Pigment Yellow 191 Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 129423-54-7 |
| Product name | Pigment Yellow 191 |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial GradeSpecialty GradeMaterial 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 Pigment Yellow 191
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Pigment Yellow 191 Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Pigment Yellow 191
| Industry | Application | Process |
|---|---|---|
| Paints & Coatings | Yellow colorant for automotive refinish coatings and industrial topcoats | Ground and dispersed in acrylic or polyester resin systems |
| Plastics | Coloration of thermoplastic resins, including polyolefins (PP, PE), PVC, and PS | Blended with resin followed by extrusion, injection molding, or blow molding |
| Inks | Yellow pigment component in packaging printing inks (e.g., gravure and flexographic inks) | Ground and dispersed in alkyd, polyamide, or nitrocellulose resin systems |
| Textiles | Spun-dyeing of synthetic fibers (e.g., polyester, nylon) | Blended with polymer melt prior to melt spinning or chip spinning |
Manufacturing Quality Control of Pigment Yellow 191
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Purity (Main Component) | HPLC-UV | Quantitative determination using reverse-phase chromatography with UV detection at characteristic wavelength. |
| Moisture Content | Karl Fischer Titration | Volumetric or coulometric titration based on iodine reaction with water in pyridine-methanol medium. |
| Ash Content | Gravimetric Analysis (Ignition at 550 C) | Residue weight after high-temperature incineration of sample in muffle furnace. |
| Particle Size Distribution | Laser Diffraction | Measurement of angular scattering intensity of laser beam passing through dispersed sample. |
| Hue and Chroma | CIE Lab* Colorimetry (D65 Illuminant) | Tristimulus color measurement using spectrophotometer calibrated to CIE standard observer and illuminant. |
| Heavy Metals (Pb, Cd, Hg, Cr) | ICP-OES | Multi-element quantification by measuring atomic emission intensities of plasma-excited elements. |
| Chloride Content | Potentiometric Titration with AgNO3 | End-point detection via silver-silver chloride electrode during precipitation titration. |
| Volatile Organic Compounds (VOCs) | GC-MS | Separation by gas chromatography followed by mass spectral identification and quantification. |
| pH of Aqueous Slurry | pH Meter Measurement | Electrochemical potential difference between reference and glass electrodes in standardized slurry. |
| Bulk Density | Tap Density Test (ASTM D1895) | Mass per unit volume after controlled tapping of sample in calibrated cylinder. |
| Sieve Residue (45 um) | Dry Sieving | Gravimetric determination of material retained on standard 45 um mesh after mechanical agitation. |
| Thermal Stability (TGA Onset) | Thermogravimetric Analysis (TGA) | Monitoring of mass loss as function of temperature under controlled nitrogen atmosphere. |
Technical Specifications of Pigment Yellow 191
| Test Item | Specification |
|---|---|
| Appearance | Yellow crystalline powder |
| Purity | >=98.5% |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.3% |
| Water Content (KF) | <=0.5% |
| Residue on Ignition | <=0.2% |
| Heavy Metals | <=20 ppm |
| Odor | Characteristic, non-offensive |
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 Pigment Yellow 191
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
Packaging of Pigment Yellow 191
Industrial Pigment Yellow 191 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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