Bio-based PDO
- Product Name: Bio-based PDO
- Chemical Name (IUPAC): 1,3-Propanediol
- CAS No.: 503-30-0
- Chemical Formula: C3H8O2
- Form/Physical State: Liquid
- Factroy Site: No.1788, Development Road, Ruian Economic Development Zone, Ruian, Wenzhou, Zhejiang
- Price Inquiry: sales3@ascent-chem.com
- Manufacturer: Huafon Group Co., Ltd
- CONTACT NOW
- Bio-based PDO is typically used in formulations when diol content and viscosity must be controlled within specific ranges.
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HS Code |
278089 |
| Product Name | Bio-based PDO |
| Full Name | Bio-based 1,3-Propanediol |
| Chemical Formula | C3H8O2 |
| Molecular Weight | 76.09 g/mol |
| Appearance | Colorless, odorless liquid |
| Boiling Point | 213°C (415°F) |
| Melting Point | -27°C (-16.6°F) |
| Density | 1.06 g/cm³ at 20°C |
| Solubility | Miscible with water |
| Renewable Source | Derived from plant-based sugars (e.g., corn, sugarcane) |
| Primary Application | Used in the production of polytrimethylene terephthalate (PTT) and other polymers |
| Toxicity | Low toxicity |
| Biodegradability | Biodegradable under aerobic conditions |
As an accredited Bio-based PDO factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Bio-based PDO is packaged in a 200 kg blue HDPE drum, securely sealed, with clear labeling indicating contents and safety information. |
| Container Loading (20′ FCL) | Container Loading (20′ FCL) for Bio-based PDO: 80 drums (200 kg each), total 16,000 kg, securely palletized for safe transport. |
| Shipping | Bio-based PDO (1,3-Propanediol) is shipped in tightly sealed, corrosion-resistant drums or ISO tanks to prevent contamination and moisture exposure. Containers are clearly labeled and transported under standard temperature conditions, with careful handling to avoid leaks or spills. Compliance with relevant safety and chemical transportation regulations is ensured throughout shipping. |
| Storage | Bio-based PDO (1,3-propanediol) should be stored in tightly sealed containers, away from heat sources, direct sunlight, and incompatible materials such as strong oxidizers. The storage area should be cool, dry, and well-ventilated to prevent moisture absorption and degradation. Ensure proper labeling, and use corrosion-resistant materials for containers to avoid contamination and maintain product quality. |
| Shelf Life | The shelf life of bio-based PDO (1,3-propanediol) is typically 1-2 years when stored in cool, dry, sealed containers. |
Applications of Bio-based PDO in Industrial ManufacturingBio-based 1,3-propanediol (PDO) serves as a core monomer and functional additive for multiple industrial sectors. The following application sections detail actual downstream usage scenarios, including compliance standards, technical ratios, integration processes, and finished product types involved in commercial chemical and materials production. 1. Polytrimethylene Terephthalate (PTT) Fiber ProductionThe use of bio-based 1,3-propanediol as a primary diol in PTT fiber manufacturing allows textile producers to lower their petroleum dependence and achieve desirable mechanical and dyeing properties. Reacting with purified terephthalic acid, PDO directly participates in melt-polymerization under nitrogen, forming the polyester backbone. Process adjustments—such as catalyst level, vacuum control, and residence time—must accommodate PDO’s boiling point and reactivity. The resulting polymer shows notable stretch recovery and soil resistance, relevant for both apparel and industrial carpet lines. Industry compliance standards
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2. Polyurethane Elastomers and FoamsPDO functions as a chain extender or polyol for polyester- and polyether-based polyurethanes. Its linear diol structure delivers improved hydrolysis resistance and elasticity to the final polymer network. Polyurethane manufacturers mix PDO with isocyanates, catalyst, and other polyols in controlled batch or continuous reactors. Parameters such as stoichiometry, reaction temperature, and catalyst choice affect the final crosslinking, density, and flexibility. Strict tracking of the bio-content enables downstream customers to produce designated bio-preferred products for consumer and industrial use. Industry compliance standards
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3. Biodegradable Polyesters (e.g., Polytrimethylene Succinate - PTS)Bio-based PDO is reacted with succinic acid to form polytrimethylene succinate and related biodegradable polyesters. This chemistry allows compounders to supply fully bio-based, compostable alternatives to traditional plastics. Melt-polycondensation typically uses elevated temperatures, specific catalysts (such as titanium or tin-based), and under vacuum to drive off water byproducts, achieving linear polymers with defined molecular weights. Strict analytical controls—intrinsic viscosity, color, and end-group concentration—ensure consistencies for film, fiber, or molded goods application. Industry compliance standards
