UV Absorber 2908 Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 67845-93-6 |
| Product name | UV Absorber 2908 |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial GradeMaterial GradeSpecialty GradeFood GradeCosmetic 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 2908
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk UV Absorber 2908 Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of UV Absorber 2908
| Industry | Application | Process |
|---|---|---|
| Plastics Industry | Antioxidant | Added to polymers to enhance oxidation resistance and delay aging; typically blended with other additives during plastic processing. |
| Rubber Products | Stabilizer | Added as a long-term thermal stabilizer in rubber compounds to prevent degradation by reacting with free radicals generated in the rubber. |
| Lubricants | Antioxidant Additive | Used to improve oxidation resistance and extend service life; typically incorporated during base oil blending. |
| Cosmetics | Anti-aging Ingredient | Added as an antioxidant to skincare formulations to help protect skin from environmental damage. |
| Food Packaging | Safety Enhancer | Applied in food-contact materials (e.g., plastic films) to provide additional safety assurance by inhibiting migration of harmful substances into food. |
Manufacturing Quality Control of UV Absorber 2908
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantifies main component using reversed-phase HPLC with UV detection at 280 nm based on peak area comparison against reference standard. |
| Related Substances | HPLC-UV | Detects and quantifies structurally related impurities (e.g., unreacted phenol, acid, or isomers) using gradient HPLC-UV with suitable resolution. |
| Residual Solvents | GC-FID | Measures trace solvents (e.g., toluene, hexane, ethanol) by gas chromatography with flame ionization detection using headspace sampling. |
| Moisture Content | Karl Fischer Titration | Determines water content via coulometric or volumetric titration using iodine generation in pyridine-free reagent system. |
| Acid Value | Acid-Base Titration | Measures free carboxylic acid groups by titration with standardized KOH solution in isopropanol/toluene mixture using phenolphthalein indicator. |
| Melting Point | Capillary Melting Point Apparatus | Determines temperature range at which solid transitions to liquid using calibrated capillary apparatus per USP <741>. |
| Appearance | Visual Inspection | Assesses physical state, color, and homogeneity of bulk sample against standard white background under controlled lighting. |
| Heavy Metals | ICP-OES | Quantifies Pb, Cd, Hg, As, and Cr by inductively coupled plasma optical emission spectrometry after acid digestion. |
| Sulfated Ash | Gravimetric Analysis | Measures inorganic residue after charring followed by sulfuric acid treatment and high-temperature incineration. |
| Chloride Content | Ion Chromatography | Separates and quantifies chloride ions using anion-exchange column with suppressed conductivity detection. |
| Bulk Density | Tap Density Measurement | Determines mass per unit volume after standardized tapping of powder in calibrated cylinder per USP <616>. |
| Particle Size Distribution | Laser Diffraction | Measures particle size distribution in dispersed phase using Mie scattering theory and calibrated laser diffraction instrument. |
Technical Specifications of UV Absorber 2908
| Test Item | Specification |
|---|---|
| Appearance | White crystalline solid |
| Purity | >=98.0% |
| Total Impurities | <=2.0% |
| Water Content (KF) | <=0.5% |
| Melting Point | 118–122 °C |
| Acid Value (mg KOH/g) | <=1.0 mg KOH/g |
| 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 2908
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of UV Absorber 2908
Packaging of UV Absorber 2908
Industrial UV Absorber 2908 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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