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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 | 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. |
Applications of Ricinoleic Acid in Industrial ManufacturingAs 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 SynthesisIndustrial 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
Typical usage ratio
Downstream process integration
Final product types
2. Lubricant Base Fluid SynthesisRicinoleic 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
Typical usage ratio
Downstream process integration
Final product types
3. Surfactants and Emulsifiers for Textile and Leather ProcessingWithin 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
Typical usage ratio
Downstream process integration
Final product types
4. Plasticizer Production for Niche PolymersChemical 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
Typical usage ratio
Downstream process integration
Final product types
5. Defoamer Agent Manufacturing for Pulp & PaperPulp 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
Typical usage ratio
Downstream process integration
Final product types
6. Metalworking Fluid Additive SynthesisSpecialty 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
Typical usage ratio
Downstream process integration
Final product types
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Competitive Ricinoleic Acid prices that fit your budget—flexible terms and customized quotes for every order.
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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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.