Caprolactam Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 105-60-2 |
| Product name | Caprolactam |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeMaterial GradeSpecialty GradeIndustrial Grade |
| Packaging | 25KG/bag500KG/bag1000KG/bag |
| Sample | Test Samples Available (Click to Request Samples) |
| COA | View COA |
| Price | Get Quote |
| Supply Type | Bulk / Contract manufacturing / OEM |
| Shipping | FCL / LCL available |
| Payment Terms | Support FOB \ CIF \ EXW quotations, and accept Letter of Credit (L/C). |
| Manufacturer | Greenrock Chemical(China Factory) |
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Documents We Provide for Caprolactam
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Caprolactam Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Caprolactam
| Industry | Application | Process |
|---|---|---|
| Textiles | Production of nylon 6 fibers for apparel, carpets, and industrial fabrics | Caprolactam undergoes ring-opening polymerization to produce polyamide 6 (nylon 6 resin), which is then melt-spun into fibers |
| Engineering Plastics | Manufacture of nylon 6 engineering plastics for automotive components, electronic and electrical parts, and mechanical components | Caprolactam is polymerized and subsequently processed via injection molding, extrusion, or compression molding to produce high-strength, wear-resistant plastic parts |
| Film Production | Production of nylon 6 films for food packaging, medical packaging, and composite materials | Polymerized nylon 6 resin is converted into film via blow molding or cast film processes |
| Pharmaceuticals | Intermediate in the synthesis of certain pharmaceuticals (e.g., analgesics, antibiotics) | Caprolactam is chemically transformed—via hydrolysis, condensation, or similar reactions—into specific drug molecules |
| Chemical Synthesis | Raw material for producing chemicals such as lysine and laurocapram | Serves as a precursor in organic synthesis reactions, including catalytic hydrogenation and oxidation |
Manufacturing Quality Control of Caprolactam
| Test Item | Common Test Method | Method Overview |
|---|---|---|
| Purity | Gas Chromatography (GC) | Uses capillary column gas chromatography to determine the purity of caprolactam by comparing retention times and peak areas with standard substances. Suitable for high-purity sample analysis, offering high sensitivity. |
| Moisture Content | Karl Fischer Titration | Determines water content in samples based on the reaction of iodine and sulfur dioxide with water in an anhydrous environment, using potentiometric titration. Highly accurate and suitable for trace moisture determination. |
| Acid Value (Acidity) | Acid-Base Titration | The sample is dissolved in a suitable solvent (e.g., ethanol) and titrated with a standard sodium hydroxide solution to calculate free acid content, reflecting the level of acidic impurities. |
| Color | Platinum-Cobalt Colorimetric Method (Hazen Units) | Compares the sample visually or using a spectrophotometer against a platinum-cobalt standard color scale to measure color intensity, used to evaluate product appearance quality. |
| Volatile Impurities | Headspace Gas Chromatography (HS-GC) | The sample is heated to equilibrium in a sealed container, and the headspace gas is injected for analysis of volatile organic compounds (e.g., benzene, toluene). Suitable for detecting low-boiling-point impurities. |
| Ash Content | Gravimetric Method (Ignition Residue) | The sample is ignited at high temperature until constant weight; the remaining inorganic residue is weighed as ash, and the percentage is calculated to reflect the level of inorganic impurities. |
| UV Absorbance | Ultraviolet-Visible Spectrophotometry (UV-Vis) | A solution of caprolactam at a specific concentration is prepared, and absorbance is measured at specified wavelengths (e.g., 270 nm, 280 nm) to assess levels of conjugated impurities or degradation products. |
| Metal Ions (e.g., Fe, Ni, Cu) | Atomic Absorption Spectroscopy (AAS) or Inductively Coupled Plasma Mass Spectrometry (ICP-MS) | After sample digestion, trace metal elements are determined by AAS or ICP-MS to ensure catalyst residues meet regulatory standards. |
| Melting Point | Melting Point Determination (Capillary Method or Automatic Melting Point Apparatus) | The melting temperature range is observed during heating to assess purity and crystalline consistency. High-purity caprolactam has a melting point of approximately 69–71°C. |
| Crystallization Point | Crystallization Point Determination | The sample is slowly cooled and the temperature at which crystals first appear is recorded, used to evaluate purity and commonly applied in industrial-grade quality control. |
Technical Specifications of Caprolactam
| Test Item | Specification |
|---|---|
| Crystallization point/℃ | ≥68.9 |
| Hazen | ≤2 |
| Potassium Permanganate Absorption Value | ≤4 |
| Volatile alkali content/(mmol/kg) | ≤0.40 |
| Absorbance at 290 rim wavelength | ≤0.04 |
| Alkalinity/(mmol/kg) | ≤0.08 |
| Acidity/(mmol/kg) | ≤0.05 |
| Water content, w% | ≤0.1 |
| Iron content w(mg/kg) | ≤0.2 |
| Cyclohexanone oxime content w(mg/kg) | ≤15 |
Specifications vary by industry. Reach out to our technical experts for a COA tailored specifically to your application. Email:selse@GRchemical.com
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Download COA of Caprolactam
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of Caprolactam
Packaging of Caprolactam
Industrial Caprolactam Procurement FAQ
1. How do you ensure product quality consistency?
We rely on a mature China-based manufacturing system and implement strict batch control and quality inspection for every shipment. Our production process complies with ISO 9001 standards, and a COA is provided for each batch to ensure consistent and reliable quality.
2. Do you offer competitive pricing for bulk orders?
Yes, as a China-based manufacturer and bulk supplier, we provide tiered pricing based on order volume. We support FOB and CIF quotations, as well as L/C payment terms for large transactions to meet international trade requirements.
3. Can you support large-volume or long-term supply?
We have stable production capacity and a well-established supply chain, enabling continuous bulk supply. We support ton-level and container-level orders, as well as long-term cooperation projects.
4. What is your typical lead time?
For in-stock products, shipment can be arranged within 1–3 days. For bulk packaging or customized orders, lead time depends on the specific quantity and production schedule.
5. What documents do you provide?
We can provide complete documentation upon request, including COA, SDS, TDS, and other compliance certificates, meeting industrial procurement and export requirements.
6. Can you customize product specifications or packaging?
Yes, we support customization of parameters such as purity, impurities, residual solvents, and heavy metals. We also offer various bulk packaging options, including 25kg bags, drums, and IBC tanks, suitable for industrial applications and transportation.
7. What shipping options do you support?
We support both FCL (Full Container Load) and LCL (Less than Container Load) shipments, and can flexibly arrange logistics solutions based on order size to meet bulk chemical export needs.
8. Do you provide technical or application support?
Yes, we provide basic application guidance and technical support based on industry experience to help customers optimize product usage.
9. How do you handle compliance and export regulations?
We are familiar with international trade and export regulations, ensuring all products comply with relevant requirements. We also provide complete documentation to support smooth customs clearance and global delivery.
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