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Commercial Fulfillment Snapshot
Buy 100% USP Grade Pure Castor Oil with faster decisions and fewer back-and-forth emails.
Ships from Taylor, Texas. In-stock orders placed before 1:00 PM CT (Mon-Thu) and before 12:00 PM CT (Fri) typically ship same business day. Order online 24/7.
Who Buys This
- Pharmaceutical manufacturers for laxatives
- Cosmetic formulators for emollients
- Industrial lubricant suppliers
- Plastic manufacturers for plasticizers
- Chemical processors for surfactants
Purity / Grade Guide
- USP Grade pharmaceutical quality
- 99-100.5% assay purity
- Low heavy metals content
- Meets stringent USP standards
Pack Sizes
- 1 Quart: lab & small jobs
- 1 Gallon: shop & maintenance
- 5 Gallon: production & regular use
- 15 Gallon: mid-volume operations
- 55 Gallon: bulk drum
- 275 Gallon: high-volume tote
- 330 Gallon: max-volume tote
SDS / COA / TDS
- USP-NF monograph compliant
- Certificate of Analysis included
- Safety Data Sheet provided
- Non-regulated ground shipment
Small Packs: UPS Ground nationwide for pints, quarts, and gallons.
LTL / FTL: ABF, SEFL, Saia, XPO, and partner carriers for pails, drums, totes, and full truckloads.
Support: Email or call for freight options, hazardous-material routing, and lead-time confirmation.
Product Overview
100% USP Grade Pure Castor Oil is a highly refined triglyceride oil derived from the seeds of Ricinus communis. This USP-grade product is refined to meet stringent purity specifications, ensuring consistent performance in pharmaceutical manufacturing, cosmetic formulations, and demanding industrial applications. Distinguished by its high viscosity and unique fatty acid profile—dominated by ricinoleic acid—this oil provides exceptional lubricity, rheological control, and emollient properties.
The material appears as a clear to pale yellow liquid with a mild odor. It is strictly controlled for batch-to-batch consistency, verified by a Certificate of Analysis (COA) aligned with USP-NF Monograph requirements. Its insolubility in water and solubility in alcohols make it a critical component in urethane coatings, lubricant formulations, and surfactant systems. Alliance Chemical maintains this product under controlled storage conditions to preserve stability for both laboratory development and full-scale production.
Key Properties
- Appearance: Clear to pale yellow liquid
- CAS Number: 8001-79-4
- Chemical Formula: C18H34O2 (Ricinoleic Acid Component)
- Grade: USP / Technical
- Specific Gravity: 0.96–0.97
- Solubility: Soluble in alcohol; Insoluble in water
- Viscosity: High (~900–1000 cP at 25°C)
- Acidity: Low acid value for formulation stability
- Trace Metals: Controlled to USP limits (Pb, Fe, Zn, etc.)
- Odor: Mild, characteristic
Common Applications
- Pharmaceutical Manufacturing: Used as a high-purity excipient and carrier in pharmaceutical formulations, meeting pharmacopeial standards for purity and trace element limits.
- Cosmetic Formulations: Functions as a primary emollient and moisturizing agent in soaps, lotions, and hair care products, adding viscosity and barrier protection.
- Industrial Lubrication: utilized in high-performance bio-based lubricants and greases requiring high thermal stability and oxidative resistance.
- Coatings & Polyurethanes: Acts as a polyol source for polyurethane coatings, adhesives, and sealants (CASE applications), improving flexibility and hardness.
- Chemical Synthesis: Serves as a raw material for the production of sebacic acid, surfactants, and plasticizers.
Safety & Handling
Store in a cool, dry area away from direct sunlight to maintain chemical stability. Use HDPE, stainless steel, or glass containers to prevent contamination. While Castor Oil is generally non-hazardous for transport, standard industrial hygiene practices should be observed. Wear appropriate Personal Protective Equipment (PPE) such as gloves and eye protection during bulk handling to prevent slips or irritation.
This product is classified as non-regulated for transport (Standard Shipping). Refer to the Safety Data Sheet (SDS) for detailed safety, first aid, and disposal information prior to use.
Benefits
USP Grade Purity – Meets strict monograph requirements for use in regulated pharmaceutical and cosmetic applications.
High Viscosity & Lubricity – Excellent natural lubricant and carrier oil for mechanical and chemical processing.
Versatile Compatibility – Soluble in alcohols and compatible with a wide range of polar resins and polymers.
Related Products
| Property | Value |
|---|---|
| Molecular Weight | 282.47 g/mol |
| Formula | C18H34O2 |
| Assay | 100% |
| Flash Point | 246 |
| Solubility | Organic solvent soluble, water insoluble |
| Appearance | Pale yellow viscous liquid, translucent smooth |
| Melting Point | -18 °C |
| Boiling Point | 313 °C |
Frequently Asked Questions About 100% USP Grade Pure Castor Oil
What is 100% USP Grade Pure Castor Oil and what is its chemical formula?