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4. Cosmetic and Personal Care IngredientsPDO produced via bio-fermentation serves as a multifunctional solvent, humectant, and preservative booster in regulated cosmetic formulations. Manufacturers employ it in skin creams, lotions, and hair care products to enhance sensorial properties and stability. Due to low toxicity and excellent skin compatibility, it offers advantages over petroleum-based glycols. GMP standards and batch traceability remain critical, while rigorous microbiological and analytical screening ensures the raw material fits stringent personal care requirements. Final inclusion level reflects performance needs and exposure assessments dictated by formulation safety review. Industry compliance standards
Typical usage ratio
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5. Engineered Polyols for Coating and Adhesive FormulationsLarge-scale formulators utilize bio-based PDO as a reactive polyol to synthesize specialty aliphatic polyesters and as a co-monomer in industrial coating resins. Enabled by its bifunctional OH-groups, PDO incorporation leads to low-viscosity, high-gloss, and faster curing times in waterborne and solventborne systems. PDO is metered in during resin synthesis, allowing fine-tuning of the crosslink density, hardness, and haze resistance needed for each system. Adjustments in stoichiometry with diacids drive desired performance for application in wood, metal, and flexible packaging coating operations. Industry compliance standards
Typical usage ratio
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6. Solvent Systems for Electronic and Printing InksBio-based 1,3-propanediol acts as a co-solvent offering low toxicity, high polarity, and controlled evaporation in the production of electronic pastes and printing inks. Ink compounders select PDO to improve pigment dispersion, solubilize functional polymers, and reduce volatile organic compound (VOC) output. The solvent’s performance under different drying and film-formation conditions proves crucial for high-resolution, fast-drying inks used in flexographic and inkjet markets. Strict analytical protocols and batch consistency remain mandatory to satisfy downstream print and electronics OEMs. Industry compliance standards
Typical usage ratio
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Competitive Bio-based PDO prices that fit your budget—flexible terms and customized quotes for every order.
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- Bio-based PDO is manufactured under an ISO 9001 quality system and complies with relevant regulatory requirements.
- COA, SDS/MSDS, and related certificates are available upon request. For certificate requests or inquiries, contact: sales3@ascent-chem.com.
Bio-based PDO: Real Solutions from Those Who Make It
Understanding Real Bio-based PDO
Bio-based 1,3-Propanediol (PDO) stands on the production line every day. We see it take shape, from renewable feedstocks to the clear, versatile product that leaves our tanks. Most of the PDO used in industry came from fossil sources for decades. Petroleum and natural gas-based routes got the job done, but costs, volatility, and carbon emissions kept piling up. Some years ago, we put our efforts into bio-based production, using renewable feedstocks like corn sugar. It took no small investment. The process doesn’t just mimic traditional PDO chemistry; it pivots to fermentation, tapping into the robustness of bacterial cultures. Through this method, the PDO that emerges leaves a lower carbon footprint—and when we talk to partners who track LCA (life-cycle analysis) for their own customers, that difference makes downstream products more attractive on shelves and in regulatory reviews.
We manufacture several forms and grades of bio-based PDO; one core model is the high-purity industrial grade, targeted for polymer synthesis and specialty chemical applications. Each lot meets specifications for water content, color, and residual impurity control. We monitor molecular weight, density, and acidity throughout the process. Variations in product grade result from our finishing, not just base feedstock, so we have real control over what goes out the door. Consistency comes from not only the equipment, but also hands-on attention from technicians who know what slight process upsets look like. This matters when processors in fibers, personal care, or engineered plastics need the same base every time and can’t afford off-quality shipments.
Making the Switch to Renewable PDO
Each time a customer calls to inquire after the differences between bio-based and petrochemical PDO, we come back to a few grounded realities. Renewable PDO sources cut carbon emissions at the source. They drop in seamlessly where the process demands technical-grade 1,3-propanediol, but with tangible sustainability benefits. For every ton produced, the renewable process means less fossil carbon emitted, whether that’s measured in Scope 1, 2, or downstream emissions for a given supply chain.
Beyond climate factors, supply risk stands out. Our fermentation feedstocks come from stable agricultural markets. Price and availability move with harvests, not oil embargoes or gas field discoveries halfway across the planet. Bio-based PDO capacity can ramp as farmers adapt to demand. This resilience proved crucial during recent external shocks; plants running on renewables kept up supply, even as other chemical chains flagged on upstream disruptions. The stability from growing, not extraction, shows up in both monthly quotes and long-term agreements.
