Castor oil
- Createtime： 2026-04-14
- Updatetime： 2026-07-24
Product Details
| useage |
Industrial use
|
| deliveryInfo |
|
| appearance |
solid
|
| Molecular Weight |
929.43
|
| aliasen |
|
| supplyCapacity |
50000MT/Month
|
| harbor |
Qingdao,China
|
| minorder |
1KG
|
| Appearance |
Pale white crystal solid
|
Shandong Huashang Chemical Co., Ltd. is a high-tech enterprise focused on industry of fine chemicals research and develop, produce and sale. Shandong Huashang Chemical Co., Ltd. is located in Shan Dong Ji Nan China. we have the ability to provide you high quality products. More than 90 % of our products are exported to developed countries and regions such as north America, Europe, Japan, South Korea and the Middle East.
1. Basic Info
Name: Castor oil
Alias: Ricinus communis oil
CAS No.:8001-79-4
Main representative molecular formula: C57H104O9
Average molecular weight:929.43
2. Physical & Chemical Properties
Physical Properties
- Appearance: Colorless to pale yellow viscous transparent oily liquid
- Odor: Mild faint characteristic plant oil odor
- Solubility: Insoluble in water; miscible with ethanol, methanol, acetone, chloroform, benzene, mineral oil; limited solubility in aliphatic alkane solvents
- Melting Point: -10 ~ -18℃
- Boiling Point: ~313℃
- Density (20℃):0.958 ~ 0.969 g/cm3
- Refractive Index nD20:1.477 ~ 1.481
- Viscosity: High viscosity, far thicker than common vegetable oils
- Hygroscopy: Slightly hygroscopic
- Volatility: Non-volatile oil
Chemical Properties
- Composition: Main component is ricinoleic acid triglyceride, contains a large amount of hydroxyl unsaturated fatty acid
- Ester hydrolysis: Under acid/alkali heating, hydrolyze to ricinoleic acid and glycerol
- Dehydration reaction: Heating with catalyst removes hydroxyl group to generate dehydrated castor oil (conjugated double bonds, good drying property)
- Esterification/transesterification: Hydroxyl group on ricinoleic acid reacts with organic acids to form castor oil ester derivatives
- Oxidation: Unsaturated double bonds will slowly oxidize and rancidify under long-term air and light exposure
- Thermal stability: Stable below 200℃; cracking occurs above 300℃
- Compatibility: Compatible with most polar resins, surfactants; incompatible with strong oxidants
3. Main Application Fields
1. Chemical Synthetic Raw Material (Core Application)
- Raw material for dehydrated castor oil, castor oil alkyd resin, polyurethane polyol
- Manufacture of sebacic acid, nylon engineering plastic monomer
2. Cosmetic & Daily Chemical Raw Material
- Emollient base oil for cream, mask, hair care oil, massage essential oil
- Raw material for mild nonionic surfactants (castor oil ethoxylate)
3. Pharmaceutical Excipient
- Laxative raw material, oral medicinal grade castor oil for intestinal lubrication
- Ointment matrix, solubilizer for fat-soluble active ingredients
4. Industrial Lubricant & Plasticizer
- High-viscosity lubricating oil for high-load mechanical equipment, aviation lubricant auxiliary
- Plasticizer for PVC, rubber, softening modifier
5. Food Industry (Food-grade refined castor oil)
Release agent for food mold, food processing lubricant auxiliary
4. Quality Specification Table
| Test Item | Standard Index |
| CAS Number | 8001-79-4 |
| Main Molecular Formula | C57H104O9 |
| Average Molecular Weight | 929.43 |
| Appearance | Pale white crystal solid
|
| Acid Value | ≤2.0 mgKOH/g (Industrial); ≤0.8 mgKOH/g (Pharma/Food) |
| Iodine Value | 82 ~ 90 gI2/100g |
| Moisture Content | ≤0.15% |
| Color (APHA) | ≤150 |
| Heavy Metals (Pb) | Food/Pharma grade ≤10 ppm |
| Bulk Package | 200L plastic-lined iron drum / IBC ton barrel |
| Storage Condition | Hermetic light-proof cool warehouse ≤25℃; isolate air to prevent rancidity |
| Transportation Rule | Vegetable oil liquid, sealed anti-leakage, avoid high temperature exposure |
| Shelf Life | 18 months under intact sealed packaging |
