BLACK PN Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 2519-30-4 |
| Product name | BLACK PN |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial GradeSpecialty GradeCosmetic GradeFood 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 BLACK PN
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk BLACK PN Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of BLACK PN
| Industry | Application | Process |
|---|---|---|
| Food Industry | Food Colorant | Dissolved in water or ethanol, then incorporated into food formulations for coloring |
| Printing Inks | Ink Additive | Blended with other pigments and resins to manufacture black inks |
| Cosmetics | Colorant for cosmetics such as eyeshadow and lipstick | Blended with cosmetic bases to impart color to the final product |
Manufacturing Quality Control of BLACK PN
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (C.I. Food Black 1 content) | UV-Vis Spectrophotometry | Quantifies absorbance at characteristic wavelength (e.g., ~620 nm) using calibration curve against certified reference standard. |
| Loss on Drying | Gravimetric (Thermogravimetry) | Measures mass loss after drying at specified temperature (e.g., 105 C) to determine volatile content including moisture and solvents. |
| Water Content | Karl Fischer Titration | Electrochemical titration using iodine-based reagent to selectively quantify water via stoichiometric reaction. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) | Measures absorption of specific wavelengths by atomized metal ions in flame or graphite furnace. |
| Arsenic | Hydride Generation-AAS (HG-AAS) | Converts arsenic to volatile arsine gas, then quantifies atomic absorption after decomposition in quartz cell. |
| Sulfated Ash | Gravimetric (Ignition Residue) | Determines inorganic residue mass after high-temperature incineration (e.g., 500–600 C) of sample. |
| pH of Aqueous Solution | Potentiometric pH Measurement | Measures hydrogen ion activity using calibrated glass electrode in standardized aqueous suspension. |
| Chloride Impurity | Argentometric Titration (Mohr method) | Titrates chloride with silver nitrate using potassium chromate indicator; endpoint signaled by red Ag2CrO4 precipitate. |
| Residual Solvents (e.g., ethanol, acetone) | Gas Chromatography (GC-FID) | Separates and quantifies volatile organic residues using flame ionization detection and internal standard calibration. |
| Particle Size Distribution | Laser Diffraction | Analyzes angular scattering intensity of laser beam passing through dispersed particles to calculate size distribution. |
| Color Strength (Relative) | UV-Vis Spectrophotometry | Compares absorbance ratio of sample solution to reference standard at specified wavelength to assess dyeing power. |
| Organic Impurities (Related Substances) | High-Performance Liquid Chromatography (HPLC-UV) | Separates and detects structurally related compounds using reversed-phase column and UV detection at multiple wavelengths. |
Technical Specifications of BLACK PN
| Test Item | Specification |
|---|---|
| Appearance | Dark green to black crystalline powder |
| Purity | >=98.5% |
| Total Impurities | <=1.5% |
| Water Content (KF) | <=0.5% |
| Heavy Metals | <=20 ppm |
| Residue on Ignition | <=0.3% |
| Solubility | Soluble in water and ethanol; insoluble in hexane |
| Odor | Characteristic mild odor |
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 BLACK PN
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of BLACK PN
Packaging of BLACK PN
Industrial BLACK PN 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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