Anhui Liwei Chemical Co., Limited
Products

Carbonic Acid - 4,4'-Propane-2,2-Diyldiphenol (1:1)


    • Product Name Carbonic Acid - 4,4'-Propane-2,2-Diyldiphenol (1:1)
    • Alias Bisphenol A carbonate
    • Einecs 500-049-3
    • Mininmum Order 1 g
    • Factory Site Lingwu, Yinchuan, Ningxia, China
    • Price Inquiry sales2@liwei-chem.com
    • Manufacturer Anhui Liwei Chemical Co., Limited
    • CONTACT NOW
    VTB
    Specifications

    HS Code

    835124

    Chemical Name Carbonic Acid - 4,4'-Propane-2,2-Diyldiphenol (1:1)
    Common Name Bisphenol A Carbonate
    Molecular Formula C16H18O5
    Molecular Weight 290.31 g/mol
    Cas Number 3296-90-0
    Appearance White solid
    Solubility In Water Insoluble
    Melting Point 225-230°C
    Boiling Point Decomposes before boiling
    Density 1.20 g/cm³
    Odor Odorless
    Storage Conditions Store in a cool, dry place

    As an accredited Carbonic Acid - 4,4'-Propane-2,2-Diyldiphenol (1:1) factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing 500g of Carbonic Acid - 4,4'-Propane-2,2-Diyldiphenol (1:1) is packaged in a sealed, amber glass bottle with hazard labels.
    Shipping **Shipping Description:** Carbonic Acid - 4,4'-Propane-2,2-Diyldiphenol (1:1) should be shipped in tightly sealed containers, protected from moisture and direct sunlight. Use appropriate hazard labeling if required. Transport according to local, national, and international regulations for chemical shipments. Handle with care to prevent spills or leaks during transit.
    Storage Store Carbonic Acid - 4,4'-Propane-2,2-Diyldiphenol (1:1) in a cool, dry, and well-ventilated area, away from direct sunlight, heat sources, and incompatible substances such as strong acids and bases. Keep container tightly closed, clearly labeled, and protected from moisture. Follow appropriate safety guidelines, wearing suitable personal protective equipment when handling. Store according to local regulations and manufacturer’s instructions.
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    Certification & Compliance
    More Introduction

    Introducing Carbonic Acid - 4,4'-Propane-2,2-Diyldiphenol (1:1): A Benchmark Compound from Our Production Lines

    What Sets This Compound Apart

    In today’s chemical market, clear distinctions in material quality often translate to downstream advantages for processors and formulators. Our Carbonic Acid - 4,4'-Propane-2,2-Diyldiphenol (1:1), also known in technical discussions as the 1:1 adduct of carbonic acid and bisphenol A, delivers the consistency of structure and purity many applications demand. As a manufacturer with decades invested in polycarbonate and specialty resin production, we've refined each batch to meet real-world application pressures—not just analytical standards.

    This compound stands at the intersection of our most advanced phosgene-based and non-phosgene synthesis routes, offering a material with a narrow molecular weight distribution, high transparency, and robust thermal stability. Industry output relies on such reliable characteristics. Whether pressed into optical lenses, extruded into sheet for safety glazing, or polymerized for medical applications, these benchmark qualities drive process yield upward and reduce troubleshooting cycles.

    Our Model and Production Experience

    Our standard production model for Carbonic Acid - 4,4'-Propane-2,2-Diyldiphenol (1:1) has matured from years of iterative optimization. We work directly with global raw material suppliers to secure high-purity bisphenol A and carbonyl sources, then handle every critical step in-house, from reaction to downstream purification. Research staff and engineers monitor every lot, tracking residual monomer content, moisture, and thermal history. We keep batch-to-batch consistency tight, stepping beyond the looser uniformity seen from resellers or importers blending off-spec material.

    Practical experience has shown that the ideal equilibrium in our synthesis results in a 1:1 molar ratio, as called for in demanding engineering plastics and composite grades. Some processors notice immediate gains in extruder throughput and a drop in surface defects when switching to our lots. It's not marketing spin—most off-brand options lack this dialed-in stoichiometric balance, and deviations manifest in the end product.

    Physical and Chemical Characteristics That Matter

    Chemists recognize this adduct by its robust carbonate backbone, courtesy of the reaction between bisphenol A and carbonic acid. Finished product appears as a white to off-white powder or granular solid, depending on downstream granulation. The molecular structure integrates two aromatic rings bridged by an isopropylidene group, interrupted by carbonate linkages. This arrangement imparts chemical resistance to many acids and bases and stands up to UV exposure better than many aliphatic analogs.

    End uses often dictate particle size and bulk density, and we continually fine-tune these attributes based on processor feedback. Our team leverages controlled drying systems to keep residual water content sufficiently low to avoid hydrolysis during melt processing. This isn’t simply about hitting a number on a datasheet—we know how hydrolytic instability in feedstocks can cascade into expensive shutdowns or rejected lots in compounding lines.

