Dipentaerythritol

    • Product Name: Dipentaerythritol
    • Chemical Name (IUPAC): 2,2-Bis(hydroxymethyl)-1,3-propanediol neopentyl glycol
    • CAS No.: 126-58-9
    • Chemical Formula: C10H22O7
    • Form/Physical State: White crystalline solid
    • Factroy Site: Yihua Building, No. 52 Yanjiang Avenue, Yichang City, Hubei Province
    • Price Inquiry: sales3@boxa-chem.com
    • Manufacturer: Hubei Yihua Group Co., Ltd.
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    Specifications

    HS Code

    633069

    Cas Number 126-58-9
    Molecular Formula C10H22O7
    Molar Mass 254.28 g/mol
    Appearance White crystalline powder
    Melting Point 220-226°C
    Boiling Point Decomposes
    Solubility In Water Slightly soluble
    Odor Odorless
    Density 1.42 g/cm³
    Ph Neutral (in aqueous solution)
    Stability Stable under normal conditions

    As an accredited Dipentaerythritol factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing Dipentaerythritol is packaged in 25 kg net weight woven plastic bags with inner polyethylene liners for moisture protection and ease of handling.
    Container Loading (20′ FCL) Dipentaerythritol is loaded in 20′ FCL containers, typically packed in 25kg bags, totaling about 16 metric tons per container.
    Shipping Dipentaerythritol is typically shipped in tightly sealed bags, drums, or bulk containers to prevent moisture absorption and contamination. It should be stored and transported in cool, dry conditions away from incompatible materials and ignition sources. Ensure containers are clearly labeled and handled in accordance with local and international chemical shipping regulations.
    Storage **Dipentaerythritol** should be stored in a tightly sealed container in a cool, dry, and well-ventilated area, away from moisture, heat sources, and incompatible materials such as strong oxidizers. The storage area should be free from ignition sources. Containers must be clearly labeled, and exposure to dust should be minimized through proper handling and storage practices.
    Shelf Life Dipentaerythritol has a shelf life of at least 2 years when stored in a cool, dry, and well-ventilated area.
    Application of Dipentaerythritol

    Purity 98%: Dipentaerythritol with purity 98% is used in alkyd resin synthesis, where it enhances molecular uniformity and final polymer strength.

    Molecular weight 254.24 g/mol: Dipentaerythritol with molecular weight 254.24 g/mol is used in polyurethane production, where it improves crosslink density and durability of the finished material.

    Melting point 260°C: Dipentaerythritol with melting point 260°C is used in synthetic lubricant formulations, where it ensures high thermal stability and extended service life.

    Particle size D90<75 μm: Dipentaerythritol with particle size D90<75 μm is used in flame retardant additives, where it provides superior dispersion and consistent fire resistance performance.

    Hydroxyl value ≥ 1240 mg KOH/g: Dipentaerythritol with hydroxyl value ≥ 1240 mg KOH/g is used in surface coatings, where it increases curing speed and scratch resistance.

    Ash content ≤ 0.05%: Dipentaerythritol with ash content ≤ 0.05% is used in plasticizer manufacturing, where it promotes clarity and minimizes residue formation.

    Stability temperature up to 180°C: Dipentaerythritol with stability temperature up to 180°C is used in synthetic ester lubricants, where it maintains viscosity and prevents decomposition under operational heat.

    Moisture content ≤ 0.2%: Dipentaerythritol with moisture content ≤ 0.2% is used in epoxy resin hardeners, where it ensures optimal reaction rates and enhances adhesive performance.

    Volatility ≤ 0.01%: Dipentaerythritol with volatility ≤ 0.01% is used in PVC stabilizer systems, where it reduces loss on heating and improves long-term plastic stability.

    Bulk density 0.6 g/cm³: Dipentaerythritol with bulk density 0.6 g/cm³ is used in powder coating formulations, where it facilitates uniform mixing and precise dosing.

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    Certification & Compliance
    More Introduction

    Introducing Dipentaerythritol: Reliable Performance for Modern Industry

    Dipentaerythritol isn’t a flashy chemical that dominates the headlines, but over the years, I’ve seen how it holds its ground as a workhorse ingredient across many modern industries. Making coatings tougher, resins more stable, and lubricants last longer — these are the quiet results that matter most in daily production. Heard about plasticizers that support environmental safety or flame retardants that keep households safer? Behind the scenes, Dipentaerythritol quietly supports these efforts with its stable carbon structure and versatile functionality.

    Why Dipentaerythritol Stands Out

    In labs and factories, people look for materials they can trust to work the same way each time. Dipentaerythritol, often available as a white crystalline solid, stands out because of its chemical backbone with six hydroxyl groups. This gives it remarkable flexibility in synthesis. For instance, using it in alkyd resins for paints—an area where performance and cost both matter—producers often share that they consistently hit durability targets and protect surfaces for years, not just months.

