Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing admin@sinochem-nanjing.com 3389378665@qq.com
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Ricinoleic Acid

    • Product Name Ricinoleic Acid
    • Alias octadec-9-enoic acid, 12-hydroxy-
    • Einecs 204-941-5
    • 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

    535955

    Cas Number 141-22-0
    Molecular Formula C18H34O3
    Molecular Weight 298.47 g/mol
    Appearance Colorless to pale yellow liquid
    Odor Mild fatty odor
    Boiling Point 313 °C
    Melting Point 5 °C
    Solubility In Water Insoluble
    Density 0.945 g/cm3
    Flash Point 225 °C
    Chemical Structure 12-hydroxy-9-cis-octadecenoic acid
    Refractive Index 1.477 (at 20°C)
    Acid Value 180-190 mg KOH/g

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

    Packing & Storage
    Packing Ricinoleic Acid is packaged in a 25 kg HDPE drum with a secure screw cap, labeled with hazard and handling information.
    Shipping Ricinoleic Acid should be shipped in tightly sealed containers made from compatible materials, typically polyethylene or glass. It must be stored in a cool, dry, and well-ventilated area, away from heat sources and oxidizing agents. Ensure the packaging is properly labeled and complies with relevant transportation regulations to prevent leaks or contamination.
    Storage Ricinoleic acid should be stored in a cool, dry, well-ventilated area, away from sources of heat, ignition, and direct sunlight. Keep the container tightly closed and clearly labeled. Store separately from strong oxidizing agents and acids to prevent hazardous reactions. Use corrosion-resistant containers and check for leaks regularly. Follow all relevant local and international storage regulations for chemicals.
    Application of Ricinoleic Acid

    Applications of Ricinoleic Acid in Industrial Manufacturing

    As a direct chemical manufacturer, we supply ricinoleic acid to leading industrial sectors that demand traceable, high-assurance raw materials for specialty processes and finished goods. Below are real downstream scenarios, with compliance, formulation, processing, and end product considerations outlined by application area.

    1. Polyamide 11 (PA11) Monomer Synthesis

    Industrial production of bio-based polyamide 11 uses ricinoleic acid as a primary feedstock, subject to strict material traceability. First, transesterification yields methyl ricinoleate; subsequent methanolysis and pyrolysis steps produce 11-aminoundecanoic acid monomer. Producers adjust process variables based on acid value and moisture levels in the input acid. The monomer is then polymerized via condensation steps for engineering plastics. This route supports the automotive, electronics, and consumer goods industries targeting lower carbon footprint high-performance polymer grades.

    Industry compliance standards

    • ISO 9001/14001 Quality & Environmental Management Systems
    • EU REACH Regulation (EC) No 1907/2006 for chemical registration
    • RoHS 2011/65/EU for final electronics-grade polymers
    • ASTM D4066 for PA11 polymer properties

    Typical usage ratio

    • 100% as mono-feedstock for 11-aminoundecanoic acid route
    • Minor ratio adjustments may compensate crude acid moisture (max 2% H2O spec)
    • Excess not used in side reactions due to monomer stoichiometry

    Downstream process integration

    • Introduced at initial feed tank
    • Metered for transesterification with methanol over base catalysts
    • Subjected to vacuum pyrolysis for aminoundecanoic acid generation
    • Integrated upstream of polycondensation unit

    Final product types

    • Polyamide 11 engineering granules
    • High-pressure tubing for automotive fuel lines
    • Flexible electrical cable sheathing
    • 3D printing filament for specialized parts

    2. Lubricant Base Fluid Synthesis

    Ricinoleic acid functions as the backbone for synthetic esters and lubricant base oils developed for high- and low-temperature performance, especially in aviation, refrigeration, and industrial gear formulations. Chemical esterification blends the fatty acid with diols or monoalcohols, resulting in products with engineered viscosity and polarity. Producers adhere to global lubricant purity and biodegradability criteria, sourcing only refined grades with color and acidity within ASTM and OEM-specified maxima.