    Performance That Drives Application Success

    Processors in optics and high-performance glazing run into problems when raw materials introduce haze or inconsistent flow during molding. Our product’s low chromophoric impurity content and stable molecular weight mitigate these risks. Producers have seen lenses and sheet stock maintain optical clarity over extended outdoor service, even under harsh weathering cycles. In such industries, a marginal reduction in yellowing index can tip the balance between robust sales and customer complaints.

    Electrical and electronics users of carbonic acid derivatives depend on the flame-retardant properties and low dielectric constant our material delivers. Polymers built with this raw material consistently outperform lower-cost blends in insulation and housing parts, based on hands-on feedback from field installers and assembly line supervisors. Rigid adherence to sub-ppm chloride and iron levels reduces corrosion of processing equipment, a concern often overlooked until material switchover exposes hidden costs.

    Comparing with Alternative Sources and Other Materials

    Not every powder labeled “carbonic acid and bisphenol A adduct” follows the same process route. Third-party resellers and traders usually offer repackaged bulk shipments, sometimes blended with fines or sweepings. These practices sabotage a chemical’s profile, introducing unpredictable melting points or even causing gassing in extruders. Direct manufacturing avoids these pitfalls.

    Supply chain transparency holds tangible value for downstream customers. Unlike anonymous spot-market material, buyer partners gain direct access to our technical staff, pilot production capability, and analytical support. Many projects in automotive and consumer electronics switched over after observing out-of-spec failures with bulk-purchased alternatives. Consistency comes from real process control, not just a certificate of analysis stapled to a bag.

    Lab-level resynthesized samples used in research sometimes differ from commercial-scale material even when molecular formulas match. We regularly collaborate with academic consortia to confirm that our product mirrors the properties required in scaled product lines, not just bench chemistry. Our understanding comes from troubleshooting compounding lines, not theoretical purity claims.

    Real-World Usage Patterns and Trends

    Demand for carbonic acid and bisphenol A adducts has moved beyond plastics and resins. Medical equipment manufacturers depend on the compound’s proven biocompatibility. Our teams work closely with these partners through design phases, offering lot-specific analysis of extractables and leachables—a critical concern where patient safety relies on chemical stability.

    We see increasing adoption in the automotive sector, especially for applications targeting weight reduction without sacrificing impact toughness. Sheets and molded parts based on this compound cut curb weight and boost fuel economy. Production managers and engineers alike credit the impact energy absorption and stress crack resistance that derive from reproducibly manufactured base resins. Each season, we review customer feedback to spot trends—deviation tolerance is getting tighter, and applications aim for higher demands on clarity and lifecycle durability.

    In digital device casings and structural enclosures, our product holds up to precision molding and multi-component assembly. A smooth melt flow and reliable gel point support automated production lines, helping customers minimize tool fouling and defect rates. Manufacturers in this space prize not only technical specifications, but also the certainty that every shipment carries the same melt viscosity and color stability, batch after batch.

    Supporting User Success at Every Stage

    Direct dialogue with processors prompted us to tailor particle size for faster conveyance and easier dosing into feeders. We listened when customers in compounding pressed for larger, less dusty granules, and adapted our lines accordingly. Years in contract manufacturing have shown how such small changes can remove plant bottlenecks and upgrade operator safety.

    Our teams frequently run test batches alongside partner integrators, helping train shift crews in optimal drying times and mixing protocols. We’ve seen firsthand how minor contamination in raw chemical shipments—often due to poor repackaging at trader level—wipes out hours of production. Our customers have come to rely on our attention to these details because their success rests on disciplined process control from source to shipment.

    Processors interested in regulatory compliance, particularly in markets with stringent REACH or FDA oversight, benefit from our fully traceable production records. Audits from global users often focus on line-level segregation and cleaning procedures. Our technical teams guide partners through these checks, demonstrating integrity in every step—a layer of reassurance that bulk distributors can’t match.

    The Role of Quality Assurance in Competitive Manufacturing

    Quality assurance protocols at our facility do not rely solely on periodic lab checks. Inline monitoring of key quality metrics remains our standard, given its proven gains in early detection of process drift. Modern manufacturing demands rapid response to trace impurity spikes, and our staff has responded by installing real-time spectroscopic and chromatographic sensors in major batch lines. Such foresight has paid off in reduced customer claims and sped-up troubleshooting.

    Continuous improvement efforts bring shop floor experience to bear. Maintenance staff track filter life and pressure drop across reactors, making small adjustments to avert unplanned shutdowns. Technical specialists experiment on pilot reactors with solvent recycling rates and agitation speeds, often identifying tweaks that later become standard procedure. The outcome: fewer off-spec lots and higher realized yields, benefits that flow directly to users.

    Feedback from regional supply chain audits led us to shore up packaging practices as well. Heavy-gauge liners, lot-specific barcoding, and sealed pallets for ocean transport cut down on transit-induced contamination. These changes arose from studying field returns and collaborating closely with end users—a cycle of improvement that distinguishes a committed manufacturer from hands-off commodity brokers.

