UV Absorber 326 Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 3896-11-5 |
| Product name | UV Absorber 326 |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial 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 UV Absorber 326
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk UV Absorber 326 Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of UV Absorber 326
| Industry | Application | Process |
|---|---|---|
| Plastics | UV stabilizer for plastics such as polyethylene, polypropylene, and polyvinyl chloride | Added during polymerization or pelletization and dispersed into the base resin via compounding extrusion |
| Coatings | Protects coatings against UV-induced degradation, preventing yellowing and gloss loss | Incorporated during pigment grinding or paint formulation and dispersed via mechanical mixing |
| Inks | Enhances weather resistance and gloss retention of printed materials and packaging substrates | Blended into ink vehicles and processed into finished inks via dispersion |
| Rubber | Retards light-induced aging, cracking, and hardness changes in rubber products | Added during rubber compounding and mixed with rubber and other additives |
| Fibers | UV stabilization of outdoor synthetic fibers (e.g., polypropylene fibers) | Added during masterbatch preparation or solution dyeing prior to spinning |
| Adhesives | Improves weather resistance of adhesives and bonded assemblies | Directly incorporated during adhesive synthesis or compounding |
Manufacturing Quality Control of UV Absorber 326
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (UV-326 content) | HPLC-UV | Quantitative determination using reverse-phase HPLC with UV detection at 340 nm, based on peak area comparison against certified reference standard. |
| Appearance | Visual Inspection | Assessment of physical state and color by observation under controlled lighting against white background. |
| Melting Point | Capillary Melting Point Apparatus | Determination of temperature range at which solid transitions to liquid using calibrated capillary apparatus per ASTM D1565. |
| Loss on Drying | Gravimetric (Oven Drying) | Measurement of mass loss after drying sample at 105 C for 2 hours, indicating volatile impurities and moisture. |
| Residue on Ignition | Gravimetric (Sulfated Ash) | Determination of inorganic residue remaining after high-temperature combustion in presence of sulfuric acid. |
| Heavy Metals (as Pb) | AAS or ICP-OES | Quantification of total heavy metals by atomic absorption spectroscopy or inductively coupled plasma optical emission spectrometry after acid digestion. |
| Chlorinated Impurities | GC-ECD | Detection and quantification of chlorinated organic impurities using gas chromatography with electron capture detection. |
| UV Absorption Spectra | UV-Vis Spectrophotometry | Verification of characteristic absorbance maxima and spectral profile in ethanol solution per ISO 9227. |
| Acid Value | Acid-Base Titration | Determination of free acidic groups by titration with standardized KOH solution using phenolphthalein indicator. |
| Bulk Density | Gravimetric Volumetric Method | Measurement of mass per unit volume for freely settled powder using standardized cylinder and balance. |
| Particle Size Distribution | Laser Diffraction | Analysis of particle size distribution in dispersed phase using light scattering principles per ISO 13320. |
| Water Content | Karl Fischer Titration | Quantitative determination of water by coulometric or volumetric Karl Fischer reaction with iodine and sulfur dioxide. |
Technical Specifications of UV Absorber 326
| Test Item | Specification |
|---|---|
| Appearance | Pale-yellow solid |
| Purity | >=98.0% (by HPLC) |
| Melting Point | 135–139 °C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=10 ppm |
| Residue on Ignition | <=0.1% |
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 UV Absorber 326
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of UV Absorber 326
Packaging of UV Absorber 326
Industrial UV Absorber 326 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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