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Description
Castor Oil (Pure & Natural)
Castor Oil (CAS: 8001-79-4) is a vegetable oil obtained by cold-pressing or solvent extraction from the seeds of the Ricinus communis plant. Renowned for its unique chemical structure—comprising approximately 85% – 90% ricinoleic acid—this thick, pale-yellow liquid is a highly versatile raw material. It serves as a cornerstone ingredient across cosmetics, personal care, pharmaceutical formulations, and high-performance industrial applications.
Commercially, Castor Oil and its derivatives are marketed under various industrial trade names, including Castorex®, Crystal® O (USP grade), Ricinus Oil, and derivative lines like Cremophor® EL / Kolliphor® EL (polyoxyl castor oil emulsifiers) and Cutina® HR (hydrogenated castor oil).
Key Performance Features & Benefits
Intense Hydration & Barrier Protection: Castor Oil Acts as an occlusive humectant, locking in moisture and creating a protective barrier on skin and hair to prevent transepidermal water loss.
Hair & Scalp Nourishment: Rich in fatty acids and vitamin E, it is widely used to condition dry hair, soothe irritated scalps, and strengthen eyelashes, eyebrows, and beard hair.
High Viscosity & Gloss: Offers natural high viscosity and film-forming properties, imparting rich texture and long-lasting shine in cosmetic formulations.
Versatile Industrial Intermediate: Its hydroxyl functional group makes it ideal for chemical reactions, serving as a renewable polyol for polyurethane synthesis, lubricants, paints, and soaps.
Technical Specifications & Product Properties
| Property | Specification / Typical Value |
| Botanical Name | Ricinus communis |
| Common Trade Names | Castorex®, Crystal® O, Ricinus Oil, Kolliphor® EL |
| CAS Number | 8001-79-4 |
| Appearance | Clear, pale yellow to viscous amber liquid |
| Odor | Faint, characteristic vegetable oil odor |
| Ricinoleic Acid Content | 85.% – 92.0% |
| Specific Gravity | 0.957 – 0.961 @25°C |
| Solubility | Insoluble in water; soluble in ethanol and organic solvents |
Primary Applications
Cosmetics & Personal Care: Castor Oil Formulated into lipsticks, lip glosses, hair growth serums, moisturizing creams, nail oils, and natural soaps (providing rich, stable lather).
Pharmaceuticals: Functions as an active laxative agent (under regulatory guidelines) and as a solubilizing vehicle/emulsifier for oral and injectable drug formulations.
Industrial & Coatings: Used in the manufacture of biodiesel, bio-based polyurethanes, high-temperature lubricants, hydraulic fluids, paints, and synthetic resins.
More Amazing uses can be found here
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