Product Information
CAS No.: 502-44-3Name: ε-Caprolactone
Synonym: 2-Oxepanone, 6-Hexanolactone, Epsilon-Caprolactone
EC No.: 207-938-1
Molecular Formula: C₆H₁₀O₂
Molecular Weight: 114.14
MDL: MFCD00006631
Chemphysical Properties
Appearance: Clear colorless oily liquid
Density (20℃): 1.068–1.072 g/ml
Boiling point: 234–236 ℃
Flash point (closed cup): 109 ℃
Refractive index n20/D: 1.462–1.464
Freezing point: -1.5 ℃
Solubility: Miscible with most organic solvents, partly soluble in water; prone to ring-opening polymerization under moisture/acid/alkali
Quality Specification
| Item | Standard |
|---|---|
| Purity (GC) | 99.0% min |
| Water | 0.05% max |
| Color (APHA) | 20 max |
| Acid value | 0.2 mg KOH/g max |
Use & Application
Main monomer for PCL polyol, biodegradable materials, polyurethane elastomers, UV curing oligomers, high-performance coatings, adhesives, surgical sutures and fine chemical intermediates.
Packing
200kg steel drum / IBC tank, nitrogen-sealed.
Delivery & Storage
Seal tightly, store in cool, dry, ventilated warehouse, avoid moisture, acids, alkalis and high temperature.
Stabilizer added to prevent auto-polymerization. UN 2290, hazard class 6.1.
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