Traceability brings real value here. We maintain records from feedstock origin through finished product. Auditable tracking means downstream users can submit to brand audits, regulatory review, and global certification bodies with more confidence. Brands we supply in textiles and packaging industries often present product stories to consumers—our LCA and trace documents back those claims. The PDO we produce contains no residual petroleum compounds. Third-party testing confirms compliance for food-contact and cosmetic applications where performance, odor, and purity standards exceed standard-grade requirements.
Engineering and Processing Benefits Straight from the Maker
In our daily work, bio-based PDO proves itself in practical operations. High compatibility with polytrimethylene terephthalate (PTT) polymerization gives polyester fiber producers a fast route to biobased yarns. The diol’s low toxicity stands out during handling. Maintenance teams appreciate lower equipment fouling and less abrasive by-products compared to some larger-molecule glycols. PDO’s molecular structure presents two primary alcohol groups, driving uniform reaction kinetics in key syntheses. This means predictable results, whether in spinning, casting, or blending downstream.
We've partnered with R&D teams in coatings and resins over the years who need consistent reactivity and color clarity. The difference between fossil-sourced and biobased PDO can show up here—trace impurities and organics affect polymerization rates, branching, and thermal stability. Bio-based PDO’s tighter purity specs limit these variables, letting formulators run processes hotter, longer, or at higher throughput without yield drops. This reliability results from real maintenance and quality investments at the source, not simply downstream blending or purification steps.
Personal care formulators often stop by to talk through texture and solvency questions. PDO gives them strong solvency for actives and fragrances, while its humectant properties outperform alternatives like propylene glycol and glycerol on many metrics. End users note smoother sensory profiles—less stickiness, faster absorption, and less residual odor. The safety data profiles for bio-based PDO align with global regulatory demands. Our product holds key certifications for food-contact and cosmetic use, supported by direct toxicology studies and absence of impurities carried over from fossil refining.
Comparing Bio-PDO with Conventional Alternatives
There’s always a temptation to file PDO alongside common glycols and diols: ethylene glycol, propylene glycol, butanediol. We see the biggest differences not only in feedstock carbon, but in technical function and downstream performance. PDO’s polarity, boiling point, and chain flexibility provide value in engineered resins, biodegradable plastics, and high-performance coatings. In polyesters, PDO’s three-carbon backbone gives rise to polytrimethylene terephthalate—now widely adopted for textile uses. Polypropylene glycol or butylene glycol never meet the same performance targets in terms of dyeability, recovery, and tactile softness.
Cost sometimes comes up as a hurdle. The early days, sure, bio-based routes looked expensive on a per-ton basis. We watched that close. Fermentation scaling and refining process improvements have changed that reality. Plant yields rose, enzymes improved, and the gap with petroleum feedstocks is closing every year. For customers in regulated or consumer-facing industries, the cost comparison must also count brand value, compliance requirements, and potential for extended product life cycles. All these play into why so many major adopters of biobased chemistry switched to PDO—the math works at scale, and consumer preference is clear: plant-based ingredients win favor across sectors, whether in shoes, packaging, performance apparel, or skincare.
In terms of handling, bio-based PDO pronouncedly cuts worker exposure. The odor is faint, the spill risk is lower, and waste streams meet tougher regulatory targets more easily. Our safety teams trained hundreds of operators over the years: transitioning to biobased materials meant less need for personal protective equipment and fewer long-term compliance headaches. Wastewater treatment compatibility improved—labels printed for discharge standards in Europe and Asia reflect this. Less burden falls on environmental health and safety staff, which shows up in real savings for operators and plant owners.
Direct Environmental Benefits in Plain Terms
To those of us in production, measuring the actual environmental value matters. Bio-based PDO’s performance starts with renewable carbon intake, which means no more adding net fossil carbon to the atmosphere. Independent LCAs confirm greenhouse gas reductions in the 40-70% range compared to legacy PDO. Waste streams from our fermentation lines carry lower hazardous loads as well. Process water reuse and quality improvements drive down environmental remediation costs.
We also saw changes in the energy mix onsite. Fermentation allows switching to steam or electrical energy derived from renewables, where available. This moves the dial in energy audits and supports local goals to phase out intensive fossil fuel use. Our team invested in heat integration: fermentation operates at tolerable ranges for energy-efficient recovery, no need for deep hydrocracking or high-pressure reforming. The simple physical reality—lower pressure, moderate temperatures—makes these plants more adaptable as grids decarbonize.
A growing share of customers need certifications: USDA BioPreferred, REACH, or region-specific eco-labels. Our traceability records back these claims with transparent chain-of-custody tracking, not just paperwork. Downstream stakeholders—brand owners, recyclers, and regulatory agencies—prefer to audit real process data, not marketing brochures. We’re able to walk them through every stage and pull up proof at each step, which gives confidence when claims face tough external review.
