Product Overview
100% Pure Castor Oil (CAS 8001-79-4) is a Technical grade vegetable oil pressed from the seeds of Ricinus communis, offered at full strength with no dilution or carrier. Its defining trait is an unusually high ricinoleic acid content, which gives the oil its heavy viscosity and its value as a raw material — as an industrial lubricant base, a plasticizer, a polyol feedstock for polyurethanes and coatings, and a feedstock for biodiesel. This listing is built for industrial buyers: formulators, machine shops, plastics compounders, and processors who purchase castor oil by the gallon, drum, or tote rather than the bottle. Pack sizes run from 1 quart for bench evaluation up to 330 gallon totes for production, all offered to order from our Taylor, Texas operation.
Why This Concentration
At 100% concentration there is nothing between you and the oil — no solvent, no blend, no adjustment needed before it enters your process. What you are actually choosing on this page is the grade. The Technical designation is the workhorse tier: buyers specify it for lubricant compounding, plasticizer work, polyurethane and coatings feedstock, and biodiesel trials, where the purchasing requirement is consistent industrial material rather than a pharmacopeia-style paper trail. A grade label on its own does not establish a monograph, assay, or certification, so match the grade to what your quality system requires. If your procurement documents call for reagent-style sourcing, order the 100% Pure Castor Oil ACS Grade instead. If your formulation work sits in personal-care or pharmaceutical excipient territory where buyers request the USP designation, start with the 100% USP Grade Pure Castor Oil. Same molecule, different paperwork expectations — pick the one your spec sheet names.
Chemical Profile
This product is identified by CAS number 8001-79-4 and sold under the synonyms Ricinus Communis Oil and Castor Seed Oil. As a natural triglyceride oil rather than a single defined molecule, it carries no single formula or molecular weight. In practice it handles as a viscous vegetable oil — noticeably heavier-bodied than most seed oils, which is exactly why lubricant and plasticizer formulators reach for it. Lot-specific measured values are reported on the certificate of analysis that accompanies each order rather than baked into this page, so the numbers you qualify against are the numbers for the material you actually receive.
Industrial Applications
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Lubricants: the oil's high viscosity and film strength make it a long-standing base stock and additive in industrial lubricant formulations for machinery and equipment.
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Polyurethanes and coatings: castor oil is a natural polyol; its hydroxyl-bearing ricinoleic backbone reacts into polyurethane systems and alkyd-type coatings as a bio-based feedstock.
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Plasticizers: compounders use castor oil and its derivatives to add flexibility in plastics production; run compatibility tests against your target polymer before scaling.
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Cosmetic formulation: the oil functions as an emollient ingredient in skin and hair care manufacturing. Formulators working to pharmacopeia-driven specs typically source the USP grade for that work.
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Biodiesel: the fatty acid profile makes castor oil a workable transesterification feedstock for biodiesel producers, from bench trials to pilot batches.
In each case the oil is a process input — a base, a reactant, or a feedstock — and your own qualification determines fitness for the finished product.
Handling & Storage
This product is not classified as hazardous under GHS based on available data (per the product's GHS classification), and no signal word applies. That makes it one of the easier materials in an industrial storeroom, but standard practice still holds: wear gloves and goggles when transferring, keep containers closed, and work with adequate ventilation. Store cool and dry, out of direct sunlight, in HDPE or glass containers, and keep the oil away from strong oxidizing agents and acids. Like any vegetable oil, it stores best sealed — limit air exposure to protect shelf stability. Read the SDS before first use; it travels with every order.
Hazmat & Shipping
This listing carries no assigned UN number, hazard class, subsidiary hazard, packing group, or proper shipping name in our transport data, consistent with its status as a material not classified as hazardous under GHS (per the product's GHS classification). Our team packs it under the same procedures we apply across a warehouse that ships regulated hazmat daily: sealed, upright, and cushioned, from quarts through 55 gallon drums and 275–330 gallon totes. Transport classification describes the material only — carrier services, routing, and any receiver obligations are set by your carrier and jurisdiction.
Documentation
A Safety Data Sheet ships with every order and is available in English, Spanish, French, and Japanese — useful when your EHS binder or a multilingual crew needs more than the English sheet. A Technical Data Sheet is available for formulation and engineering review, and every order includes a lot-specific Certificate of Analysis so your incoming QC can verify the exact lot you received rather than a typical range.
Why Buy from Alliance Chemical
You can qualify this castor oil at the quart and scale the same product to a 330 gallon tote without changing suppliers — with an SDS in four languages and a lot-specific COA on every order. Alliance Chemical has operated as an independent chemical distributor since 1998, and more than 50,000 customers have bought from our Taylor, Texas warehouse. Every listing's shipping and handling guidance is reviewed by Andre Taki, DOT Hazmat Specialist, so the packing and transport information on this page reflects how the material actually leaves our dock.