    Industry compliance standards

    • ISO 6743 family for lubricant classification
    • SAE J1899 for base oil performance testing
    • OECD 301 series for biodegradability
    • REACH compliance for all chemical additives

    Typical usage ratio

    • 70-95% in synthetic ester base stock formulations
    • Adjustment based on kinematic viscosity and pour point targets
    • Blended with 5-30% co-monomer or viscosity modifier as required

    Downstream process integration

    • Continuous esterification reactors for diol or alcohol reactions
    • Vacuum stripping to remove water byproduct
    • Integrated finishing with anti-oxidants at blending stage
    • Final QC testing for acid value and color number

    Final product types

    • Polyol ester lubricants for refrigeration compressors
    • Trimethylolpropane-based gear oil esters
    • Hydraulic fluid base stocks
    • Bio-based engine oil additives

    3. Surfactants and Emulsifiers for Textile and Leather Processing

    Within textile and leather processing, ricinoleic acid enters as a functional raw material for nonionic surfactant and emulsifier synthesis. Ethoxylation and sulfonation modify the castor-derived acid, yielding products suited for stable emulsions in scouring, dyeing, and fatliquoring applications. Operators specify quality grades free from water-insoluble matter and maintain fixed saponification indices. Control of residual monomers is critical per downstream effluent and worker health regulations.

    Industry compliance standards

    • OEKO-TEX Standard 100 for textile chemical inputs
    • ZDhS Restricted Substances List (RSL) for leather chemicals
    • REACH Annex XVII for nonylphenol ethoxylate content
    • ISO 14001 for effluent quality management

    Typical usage ratio

    • 25-45% in emulsifier formulation (with 55-75% co-reactants or carriers)
    • Adjusted based on hydrophilic-lipophilic balance (HLB) requirements
    • Additional modifiers dosed per end-use textile substrate

    Downstream process integration

    • Charged in batch or continuous surfactant reactors
    • Participates in ethoxylation/sulfonation at controlled temperature and pH
    • Integrated with final blending for pigment-dispersing agents
    • QC sampling for free acid and cloud point

    Final product types

    • Textile scouring agents
    • Leather fatliquor emulsions
    • Dye bath dispersants
    • Finishing agents for nonwoven textiles

    4. Plasticizer Production for Niche Polymers

    Chemical companies utilize ricinoleic acid to produce specialty plasticizers for flexible polymers, including cellulose acetate, EVA, and certain biodegradable plastics. Esterification with polyalcohols such as glycerol produces esters that impart both migration resistance and low-temperature flexibility. Since non-phthalate plasticizer formulations gain regulatory preference, careful control over odor, color, and heavy metal contamination during production ensures broad compliance for sensitive end-uses such as toys and flexible packaging.

    Industry compliance standards

    • EU Regulation (EC) No 10/2011 for food-contact plastics
    • EN 71-3 Safety of toys (migration of certain elements)
    • FDA 21 CFR 177.1350 for polymer additives
    • ISO 22000 for food safety in packaging

    Typical usage ratio

    • 10-35% in flexible polymer recipes
    • Tunability based on final film thickness and required plasticity
    • Use balance with main polymer resin and co-plasticizer

    Downstream process integration

    • Blended in molten polymer before extrusion
    • Esterification reactions run in batch or continuous mode under inert atmosphere
    • In-line degassing and filtration prior to downstream compounding
    • Monitored for color and acid value specs pre-shipment

    Final product types

    • Flexible cellulose acetate films
    • Children’s soft toys and teethers
    • Biodegradable sealant films
    • EVA gaskets for food-grade closure systems

    5. Defoamer Agent Manufacturing for Pulp & Paper

    Pulp and paper mills apply ricinoleic acid derivatives as base components in defoamer formulations that regulate surfactant-induced foam during stock preparation, washing, and white water recovery. Producers react fatty acid esters with nonionic surfactants or silica for efficient bubble collapse under alkaline and high-shear conditions. Controlled feedstock color and insoluble-matter content are monitored to prevent deposition or sheet defects in coated papers and boards. Downstream users require documented absence of bioaccumulative toxicants and adhesive residues.

