China Factory Direct
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| CAS number | 2687-94-7 |
| Product name | N-Octyl pyrrolidone |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial 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) |
Based on current marketvolatility and material availability.
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
| Industry | Application | Process |
|---|---|---|
| Electronics & Semiconductors | Photoresist stripper | Dissolves and removes residual photoresist and polymers after photolithography, typically via heated immersion or spray processing |
| Electronics & Semiconductors | Precision cleaning solvent | Removes particulates, oils, and organic residues from semiconductor wafers or electronic components |
| Electronics Industry | LCD polarizer cleaning | Cleans impurities and protective layers from polarizer surfaces during LCD manufacturing |
| Agrochemicals | Pesticide adjuvant / penetrant | Added to pesticide formulations to enhance wetting and penetration of spray solutions on plant leaf surfaces |
| Agrochemicals | Pesticide solvent | Serves as a high-efficiency, low-toxicity solvent for active ingredients in emulsifiable concentrates, suspension concentrates, and other pesticide formulations |
| Industrial Manufacturing | Industrial cleaning agent | Removes oils, greases, and industrial contaminants from precision machinery and metal parts |
| Textile Dyeing & Printing | Dye solvent | Dissolves dye intermediates during dye processing or functions as a dyeing auxiliary to improve dye dispersion |
| Coatings & Inks | High-performance solvent | Dissolves resins and pigments in premium coatings and ink systems, and adjusts viscosity and leveling properties |
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Gas Chromatography (GC) with FID detection | Quantitative determination based on peak area comparison against a certified reference standard using a non-polar capillary column. |
| Water Content | Karl Fischer Titration (Coulometric) | Electrochemical titration where iodine is generated in situ to react stoichiometrically with water; endpoint detected by current change. |
| Acidity (as H2SO4) | Acid-Base Titration with NaOH | Neutralization of acidic impurities using standardized sodium hydroxide solution and potentiometric or phenolphthalein endpoint detection. |
| Color (APHA) | Visual Comparison or Spectrophotometric Measurement at 455 nm | Measurement of yellowness intensity by comparing sample absorbance at 455 nm to APHA color scale standards. |
| Density at 20 C | Digital Density Meter (Oscillating U-tube) | Determination of mass per unit volume via precise measurement of oscillation period of a U-shaped tube filled with sample. |
| Refractive Index at 20 C | Refractometry (Abbe type) | Measurement of light bending angle at air-sample interface to calculate refractive index, correlated to purity and composition. |
| Residue on Evaporation | Gravimetric Analysis (Weight Loss on Drying) | Evaporation of a known sample mass under controlled temperature and pressure, followed by weighing of non-volatile residue. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) after wet digestion | Quantification of metal content by measuring absorption of characteristic atomic spectral lines after acid digestion and matrix separation. |
| Non-Volatile Matter | Gravimetric Analysis (Evaporation Residue) | Evaporation of sample under vacuum at elevated temperature, followed by drying and weighing of residual solids. |
| Chloride Content | Ion Chromatography (IC) with Conductivity Detection | Separation of anions on an ion-exchange column and quantification via conductivity response relative to chloride calibration standards. |
| Aldehyde Impurities | HPLC with UV detection after derivatization (e.g., DNPH) | Derivatization of aldehydes to hydrazones followed by reversed-phase HPLC separation and UV absorbance quantification. |
| Peroxide Value | Iodometric Titration | Oxidation of potassium iodide by peroxides to liberate iodine, titrated with standardized sodium thiosulfate using starch indicator. |
| Test Item | Specification |
|---|---|
| Appearance | Colorless liquid |
| Assay | ≥90.0% |
| Water | ≤0.2% |
| Color(Pt-Co) | ≤60 |
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| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
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.