Caprolactam(CPL) CAS 105-60-2 Premium Monomer for Nylon 6 Synthesis
Caprolactam (CPL), with CAS Number 105-60-2, is a high-purity cyclic amide that serves as the critical, exclusive monomer for the production of Nylon 6 (Polycaprolactam). Through ring-opening polymerization, Caprolactam is transformed into Nylon 6 resins, a versatile polymer highly prized across global heavy industries for its exceptional tensile strength, superior abrasion resistance, high impact toughness, and chemical stability.
As a leading certified high-grade chemical exporter, we specialize in supplying top-tier crystalline Caprolactam. Our product features ultra-low water content and volatile alkali parameters, making it perfectly suited for high-speed fiber spinning, performance engineering plastics, and industrial packaging film extrusions.
- Perfect Ring-Opening Reaction Kinetics: The optimal crystalline purity guarantees uniform reaction rates during ring-opening polymerization, eliminating unreacted monomer residues in the resulting polymer matrix.
- Excellent Thermal & Mechanical Durability: Nylon 6 polymers derived from our high-grade CPL display robust thermal thresholds and high physical fatigue resistance.
- Ultra-Low Hazen Index: Low color scores (≤ 2) ensure that downstream textiles, synthetic fibers, and plastic parts preserve an excellent optical matrix and take custom dyes brilliantly.
- Multi-Solvent Versatility: Soluble in water and common organic formulations, providing convenience in alternative chemical compounding and handling.
Caprolactam Description
NAME: Caprolactam (CPL)
Synonyms: Azepan-2-one / Aminocaproic lactam / cyclohexanamine / Hexanolactam / 1-Aza-2-cycloheptanone / 2-Azacycloheptanone
Molecular Formula: C6H11NO
Molecular Weight: 113.16
CAS NO.: 105-60-2
Density: 1.1±0.1 g/cm3
Boiling point: 268 ºC
Melting point: 68-71 °C(lit.)
Flashing point: 152 ºC
Appearance: White crystalline solid
Solubility: High solubility in water, alcohol, benzene, and ether
Properties: Caprolactam is a colorless crystal in solid state with a special amine odor. It has good solubility and is soluble in common solvents such as water, alcohol, benzene and ether. It can be polymerized into nylon 6 at high temperature and has good thermal stability and mechanical properties.
Package: Plastic bag, heat-sealed, covered with nylon woven bag or kraft paper bag, 25 kg per bag.
Storage: Stored in a dry and clean warehouse, fireproof, moisture-proof, heat-proof and sun-proof. The shelf life is three months.
Shelf Life: 3 months from production date under unopened, strictly dry storage parameters.
Safety protection: This product is toxic. Long-term inhalation can cause chronic poisoning, such as neurasthenia, dizziness, headache, nosebleed and respiratory inflammation. It is corrosive to the skin, so avoid direct contact. The production site must be forced to ventilate. Operators must wear labor protection equipment.
Cyclohexanamine Technical
Our Caprolactam is strictly monitored to ensure flawless processing performance during downstream polymerization.
| Item | Index |
| Appearance | White crystalline solid |
| Hazen | ≤ 2 |
| Volatile alkali(mmol/kg) | ≤ 0.40 |
| Alkalinity(mmol/kg) | ≤ 0.08 |
| Water content(w/%) | ≤ 0.10 |
As a certified Caprolactam & CPL factory, we adhere to strict quality protocols, with every batch undergoing rigorous testing to ensure consistent efficacy and safety.
Azepan-2-one Applications
- Nylon 6 Synthetic Fibers: The backbone material for producing heavy-duty textile yarns, commercial apparel, high-strength industrial tire cord fabrics, fishing nets, and durable carpets.
- Engineering Plastics: Widely molded into durable components for automotive engine compartments, structural housings, gears, and power tool casings requiring premium toughness.
- High-Barrier Packaging Films: Extruded into specialized BOPA (Biaxially Oriented Polyamide) films used in food packaging, medical packaging, and chemical vapor barriers.
- Dye Auxiliaries & Surface Treatment Agents: Acts as a chemical synthesis building block for industrial dye auxiliaries, leather processing finishes, and specialized coating plasticizers.
Frequently Asked Questions (FAQ) for Caprolactam
Q1: Is this Caprolactam grade used for Nylon 6 or Nylon 6,6?
A1: This product is strictly the single-monomer precursor for Nylon 6. Nylon 6,6 is created via a completely separate synthesis method using adipic acid and hexamethylenediamine. Our CPL is optimized specifically for high-efficiency Nylon 6 polymerization loops.
Q2: What international equivalents can your Caprolactam replace?
A2: Our pure crystalline Caprolactam perfectly aligns with major global manufacturing standards, matching the processing behavior of brand benchmarks like Extrom 6N and Capron PK4 in masterbatch compounding and fiber extrusion.
Q3: Why is the shelf life listed as 3 months, and how do you prevent clumping?
A3: Caprolactam is highly hygroscopic (absorbs moisture readily from the air). To avoid clumping, we utilize advanced heat-sealed inner linings in our 25 kg bags. We recommend keeping the bags completely sealed in a humidity-controlled warehouse and managing your stock on a first-in, first-out (FIFO) basis.
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