Type B diluent provides far less odor and mitigates agglomeration risk, which means fewer feedline blockages or strainer changes for operators. There’s a clear distinction in both plant performance and environmental exposure numbers.

    Some other products on offer from third parties may supply higher peroxide actives, but those versions risk more heat release events and show markedly shorter shelf life when actual warehouse climates are measured across seasons. Our blend intentionally contains a controlled active level to reduce end-user hazard potential while enabling long, stable process windows for those running at scale.

    We tune the particle size distribution and residual solvent content within tight specs, based on the storage and feed requirements communicated by our industrial users. Alternative peroxydicarbonate grades often forego this level of in-process adjustment. With this grade, we target ease of handling and feeding, especially where automated initiator dosing is used, ensuring less downtime and quick system flushing between runs.

    Application Experience Drives Progress

    The largest learning leaps in product development have come through close customer partnership. Early years saw far more trial and error—emergency site visits, troubleshooting phone calls in the middle of shifts, and unplanned resin disposal. We adapt the product following direct feedback: improved pourability guided changes to diluent composition; reports from shipping containers in hot climates prompted reinforced packaging and adjusted QA temperature thresholds.

    End users sometimes ask about minor tweaks: perhaps a tighter viscosity window or a custom stabilizer blend. These dialogues have set the path for most improvements across our portfolio. As a result, the process never stands still—our Di-Sec-Butyl Peroxydicarbonate continues to evolve to answer genuine pain points discovered by polymer plants, not theoretical concerns.

    Looking to the Future: Evolving Needs and Solutions

    Emerging green chemistry trends and operational safety priorities push us to keep questioning if we can make this product even better—more consistent, lower in volatile byproducts, friendlier to new-generation process equipment. We invest in catalyst R&D and bench scale reactor trials simulating unusual operational stress. Pressure from downstream users—whether it’s food packaging compliance or emissions audits—drives us to keep tuning the balance of performance and safety.

    On-site product support, scheduled audits, and real-life troubleshooting direct our efforts as much as internal targets do. The iterations we perform—whether minor tweaks in propellant content or revised handling guidelines—reflect lessons shared across hundreds of operator conversations. Extreme temperature incidents, trending regulatory updates, and rapid changes in industrial purchasing requirements all enter our R&D notebooks. Our ability to deliver product improvements rests on keeping the dialogue flowing and staying grounded in what manufacturing teams actually need from their initiator—consistency, reliability, and straightforward application support, no matter the site or shift.

    Conclusion: Value Derived from Real Experience

    With years at the reactors, seeing product make its way from tank to tank, we understand that Di-Sec-Butyl Peroxydicarbonate’s impact is measured in more than specification sheets and compliance certificates. It matters most at the production lines where a stalled feed or variable reactivity can turn profitability upside down. Each decision in formulation, blending, packaging, and service comes back to those lessons learned on the floor and in the field.

    We continue to refine this product for the people who run the plants and troubleshoot polymer lines every day, helping projects run smoother while managing genuine safety and regulatory pressures. As we adapt to industry shifts and technology changes, we rely on direct customer engagement and honest conversations, believing that the best solutions arise from facing challenges head-on, not from abstract promises. Di-Sec-Butyl Peroxydicarbonate, in this grade and format, represents years of incremental gains earned by looking closely at both process demands and real-world use.