100% USP Grade Pure Castor Oil is a chemical compound with the molecular formula C18H34O2, registered under CAS Number 8001-79-4 by the Chemical Abstracts Service (PubChem), with a molecular weight of 282.47 g/mol. Alliance Chemical supplies 100% USP Grade Pure Castor Oil for laboratory, industrial, and commercial applications.
What are the physical properties of 100% USP Grade Pure Castor Oil?
According to the NIOSH Pocket Guide to Chemical Hazards, 100% USP Grade Pure Castor Oil has a pale yellow viscous liquid, translucent smooth appearance. It has a melting point of -18°C, a boiling point of 313°C, a flash point of 246. Solubility: Organic solvent soluble, water insoluble.
What grade and purity of 100% USP Grade Pure Castor Oil does Alliance Chemical offer?
Alliance Chemical offers 100% USP Grade Pure Castor Oil with a purity assay of 100%. Every lot ships with a Certificate of Analysis (COA) and Safety Data Sheet (SDS) prepared in accordance with OSHA Hazard Communication Standard 29 CFR 1910.1200 and GHS Revision 7. Download SDS.
What are common industrial applications of 100% USP Grade Pure Castor Oil?
100% USP Grade Pure Castor Oil has applications in laboratory research, manufacturing, and industrial processing.Alliance Chemical provides the documentation and quality certifications required for use in regulated environments.
What PPE is required when handling 100% USP Grade Pure Castor Oil?
OSHA-mandated PPE per 29 CFR 1910.132-138:Nitrile gloves (8+ mil), safety goggles, flame-resistant clothing, grounded footwear, closed-toe chemical-resistant footwear. Respiratory protection (organic vapor cartridge) required in areas exceeding PEL/TLV per 29 CFR 1910.134. Emergency eyewash station and safety shower must be accessible within 10 seconds per ANSI Z358.1. Consult the SDS available from Alliance Chemical for complete PPE requirements.
What are the storage requirements for 100% USP Grade Pure Castor Oil?
Store perOSHA 29 CFR 1910.106: Approved flammable storage cabinet, maximum 60 gallons per cabinet, grounding/bonding required. Temperature range:15-25°C. Segregate from:oxidizers, ignition sources. Maximum storage:2-3 years unopened.
What is the emergency spill procedure for 100% USP Grade Pure Castor Oil?
Emergency response per EPA SPCC (40 CFR 112) and OSHA 29 CFR 1910.120: (1) Alert personnel, evacuate area to 100 feet. (2) Eliminate ignition sources if flammable. (3) Don PPE per SDS Section 8. (4) Stop leak if safe; use emergency shutoffs. (5) Contain with non-combustible absorbent materials, dike with sand/earth. (6)Absorb with vermiculite or commercial spill kits. (7) Collect in DOT-approved containers, label as hazardous waste. Check 40 CFR 302.4 for Reportable Quantity. Emergency: Chemtel 1-800-255-3924 (24/7). Non-emergency: Alliance Chemical 512-365-6838.
What is the DOT shipping classification for 100% USP Grade Pure Castor Oil?
DOT Classification per 49 CFR 172.101:UN1993 (Flammable Liquid, N.O.S.), Hazard Class3 (Flammable), Packing GroupII/III. Requires: Hazmat shipping papers (49 CFR 172.200), UN specification packaging (49 CFR 173), hazmat labels (172.400). Alliance Chemical ships all orders in DOT-compliant packaging with proper documentation.
How must 100% USP Grade Pure Castor Oil waste be disposed?
Disposal per RCRA (40 CFR 261-265):Characteristic waste D001 (Ignitable, flash point <60°C). Generator requirements: EPA ID number required if >100 kg/month (40 CFR 262.12). Use EPA-permitted Treatment, Storage, Disposal Facility (TSDF). Never discharge to sewer without POTW written approval (40 CFR 403). Container disposal: Triple rinse (40 CFR 261.7), offer for reconditioning/recycling. State regulations may be more stringent — check with your local environmental agency. Consult the Alliance Chemical SDS for product-specific disposal guidance.
Does Alliance Chemical provide an SDS and COA for 100% USP Grade Pure Castor Oil?
Yes. Alliance Chemical provides a Safety Data Sheet (SDS) and Certificate of Analysis (COA) for every lot of 100% USP Grade Pure Castor Oil. The SDS is prepared in accordance with OSHA Hazard Communication Standard 29 CFR 1910.1200 and the Globally Harmonized System (GHS) Revision 7, covering all 16 required sections including hazard identification, first aid measures, firefighting measures, handling and storage, exposure controls, and regulatory information. The SDS is available for download directly from this product page. COAs are available upon request by contacting Alliance Chemical at 512-365-6838.
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