Shanghai Dingwujin Chemical Co., Ltd. is a reliable supplier of castor oil in China. We cooperate with qualified Chinese factories and focus on chemical distribution to Central Europe, Eastern Europe and Ukraine. We welcome inquiries for wholesale and custom-spec castor oil manufactured in China.
Castor Oil
Introduction
Characteristics
|
Molar Weight |
933.45g/mol |
|
Melting Point |
-12°C |
|
Boiling Point |
313 °C |
|
Flash Point |
230.0°C |
|
Density |
0.959 g/cm3 |
|
Forms |
Liquid, Viscous, Yellow |
Product Grades
Pharmaceutical Grade
Cold-pressed (≤50°C), deep-refined. Acid ≤2.0 mgKOH/g. Moisture ≤0.5%. Heavy metals & microbes strictly limited. Uses: pharmaceuticals, injection excipients, high-end cosmetics.
Industrial Grade
Industrial – Class I: Purity ≥99.5%. Acid ≤2.0. Moisture & volatiles ≤0.10%. Impurities ≤0.05%. Colour: light (Lovibond red ≤1.5). Transparency: good. Uses: high-grade lubricants, polyurethanes, coatings, food auxiliaries.
Industrial – Class II: Acid ≤4.0. Moisture & volatiles ≤0.20%. Impurities ≤0.10%. Turbidity: slight permitted. Colour: deeper (red ≤3.5). Uses: general lubrication, soap, basic chemicals.
Standard stock items are industrial grade. For special-grade orders, please contact us for full documentation.
Uses and Applications
Key applications
- Solvents
- Lubricants
- Personal Care
- Paint and Coatings
Industries
- Beauty & Personal Care
- Cleaning
- Pharma
- Polymers
- CASE & Construction
- Energy Services
- Water Treatment
- Lubricants
- Rubber
Castor Oil Used in the Pharmaceutical Industry
● Oral formulation raw materials: Castor oil can be incorporated into oral preparation systems. It undergoes hydrolysis to generate ricinoleic acid within gastrointestinal environments and serves as a component for intestinal formulation development.
● Topical formulation raw materials: It features lubricating characteristics and can form surface films within topical systems. It is adopted as a base material for external preparation formulas applied to epidermal formulation systems.
● Other pharmaceutical uses: Acts as an excipient for soft gelatin capsules and serves as a solvent component in injection and other pharmaceutical formulations.
Castor Oil Used in the Lubricant Industry
Widely used in high-precision equipment such as aircraft engines and racing engines. Good biodegradability. Suitable for environmentally friendly hydraulic oils.
Castor Oil Used in the New Energy Industry
Castor oil is a renewable resource. An important potential feedstock for biodiesel and bio-based plastics.
Castor Oil Used in the Cosmetic Industry
●Skin & hair care formulations: Castor oil serves as a base oil within skincare and haircare systems. It delivers emollient properties and helps maintain the physical characteristics of cosmetic matrices.
● Cosmetic ingredient: Incorporated into lipsticks, lotions and soap formulations. It offers emollient texture and improves the stability of finished cosmetic systems.
Castor Oil Used in the Chemical Manufacturing Industry
In chemical production, castor oil is a key starting material for high-performance polymers such as nylons. After chemical modification, it is used in surfactants and coatings.