    Industry compliance standards

    • US FDA 21 CFR 176.210 for paper defoamers in food packaging
    • EU BfR XXXVI Recommendations for paper and board for food contact
    • ISO 9001 for process and QC documentation
    • TAPPI T 624 for paper chemical purity testing

    Typical usage ratio

    • 5-15% ricinoleic-derived ester in total antifoam formulation
    • Adjustments based on pulp furnish (hardwood vs softwood) and process alkalinity
    • Supplemented by mineral oil or polydimethylsiloxane as balance

    Downstream process integration

    • Continuous addition to pulping and white water recovery reactors
    • In-line with dosing pumps calibrated for stock rates
    • Incorporated with process water management systems
    • QC testing for residual foam and sheet cleanliness

    Final product types

    • Food-contact and specialty paperboard
    • Coated sack kraft
    • White-top linerboard
    • Pharmaceutical tissue grades

    6. Metalworking Fluid Additive Synthesis

    Specialty metalworking fluid manufacturers blend ricinoleic acid as an emulsifying or lubricity-imparting agent in soluble oil and semi-synthetic formulations. The acid’s hydroxyl content improves boundary lubrication and maintains emulsion stability under pressure and thermal cycling. Strict impurity thresholds exist for sulfur, water, and volatile acids, while suppliers document batch origin and certificate of analysis for OEM acceptance. Downstream blending lines introduce the acid before pH and anti-corrosion adjustment additions.

    Industry compliance standards

    • ASTM E686 Test Method for Coefficient of Friction
    • ISO 6743-13:2017 for metalworking fluid classification
    • TRGS 611 for biocide and microbial resistance
    • REACH SVHC inventory for chronic toxicity screening

    Typical usage ratio

    • 3-10% in neat and water-dilutable metalworking formulations
    • Adjusted for target lubricity and foam control
    • Balance obtained from mineral or synthetic base oils

    Downstream process integration

    • Dosed in heated blending tanks prior to oil and aqueous phase combination
    • Addition preceding biocide and corrosion inhibitor dosing
    • In-line emulsification and droplet size monitoring
    • Final filtration for removal of particulates

    Final product types

    • Soluble cutting oils
    • Chemical milling lubricants
    • Roll forming coolant emulsions
    • Aluminum drawing and stamping fluids
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    Certification & Compliance
    More Introduction

    Ricinoleic Acid: Sourcing Reliable Quality Direct from the Manufacturer

    At our plant, we have spent years producing ricinoleic acid at commercial scale. This fatty acid has earned its reputation through both its raw strength and gentle adaptability. Unlike many commodity chemicals, quality truly matters for ricinoleic acid — downstream performance depends on purity, consistency, and well-understood specifications. Researchers, industrial partners, and technical buyers come to us not just for tonnage but for a fully controlled process, where batch to batch, the output matches the rigorous standards set by large-scale personal care, lubricants, and plastics manufacturers. Here’s what we’ve learned about making and supplying ricinoleic acid that adds genuine value in tough applications.

    Reliable Chemistry from a Renewable Source

    We manufacture ricinoleic acid directly from castor beans using a carefully managed hydrolysis and distillation process. Our batch records go back decades; any technical manager who has toured our facility can see every step firsthand. Ricinoleic acid stands out from other fatty acids because of the hydroxyl group at the 12th carbon, plus the single unsaturation site. This subtle difference shifts its whole behavior — whether as a chemical intermediate or in finished applications. By consistently controlling hydrolysis and distillation, we bring the hydroxyl content up to the expected spec every time. High-purity output supports further chemical conversion for estolides, plasticizers, and synthetic lubricants.

    Product Specifications With No Room for Guesswork

    Ricinoleic acid’s performance depends on narrow parameters. With a molecular weight of about 298 g/mol and a density just under 0.94 g/cm³, our typical production targets 85-90% purity, minimum, with specific iodine and hydroxyl values monitored throughout production. Moisture, color, and trace metals get measured on every batch. We avoid potassium and other metals in the extraction phase because downstream esterification and polymerization don’t tolerate these contaminants. If a partner comes to us with a requirement for ultra-low color or a certain titer, our engineers can build these controls into a custom production run. As a manufacturer, we also advise partners realistically: high-purity varieties drive up cost, but bring undisputed process reliability in demanding applications like pharmaceutical-grade surfactants, specialty lubricants, and engineered elastomers.

    Manufacturing Ricinoleic Acid at Scale Requires More Than the Usual Controls

    Castor oil extraction brings in natural variability due to climate, bean genetics, and local storage practices. Every season, we adjust pretreatment—neutralization, degumming, filtration—based on the castor beans harvested that year. Through direct sourcing and local partnerships with castor growers, we manage the input quality months before actual acid production starts. We test incoming shipments for free fatty acid content, peroxide value, and moisture before the raw oil ever enters our main circuit. As a dedicated manufacturer, not a broker or trader, we see firsthand how small slips in front-end quality can disrupt everything downstream. To keep the final ricinoleic acid within spec, we invest early and train local procurement teams ourselves.