    If you’ve ever tried to weatherproof wood or metal, you know the real test comes in months or even years of exposure. Dipentaerythritol-based resins provide stronger cross-linking compared to other polyols. What does that mean for everyday people? They see fences that don’t crack at the first sign of sun or storms. For manufacturers, this reliability saves time and reduces returns.

    Key Models and Specifications

    I’ve noticed the product usually comes in standardized grades—whether for industrial polymer synthesis or for specialized manufacturing. Purity usually lands above 98%, though the best suppliers keep impurities like mono- and tripentaerythritol well below 2%. Granule size matters too, because fine, free-flowing powders can speed up batch production, while coarse forms may suit other handling preferences. Color is important; reputable producers keep it close to pure white, which signals fewer contaminants that could disrupt sensitive applications. Moisture content rarely exceeds 0.5%, ensuring that sticky production disasters are kept at bay.

    For technical teams, there’s always a checklist. Melting points sit around 216 to 221°C, roughly matching textbook numbers, which helps quality departments weed out subpar lots on the spot. Solubility in water is minimal, which often surprises newcomers, as the molecule looks so hydrophilic at first glance. In organic solvents, especially at higher temperatures, Dipentaerythritol breaks in and does its job.

    Applications That Shape Everyday Products

    Most days, the work of Dipentaerythritol goes unnoticed. It is poured into thick, creamy alkyd paints, added to UV-cured coatings that give cellphone screens a lasting shine, and turned into esters for synthetic oils that keep cars humming through sweltering summers. Every time someone opens a new container of fire-resistant cable insulation or sees gloss-perfect auto trim, Dipentaerythritol often played a small but steady role.

    In practice, I’ve watched formulators select Dipentaerythritol for backbone molecules in resins because they want something sturdy and consistent. More complex hydroxyl groups mean tougher binders. Moldmakers and surface coaters notice better thermal stability and more reliable film formation when using Dipentaerythritol-derived resins. For heat-resistant lubricants and greases, its chemical structure leaves behind less residue and helps machinery last longer between maintenance intervals. Environmentally, its use in biodegradable esters supports technically strong, safer alternatives to legacy petrochemical products.

    Beyond these bulk applications, you find Dipentaerythritol in specialized plastics used for electronics, offering flame retardant properties. If you’ve ever worked in this corner of the industry, you know getting robust flame performance isn’t easy. Materials with just enough flame resistance, but without harmful additives, make a major difference in finished product safety and environmental impact.

    Comparing Dipentaerythritol to Other Polyols

    Plenty of folks ask why chemists would pick Dipentaerythritol over cheaper or simpler options. Conventional pentaerythritol comes up a lot, and so does trimethylolpropane (TMP). I remember years ago trying to improve weather resistance in an outdoor enamel. Regular pentaerythritol offered acceptable stability, but results jumped noticeably with Dipentaerythritol—the finish hardened faster and just didn’t wear down as quickly. The truth is in the numbers. You get more active sites per molecule, so cross-linking gets denser, toughness increases, and heat resistance comes up a notch.

    TMP and similar alcohols work for basic polyesters or lubricants when cost comes first. For higher loads and more critical gear, though, Dipentaerythritol’s multi-functionality beats single-function molecules every time. Manufacturers seeking “green chemistry” options also look closer at Dipentaerythritol-based plasticizers and esters, because they allow for high performance with less toxicity and easier biodegradation compared to traditional alternatives.

    Industry Adoption and Real-World Feedback

    Each sector adopts Dipentaerythritol differently, shaped by product standards and regulatory pushes. The coatings industry amplifies its use in high-gloss alkyds and powder coatings that don’t yellow under UV exposure. Wire & cable manufacturers, pushed by new fire safety codes, transition to more halogen-free, flame-retardant resins. Paper and textile finishers turn to Dipentaerythritol-based agents that bond tightly, giving a smoother finish and improving resistance to moisture.

    Feedback from on-the-ground engineers often sounds the same: using high-purity Dipentaerythritol creates fewer batch inconsistencies, which translates into fewer unplanned stoppages, more predictable scale-up, and stronger regulatory compliance. These hands-on lessons matter when production volume ramps up, or when fine-tuned performance is required in finished goods.

    Sourcing and Supply Issues

    Many companies face bottlenecks trying to secure steady supplies of high-grade Dipentaerythritol. Petrochemical swings and changing environmental regulations challenge the usual supply chain. I’ve seen purchasing agents scramble, looking for trusted sources with transparent quality records. Working with suppliers who can document in-process analytics and confirm low impurity levels makes a real difference, especially for export markets where inspection standards continue to toughen up each year.

    Shipping and packaging add another level of complexity. Fine powders need dry, sealed storage to keep them from clumping or reacting with humidity. If they’re handled poorly, even the best material loses value fast. As regulations around chemical shipping evolve, companies increasingly demand suppliers show full traceability from raw material to delivered lot. Not every producer can keep up. Producers who can't provide data on heavy metals, residual solvents, or batch consistency often find themselves cut from approved vendor lists.