Market Examples and End-Use Cases
Demand scenes play out broadly. In fibers, the move to plant-based synthetics reshaped major supply chains. Textile mills that used to rely on mostly fossil-based partners now regularly ask about batch scheduling for 100% biobased inputs. The switch to PDO-based polyesters expanded design options—easier dye uptake, improved resilience, and softer hand feel come up in market feedback. Brands selling sports apparel and footwear flag this in consumer-facing campaigns, tied directly to ingredient sourcing.
Rigid packaging and film developers now ask for bio-based certificates on every shipment. The growing regulatory push against single-use plastics in developed markets squares with supply from renewable monomers. Our downstream partners report improvements in tear resistance, processability, and print quality in packaging films made from PDO-based polyesters. The data shows improved recyclability as well; biobased polyesters can flow into existing stream systems without performance drop-off.
Personal care and cosmetics applications highlight the unique selling points of bio-PDO. Leaving out petroleum residuals means compatibility with clean beauty trends and consumer demand for short, natural ingredient lists. The ability to function as a humectant and carrier supports a wide range of products, from moisturizers and serums to deodorants and wipes. Formulators report texture improvements and extended shelf lives, both driven by PDO's chemical stability and purity.
Challenges Faced, Lessons Learned
No real manufacturer pretends it’s all smooth sailing. Sourcing enough renewable feedstock through variable harvests keeps us sharp. Weather, commodity cycles, and geopolitical events can affect availability. Long-term contracts with farmers and co-ops help, but we keep a close eye on storage and risk mitigation, holding back buffer stocks to avoid disruption in customer supply. Research into second-generation feedstocks—cellulosic and waste-based sugars—moves forward, aiming to further reduce arable land competition with food crops.
Fermentation-based chemistry has quirks. Substrate variability sometimes requires process tweaks. Strain maintenance, contamination risk, and upsets during warmer months make for busy monitoring. Our team documents every deviation, reviews results, and feeds improvements into the control plan. Continuous improvement is not an empty phrase in our facilities—changes go straight to the process engineers’ boards.
End-of-life for bio-based materials invites fresh scrutiny. Biodegradability, compostability, and recycling all come up in customer technical calls. We spend time mapping the fate of PDO-derived polyesters in commercial waste streams. Some degrade quickly in industrial composting, while home composting falls short. Our role doesn’t stop at the production gate; post-use impacts matter, and updates to recycling protocols get relayed to every downstream partner. Testing and innovation push forward: additives to improve breakdown, enzymes for faster recycling, and joint industry studies on microplastics.
The Future Role of Bio-based PDO—Manufacturer’s Take
Full decarbonization of chemicals demands more than just green energy. Sourcing raw materials from nature in a sustainable way gives the industry real opportunities to move beyond surface-level change. Electrical switching and process tweaks can only get so far—a genuine drop-in monomer opens up manufacturing reform in coatings, resins, packaging, apparel, and personal care. As upstream partners develop more integrated bio-refining, cross-linking with agriculture and waste management, the reach of renewable PDO will spread.
We receive more requests for joint development and pilot runs as new end uses open up. Biobased adhesives, coatings for electronics, automotive interior parts, and even specialty inks now feature in development pipelines. Each customer challenge pushes us to tighten quality, scale new catalyst systems, and share know-how. Our engineers talk directly to downstream formulators to tune process variables, catching off-spec results early and running trials that blend field experience with lab data. The learning flows both ways, as partners share application results and stories from the front line.
Local job growth and supply-chain resilience form unexpected but powerful side benefits. Shifting feedstocks away from distant oilfields means more contracts for local growers, transporters, and processors. Our investments in process upgrades and plant expansions create skilled employment, not just ag labor, but in technical, engineering, and logistics roles. This shifts economic benefit to the regions where bio-based PDO gets made, not just consumed.
Commitment Behind the Product
Bio-based PDO isn’t just shipped in bulk or toted out in drums. Every kilo reflects hours of training, years of R&D, and daily operational oversight. The operators who sign off on each load bank their own reputation on the quality and sustainability of each batch. We stand by clear documentation, open data, and responsive technical support. If a processor runs into a challenge—off-color, a strange odor, foaming, or a regulatory question—we bring in our technical leads, walk the line, and resolve it alongside our customers.
Certitude comes from knowing where the product comes from, how it was made, and what it contains. For us, PDO is not just another raw material; it’s the outcome of a long journey to move chemical manufacturing to a place where impact and innovation work together. If you are looking for a PDO that delivers on performance, sustainability, and reliability—coming from folks who get their hands dirty making it every day—we’re here to talk. The innovations ahead will build on what we do at the source, close to the field, and on the plant floor.