    Why Ricinoleic Acid Works Differently from Other Fatty Acids

    Even close chemical relatives diverge sharply in use cases due to ricinoleic acid’s molecular structure. The hydroxyl group, unique among common fatty acids, rewrites how it reacts—impacting viscosity, polarity, and chemical reactivity. Compared to oleic or linoleic acid, ricinoleic acid thickens blends, modulates surface tension, and prepares cleanly for further transformations into esters or polyols. Its melting point falls lower, opening up easier processing in colder climates. Where stearic acid blocks up pipes, and lauric acid lacks body, ricinoleic acid pours with a honey-like flow that processors can dial in with heat. Polymeric resins and lubricants compare favorably for long-term stability and lower volatility when using our consistent product output. These real-world properties matter for lab scale innovation and full industrial scaleup alike.

    Applications Grown by Technical Demand, Not Commodity Thinking

    Most ricinoleic acid leaves our site headed for transformation. Polymer and plasticizer manufacturers want the hydroxyl functionality for specialty polyester and polyurethane – their formulations call for repeatable, high-performance chemical backbones. Synthetic lubricant formulators count on its thermal stability, keeping machinery running smooth under strain. Surfactant producers demand colorless, odor-free grades so final consumer products hit exacting quality marks. Rubber and elastomer plants appreciate the consistent viscosity, which helps dial in plasticity and resilience for tires, gaskets, and hoses. In pharmaceuticals, traceability and ultra-low contaminant levels matter more than price alone. Our role as manufacturer allows us to document, certify, and if needed, tweak any aspect of the process – ensuring the acid always matches what customers need at the molecular level.

    Partnering for Industry-Wide Solutions

    We firmly believe real industry progress starts by unlocking performance and cost improvements together. Technical teams routinely call on our plant managers for insight. Years ago, a major lubricant producer grappled with variance in ester performance after switching from brokered to directly purchased caustic. On-site troubleshooting uncovered minor variances in the hydroxyl value, traced to reaction time drift in their saponification step. Using our laboratory, we ran parallel samples, customized a distillation tweak, and together brought the final lubricant back within spec. Our team’s readiness to share process knowledge—built from seasonal and scale challenges—sets the foundation for real improvement across the value chain.

    Understanding the Key Differences Versus Castor Oil and Other Fatty Acids

    People sometimes ask if they can substitute ricinoleic acid directly with cheaper, more available acids like oleic, linoleic, or even basic castor oil. We’ve seen the trade-offs in real applications. Pure ricinoleic acid drives specific chemical reactions impossible to achieve using the triglyceride form (raw castor oil). Try to saponify or polymerize castor oil directly, and impurities or unwanted byproducts will usually turn up, throwing off final quality. By isolating ricinoleic acid—removing dihydroxystearic, linoleic, and palmitic acids, along with objectionable non-fatty acid residues—we set the stage for targeted, high-yield reactions. Even those who purchase straight castor oil for basic uses find they get far more consistent results using the refined acid for high-performance tasks.

    Traceability, Safety, and Sustainable Sourcing at the Core

    Contaminants, mislabeling, or incomplete documentation still show up in the global procurement system. When bulk product moves through traders, certificates sometimes get lost, recycled, or altered. Manufacturing under our own name and facilities, we document every batch front to back – with clear lot numbers, supply chain records, and a decades-tested, transparent process. End-users in sensitive applications (like food-grade, cosmetics, or pharma uses) often request detailed, on-record supply histories. Our in-house quality teams handle these requests directly, not through third-party paperwork. We also trace our castor beans back to field-level batches and make sure no children or forced labor taints the supply chain. Sustainable sourcing comes from real relationships – usually direct contracts with established rural partners and zero-tolerance farm auditing procedures.

    Meeting Evolving Regulatory and Market Demands

    Industry standards for ricinoleic acid have shifted over the years. Technical requirements keep tightening, especially as customers prepare for new global regulatory frameworks on food, cosmetics, pharmaceuticals, and industrial intermediates. Each time REACH or EPA standards shift, our team evaluates whether current processes can hit any new purity or labeling threshold. For instance, recent updates nudged peroxide value specifications downward for cosmetic-grade material entering certain markets. We know that pre-LC/MS testing, record archiving, and full ingredient traceability can’t stay optional. Our plant takes part in multi-year audits with major consumer brands, ensuring all processes meet the highest E-E-A-T standards, from operator training to environmental reporting.

