PRODUCT DATA SHEET (TDS)
1. Product Identification
| Item | Details |
| Product Name | ε-Caprolactone (Epsilon-Caprolactone Monomer) |
| CAS No. | 502-44-3 |
| Molecular Formula | C₆H₁₀O₂ |
| Molecular Weight | 114.14 g/mol |
| Appearance | Colorless transparent liquid, no visible impurities |
2. Typical Specifications
| Analysis Item | Unit | Standard Specification | Typical Test Result |
| Appearance | – | Colorless transparent liquid, no visible impurities | Colorless transparent liquid, no visible impurities |
| Purity | % | ≥ 99.90 | 99.96 |
| Color (Hazen) | Hazen | ≤ 10 | 5 |
| Water Content | % | ≤ 0.050 | 0.010 |
| Acidity | mgKOH/g | ≤ 0.30 | 0.16 |
3. Physical & Chemical Properties
| Item | Details |
| Melting Point | -1 °C |
| Boiling Point | 215–216 °C |
| Flash Point (closed cup) | 109 °C |
| Density | 1.069 g/cm³ (20 °C) |
| Refractive Index | 1.464–1.466 (20 °C) |
| Viscosity | ~2.1 mPa·s (25 °C) |
| Solubility | Slightly soluble in water; miscible with common organic solvents |
| Stability | Stable under normal conditions; avoid moisture, heat and strong oxidizing agents |
4. Applications
- Primary raw material for polycaprolactone (PCL) and PCL-based polyols, widely used in biodegradable polymers, polyurethane elastomers and coatings.
- Used in the production of high-performance polyurethane coatings, adhesives, and sealants to improve flexibility, weather resistance, and low-temperature properties.
- Applied in medical materials such as absorbable sutures, drug delivery systems, and orthopedic implants due to its biodegradability and biocompatibility.
- Serves as an intermediate for the manufacture of caprolactam, adipic acid, and other fine chemical derivatives.
5. Packaging & Storage
- Packaging: 1100kg/IBC drums.
- Storage: Keep in a cool, dry, well-ventilated warehouse. Store away from heat sources, oxidizing agents, moisture, and incompatible materials.
- Shelf Life: 12 months under proper storage conditions.
6. Safety & Handling
- Use standard personal protective equipment (safety goggles, chemical-resistant gloves, and protective clothing) during handling.
- Avoid inhalation of vapors and direct contact with skin and eyes.
- In case of contact, rinse immediately with plenty of water and seek medical advice if irritation persists.
- Refer to the product SDS for detailed safety, handling, and disposal instructions.
