UV Absorber 384 Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 127519-17-9 |
| Product name | UV Absorber 384 |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradeIndustrial GradeMaterial GradeSpecialty GradeCosmetic GradeFood Grade |
| Packaging | 25KG/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 384
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk UV Absorber 384 Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of UV Absorber 384
| Industry | Application | Process |
|---|---|---|
| Plastics Industry | Prevents yellowing, embrittlement, and deterioration of mechanical properties in engineering plastics—such as polycarbonate, polypropylene, and ABS—under UV exposure | Added by compounding with the resin during molten plastic processing (e.g., injection molding, extrusion); typical dosage: 0.1–0.5 wt% |
| Coatings & Inks | Enhances weather resistance of automotive coatings, wood finishes, coil coatings, and UV-curable inks; suppresses photodegradation and color shift | Incorporated into the grinding paste or during let-down; used synergistically with leveling agents, defoamers, and other additives |
| Cosmetics | Acts as a chemical UV absorber in sunscreen formulations, primarily absorbing UVA radiation (320–400 nm) | Added to the aqueous or oil phase during emulsification; subject to regional cosmetic regulatory limits (e.g., EU Regulation EC No 1223/2009 specifies a maximum concentration of 0.5%) |
| Adhesives & Sealants | Improves outdoor durability of silicone- and polyurethane-based construction sealants and industrial adhesives | Uniformly dispersed into the matrix during mixing or devolatilization; avoid prolonged exposure to high temperatures to prevent decomposition |
| Agricultural Films | Retards photo-oxidative degradation and rupture of polyethylene (PE) or ethylene-vinyl acetate (EVA) mulch films under sunlight | Formulated with antioxidants (e.g., Irganox 1010) and light stabilizers (e.g., Tinuvin 770); compounded via blow-film extrusion after pelletization |
Manufacturing Quality Control of UV Absorber 384
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (UV-384 Content) | HPLC-UV | Quantitative determination using reverse-phase HPLC with UV detection at 340 nm, based on peak area comparison against a certified reference standard. |
| Appearance | Visual Inspection | Assessment of physical state and color by observation under controlled white light against standard reference samples. |
| Melting Point | Capillary Melting Point Apparatus | Determination of temperature range at which solid transitions to liquid, following ASTM D1565 or ISO 4625. |
| Loss on Drying | Gravimetric (105 C, 2 h) | Measurement of mass loss after drying under specified temperature and time to determine volatile content including moisture and solvents. |
| Residue on Ignition | Gravimetric (Ashing at 550 C) | Determination of non-volatile inorganic residue after high-temperature combustion in a muffle furnace. |
| Heavy Metals (as Pb) | AAS or ICP-OES | Quantification of total heavy metals after acid digestion, using atomic absorption spectroscopy or inductively coupled plasma optical emission spectrometry. |
| Chlorinated Impurities | GC-ECD | Detection and quantification of chlorinated organic impurities using gas chromatography with electron capture detection. |
| Solvent Residues (e.g., Toluene, Methanol) | GC-FID | Quantitative analysis of residual solvents by gas chromatography with flame ionization detection using internal standard calibration. |
| Acid Value | Acid-Base Titration (KOH in ethanol) | Determination of free carboxylic acid groups by titration with standardized potassium hydroxide solution in alcoholic medium. |
| UV Absorption Maxima (lambda-max) | UV-Vis Spectrophotometry | Identification of characteristic absorption peak wavelength in methanol or ethyl acetate solution using double-beam spectrophotometer. |
| Absorbance Ratio (A340/A280) | UV-Vis Spectrophotometry | Calculation of ratio of absorbance at 340 nm to that at 280 nm to assess spectral purity and absence of aromatic impurities. |
| Particle Size Distribution | Laser Diffraction | Measurement of particle size distribution in dry powder form using laser diffraction principle according to ISO 13320. |
Technical Specifications of UV Absorber 384
| Test Item | Specification |
|---|---|
| Appearance | Pale yellow to light amber viscous liquid |
| Purity | >=98.5% |
| Water Content (KF) | <=0.5% |
| Melting Point | -15 to -10°C |
| Total Impurities | <=1.2% |
| Single Impurity | <=0.3% |
| Refractive Index (n20/D) | 1.525–1.535 |
| Color (APHA/Pt-Co) | <=100 |
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 384
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
Packaging of UV Absorber 384
Industrial UV Absorber 384 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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