    Ricinoleic Acid and the Push for Greener Chemistry

    No serious player in the chemical industry ignores the drive for renewable sourcing and greener, less toxic chemistries. Ricinoleic acid stands out as a naturally sourced, biodegradable material. Unlike some petroleum-derived fatty acids, it stacks up well in both cradle-to-gate and full-life-cycle assessments. Our process uses steam-powered energy recovery, and waste streams go for further recovery rather than landfill. R&D looks to shave down even more water and energy use, as regulators and customers alike keep raising the bar. As the material basis for green polyurethanes, bioplastics, and high-efficiency lubricants, ricinoleic acid opens doors for innovators pushing the boundaries on renewable materials. Having run side-by-side trials, we have seen biobased products outperform synthetics in real factory equipment and end-consumer settings.

    Customer-Driven Innovation and Supported Application Expansion

    Our role as primary manufacturer lets our partners experiment, scale, and retool at the chemistry level. We routinely collaborate with technical teams running pilot lines—whether that means supplying kilogram samples for lab scaleup, or pivoting a process mid-run to address a newly surfaced quality issue. In recent years, niche markets for biodegradable carrier oils, high-purity emulsifiers, and medical-grade solvents have turned to ricinoleic acid-based blends. To support these shifts, we have built out on-site labs and technical service units that mirror the needs of specialty chemical customers. Product adoption increases fastest when reliable supply, real technical support, and custom production capabilities line up. Direct contact shortens the feedback loop for custom modifications, allowing researchers and process engineers to focus on end-use validation rather than source debugging.

    Economic and Logistical Considerations in Large-Volume Supply

    Managing a robust supply chain for ricinoleic acid takes more than a warehouse and a few trucks. You face import clearances, seasonal swings in castor bean maturity, and growing regulatory paperwork. Unexpected shipping delays or customs compliance missteps strain operations, especially when end-users must stay in continuous supply. Our company tackles these problems through flexible routings, well-established shipping partners, and multi-location warehousing options. By owning every production step, we adapt to real-world supply hiccups by shifting output across multiple plants if needed. With volume contracts, partners benefit from more price stability and less risk of spot-market shortages. We keep stock levels and delivery options aligned with customer forecasts, answering a key request from major users in the lubricants, polymers, and fragrance sectors.

    Technical Support and Knowledge Sharing: Our Ongoing Investment

    Few chemical manufacturers want to open up their process details openly, but as ricinoleic acid applications keep expanding, information has become a currency of trust. Our technical service crew—some with three decades spent on the shop floor—guide customers through new formulation and troubleshooting. Common questions cover reaction times during esterification, handling in cold conditions, effects of storage on color and odor stability, plus impact of trace contaminants during polymerization. We publish select technical bulletins and take part in industry working groups so the best data circulates across markets. As a manufacturer, our value to partners grows not just from making molecules but from solving supply, quality, and application problems as they emerge.

    Looking Ahead: Ricinoleic Acid’s Evolving Role in Industry

    Far from remaining a bulk commodity, ricinoleic acid continues to support the shift toward advanced, sustainable materials. Industries turn to it as a greener, more versatile building block, especially as mineral oil and palm-based intermediates draw closer public scrutiny. Our expectation is that future years will bring tighter technical demands, new application classes, and greater premium on fully traceable, uncontaminated production. As a direct manufacturer, we welcome these shifts, investing in new distillation and analytical infrastructure to keep pace with both mature and emerging customers. Every technical development we make starts with what we see from global end users—from demanding lab trials to shift supervisors calling out a reliability tweak that makes a difference over years, not just quarters.

    In Summary: Why Direct Manufacturing Matters for Ricinoleic Acid

    Our shared experience comes through every drum and container we ship. Manufacturing ricinoleic acid demands full-cycle control: from castor field to hydrolysis, to purification, to final drum. We respond to process variability, batch-level demands, and changing regulation without cutting corners or hiding process details from partners. Technical buyers, R&D teams, and volume users experience tangible project gains—lower process downtime, better control over chemical yields, improved final product quality—by choosing direct, transparent supply from a plant that has invested in its own future alongside the whole industry’s. Ricinoleic acid deserves this level of attention and care, and as both technology and market expectations rise, only continuous improvement will keep our product at the forefront of modern chemistry.