    Sustainability and the Road Ahead

    Like other chemicals, Dipentaerythritol attracts more attention now that environmental standards keep rising. Its use in formulating biodegradable lubricants, green plasticizers, and low-emission paints reflects that shift. Each time a new eco-label appears on a can of wood stain or a box of wire, those in the supply chain know what it took to get there. Back in the lab, countless trials test Dipentaerythritol’s safety profile, toxicity, and performance in final formulations.

    Factoring in life cycle analysis, Dipentaerythritol comes out ahead of some traditional polyols. Production methods based on renewable feedstocks are starting to appear, especially in parts of the EU focused on circular economy practices. Despite early-stage hurdles, this development hints that dipentaerythritol may one day offer the same strengths with a much lighter environmental footprint. Industry groups keep calling for transparency not just around process safety, but also about water and energy use in production. The best producers publish clear, actionable data to reassure end users and regulators alike.

    Health and Safety: What Matters in Use

    People handling Dipentaerythritol should take proper precautions as with any industrial chemical. Dust inhalation, particularly in bulk use, calls for good ventilation and personal protection. I’ve worked on factory floors where a little care in handling paid big dividends, keeping operations safe and staff healthy. In finished goods—paints, adhesives, plastics—residual Dipentaerythritol rarely presents hazards, but ongoing research checks for migration or exposure risks to ensure customer safety.

    On the regulatory front, increased scrutiny from the EU and US EPA on VOC content and potential endocrine disruptors reinforces the value of materials like Dipentaerythritol that deliver strong performance without raising red flags in toxicology reports. Companies stay vigilant for emerging research, but the material’s long commercial history offers confidence to quality teams under pressure to meet strict compliance targets.

    Supporting a More Efficient Production Cycle

    Each manufacturing cycle presents its own set of headaches, from off-spec raw materials to unexpected plant outages. Dipentaerythritol offers a kind of quiet reliability that doesn’t steal the spotlight but keeps factories humming. Its high melting point makes it easy to incorporate into hot-melt blends or extrusion operations without overhauling established equipment. Formulators appreciate that it reacts cleanly and produces fewer unwanted byproducts, trimming both waste management costs and regulatory headaches.

    If you’ve worked on line troubleshooting, you’ve likely seen batches ruined by inconsistent additives—dusty, variable-grade polyols, for example, can derail a whole night’s work. Dipentaerythritol from reputable suppliers, in contrast, brings a predictability that makes scaling up simpler. Smooth integration helps operators avoid last-minute changes and gets products out the door on a tighter schedule.

    Toward New Applications and Innovations

    R&D teams regularly push boundaries by blending Dipentaerythritol into new formulations. Demand for higher-performance, environmentally-friendly coatings and plasticizers keeps rising. I’ve watched teams tinker with advanced synthetics—adding Dipentaerythritol to make heat-activated adhesives that bind electronics more securely than ever, or helping create tough, bio-based window coatings that stand up to years of exposure.

    Pharmaceutical and cosmetic labs explore novel esters based on Dipentaerythritol for controlled-release medicines or long-lasting creams. Early results suggest these molecules could enable next-generation products that perform better while using safer, more sustainable ingredients. While not a silver bullet, Dipentaerythritol brings a practical toolkit for chemists hunting solutions to complex challenges.

    Choosing Dipentaerythritol: Is It Right for Every Project?

    For teams weighing raw materials, every decision comes down to value and fit. Dipentaerythritol stands out as a multi-function molecule suited for demanding, performance-oriented products. It doesn’t replace all other ingredients—lower-cost options serve best in basic, low-performance applications. In cases where lasting outdoor exposure, flame resistance, or environmental labeling matter, Dipentaerythritol shows its true value.

    Its ability to create denser, tougher polymer networks sets it apart from single-functional alcohols. In my experience, making that choice pays off in fewer field failures and better end-user satisfaction. Brands that invest in high-grade raw materials see the difference not just in lab test sheets, but in products that withstand real-world use and earn customer loyalty over time.

    Conclusion: Dipentaerythritol as a Catalyst for Progress

    Looking back over years spent in coatings and specialty chemicals, I see Dipentaerythritol as a quiet but influential player. Technological progress—greener plasticizers, tougher resins, safer flame retardants—depends on workhorse molecules like this one. Its consistent performance, high purity, and flexibility in application give manufacturers a practical edge as they tackle today’s commercial and regulatory hurdles.

    Just as importantly, Dipentaerythritol helps bridge old-school reliability and emerging sustainability, supporting innovations that set higher standards for safety and environmental responsibility. As industries continue pushing for greater transparency and lower impact, this overlooked molecule gains new recognition. For engineers, formulators, and buyers alike, Dipentaerythritol offers practical, proven advantages that ripple across supply chains. It may not receive much attention in the headlines, but its direct impact on the quality, safety, and sustainability of modern products is hard to overstate.