N-Methyl-2-pyrrolidone Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 872-50-4 |
| Product name | N-Methyl-2-pyrrolidone |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradeMaterial GradeSpecialty GradeIndustrial GradeElectronic GradeCosmetic GradeFood Grade |
| Packaging | 25L/drum200L/drum1000L/IBC |
| 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 N-Methyl-2-pyrrolidone
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk N-Methyl-2-pyrrolidone Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of N-Methyl-2-pyrrolidone
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Drug synthesis and extraction | Used as a polar solvent |
| Electronics | Printed circuit board (PCB) manufacturing | Used as a solvent for cleaning semiconductor chips |
| Coatings and Inks | Manufacturing of coatings and inks | Used as a solvent to dissolve resins and pigments |
| Textiles and Leather | Dye auxiliaries and tanning agents | Applied in dyeing and leather processing |
| Cosmetics | Cosmetic and personal care products | Used as a solvent and humectant |
| Agriculture | Pesticide formulation | Used as a solvent or adjuvant |
| Others | Leather processing, metal cleaning, plastics | Used as a degreaser or plasticizer |
Manufacturing Quality Control of N-Methyl-2-pyrrolidone
| Test Item | Common Test Methods | Method Overview |
|---|---|---|
| Purity (NMP Content) | Gas Chromatography (GC) | Using capillary column gas chromatography with an FID detector to quantitatively analyze the content of N-Methyl-2-pyrrolidone (NMP). The purity is calculated by comparing peak areas with a reference standard. |
| Moisture | Karl Fischer Titration | Based on the reaction of iodine and sulfur dioxide with water in the presence of pyridine/imidazole. Moisture content is accurately determined by coulometric or volumetric titration methods. |
| Color | Visual Color Comparison or Platinum-Cobalt Colorimetry | The sample is placed in a standard color comparison tube and visually compared with standard platinum-cobalt solutions, or its absorbance at 430 nm is measured using a spectrophotometer to evaluate color intensity. |
| pH Value | pH Meter Method | The NMP sample is appropriately diluted (e.g., 1:10 in water), and its pH is measured using a calibrated pH meter to reflect the level of acidic or basic impurities. |
| Evaporation Residue | Gravimetric Method | A known quantity of the sample is evaporated to dryness at a specified temperature (e.g., 105°C), and the residue is weighed to calculate the content of non-volatile impurities. |
| Heavy Metals | Atomic Absorption Spectroscopy (AAS) or Inductively Coupled Plasma Mass Spectrometry (ICP-MS) | After sample digestion, the total content of heavy metals such as lead, cadmium, mercury, and arsenic is determined by AAS or ICP-MS to assess toxic impurities. |
| 2-Pyrrolidone (Related Substance) | High-Performance Liquid Chromatography (HPLC) or Gas Chromatography (GC) | Reverse-phase HPLC or GC is used to separate the main impurity 2-pyrrolidone in NMP. Quantification is performed using an external standard method or area normalization to control by-product content. |
| Density | Density Meter Method or Pycnometer Method | The density of the sample is measured at a standard temperature (e.g., 20°C) using a digital density meter or glass pycnometer, serving as a physical parameter for quality consistency evaluation. |
| Refractive Index | Refractometer Method | The refractive index of NMP is measured using an Abbe refractometer at a specified temperature, serving as an auxiliary parameter for identification and purity assessment. |
Technical Specifications of N-Methyl-2-pyrrolidone
| Test Item | Specification |
|---|---|
| Appearance | - |
| ldentification(NMR) | - |
| Purity | - |
| Chroma | - |
| Density | - |
| pH 10% 20°C | - |
| Free Ammonia | - |
| Total Ammonia | - |
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 N-Methyl-2-pyrrolidone
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of N-Methyl-2-pyrrolidone
Packaging of N-Methyl-2-pyrrolidone
Industrial N-Methyl-2-pyrrolidone 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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