    Environmental Responsibility and Sustainability Practices

    Evolving environmental benchmarks have nudged both us and our customers to rethink feedstock sourcing and spent product recovery. Our plant operators pioneered closed-loop systems for byproduct capture, reducing the carbon and waste impact of every batch. Where possible, we purchase renewable power and work with municipalities and regulators to ensure effluent neutrality.

    Some customers, especially in Europe and North America, increasingly mandate life cycle analyses as part of sourcing decisions. Our technical and regulatory affairs teams have responded with transparent disclosures on water usage, energy input per kilogram produced, and waste recovery rates. These numbers aren’t hidden in marketing literature. Instead, they figure directly into buying discussions with partners focused on corporate social responsibility as a core part of procurement.

    On-site waste reduction programs, from improved solvent recovery to targeted heat exchange upgrades, flow from conversations with both environmental groups and plant engineers. We know that every kilogram of reusable solvent or recovered heat slashes process overhead and improves compliance ratios—measurable benefits that compound over every fiscal year. Our investment aims squarely at shrinking the real-world impacts of bulk chemical production.

    Collaborative Approach to Innovation

    Some of the biggest performance leaps in this segment have come from collaboration with research partners. For instance, our input into polycarbonate chain-extension research helped clarify how molecular weight control dovetails with improved mechanical properties in finished parts. Co-developing resin grades alongside equipment manufacturers shortens the feedback loop: when a processor reports a new issue in molding or extrusion, our process engineers can respond quickly with line trials and technical refinements.

    Recent years brought exploration into bio-based alternatives for bisphenol A and options for phosgene-free synthesis to support a shift toward greener chemistry. Early results show promise for reducing greenhouse gas intensity while holding on to the core reliability traits that long-term users expect. These R&D efforts keep direct lines of communication open between plant and laboratory—something rarely seen outside manufacturing-focused organizations.

    Practical improvements frequently bubble up from equipment operators themselves. We encourage plant teams to share frontline insights, whether it’s a trick to cut cleaning time or an observation about feedstock variability in winter months. This cycle of internal innovation drives our reputation for reliability and keeps users’ needs firmly in our sights.

    Understanding Customer Challenges and Solutions That Work

    Industrial buyers prioritize uptime, predictable processing, and clear technical service. Over the years, we’ve learned to identify common pain points—be it surging inbound moisture during the rainy season, labeling mismatches, or seasonal price volatility in feedstock markets. Close links to our logistics team helped us reroute and precondition shipments during transit disruptions, keeping end users’ lines running without interruption.

    Frequently, troubleshooting starts with an issue traced back to the raw material: a spike in haze, unexplained viscosity change, or new odors in finished goods. Our approach brings sales, technical, and production teams together to investigate, often conducting parallel runs on internal pilot lines. We document every root cause and remediation step, sharing findings candidly with customers. Not every solution involves a dramatic process change—sometimes, it’s as practical as adapting packaging to prevent condensation in storage.

    Our long-term accounts confirm that consistent communication and readiness to adapt set the groundwork for productive relationships. We offer support beyond the point of sale because both parties shoulder the risk of raw material variability. Our motive remains grounded in experience: today’s throughput gains and quality improvements spring from investments in frontline technical support and readiness to refine processes based on customer realities.

    Moving Forward: Built for a Dynamic Marketplace

    As markets evolve, demand for compounds like Carbonic Acid - 4,4'-Propane-2,2-Diyldiphenol (1:1) shifts alongside environmental regulations, safety requirements, and consumer trends. We’ve observed a rising preference for materials offering both performance and traceability, whether destined for next-generation vehicles, medical innovations, or green building applications. Our operations adapt dynamically, updating production processes and audit documentation as regulations change across regions.

    Trade disruptions, global supply instability, and evolving customer standards represent routine hurdles. Broadening our supplier base, integrating digital traceability, and boosting in-house test data coverage all spring from our direct experience navigating these challenges. Our production and supply chain leadership teams double down on resilience, so customer partnerships remain stable—even in volatile years. These are lessons learned not from theory, but from walking production floors and solving practical problems daily.

    Building on a Foundation of Expertise and Trust

    Trust grows from delivery on commitments. From our vantage as a chemical producer, every strong relationship reflects a foundation of frank communication, technical honesty, and shared problem-solving. Customers don’t just buy a bag of material—they tap into decades of knowledge in formulation, synthesis, and troubleshooting. We work with buyers to match their needs with tailored production runs, draw on pilot-scale capabilities to resolve unique issues, and remain ready to adjust practices in line with market changes.

    Our focus remains steadfast on providing reliable, well-characterized Carbonic Acid - 4,4'-Propane-2,2-Diyldiphenol (1:1) that supports the ambitions and output demands of each partner. From plant manager to bench chemist, every stakeholder benefits from our consistency, experience, and drive for improvement. Our reputation comes from real process control, continuous feedback, and an openness to both feedback and change—traits earned through direct industry engagement and day-to-day production responsibility.