Product Information
Product Name ε-Caprolactam
CAS No. 105-60-2
Synonym Caprolactam, 2-Oxohexamethylenimine, Azepan-2-oneEINECS 203-313-2
Molecular Formula C₆H₁₁NO
Molecular Weight 113.16
Chemphysical Properties
Appearance White flaky crystalline solidOdor Slight characteristic odor
Melting Range 68–70℃
Boiling Point 270℃Density (70℃) 1.02 g/cm³
Flash Point 125℃
Solubility Freely soluble in water, ethanol, methanol, benzene; slightly soluble in aliphatic hydrocarbons
Stability Stable under dry sealed storage; hygroscopic, avoid moisture and strong oxidants
Quality Specification
| Test Item | Spec |
|---|---|
| Assay (GC), % | ≥99.9 |
| Crystallization Point, ℃ | ≥68.5 |
| Moisture, % | ≤0.05 |
| Volatile Base, mmol/kg | ≤0.4 |
| Permanganate Number | ≥20000 |
| Heavy Metal (Pb), ppm | ≤10 |
| Iron (Fe), ppm | ≤0.5 |
Use & Application
Polymer grade caprolactam is the primary monomer for the production of polyamide 6 (nylon 6). Nylon 6 resin can be further processed into engineering plastics, textile fiber, industrial yarn, film and monofilament. Nylon 6 fiber is widely used in garment fabrics, carpet and tire cord. Nylon 6 plastic is applied in auto parts, electronic components, gears and bearings.
Fine chemical grade caprolactam works as organic synthesis intermediate for the production of amino caproic acid, cross-linking agents and pharmaceutical intermediates. It is also used in the synthesis of polyurethane modifiers and coatings raw materials.
Other applications include plasticizer raw material, leather treatment agent and solvent for special formulations.
Packing
25kg polypropylene bag with PE inner liner; 1000kg jumbo bag available.
Delivery & Storage
Seal tightly, store in cool, dry and ventilated warehouse. Prevent moisture absorption. Keep away from heat source, direct sunlight and oxidizing agents. Keep separated from acidic materials. Shelf life is 24 months under proper storage.
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