TINUVIN 571 Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 23328-53-2 |
| Product name | TINUVIN 571 |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Material GradeSpecialty GradeIndustrial GradeCosmetic GradeFood Grade |
| Packaging | 25L/drum200L/drum1000L/IBC |
| 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 TINUVIN 571
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk TINUVIN 571 Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of TINUVIN 571
| Industry | Application | Processing Method |
|---|---|---|
| Plastics Manufacturing | Prevents UV-induced aging, discoloration, and performance degradation of plastic products such as polyolefins and polystyrene | Added during melt compounding of plastic raw materials; uniformly dispersed in the polymer matrix as a stabilizer |
| Coatings & Inks | Enhances weather resistance of coatings and inks; prevents fading, chalking, and cracking of films | Directly incorporated into formulations; uniformly dispersed in the resin system via mixing or grinding |
| Textile Processing | Provides UV protection for textile fibers and fabrics, extending product service life | Applied to fiber surfaces via padding or coating; thermally fixed at elevated temperatures |
| Cosmetics & Personal Care | Acts as a sunscreen agent to protect skin from UVB and UVA radiation damage | Dissolved and uniformly dispersed in emulsion, cream, or spray formulations; typically used in combination with other UV filters |
| Rubber Industry | Inhibits photo-oxidative degradation of rubber materials during outdoor exposure, maintaining elasticity and appearance | Added during rubber compounding; thoroughly mixed with raw rubber and other additives |
| Packaging Materials | Improves UV resistance of packaging films or containers to prevent product deterioration | Added during film extrusion or injection molding to ensure uniform distribution |
Manufacturing Quality Control of TINUVIN 571
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantifies main component using reverse-phase HPLC with UV detection at 340 nm, based on peak area comparison against certified reference standard. |
| Loss on Drying | Gravimetric (105 C, 2 h) | Measures mass loss after drying under controlled temperature and time to determine volatile content including residual solvents and moisture. |
| Moisture Content | Karl Fischer Titration | Determines water content via coulometric or volumetric titration using iodine-based reagent reacting stoichiometrically with water. |
| Residue on Ignition | Gravimetric (550 C) | Measures non-volatile inorganic residue after high-temperature ashing, indicating inorganic impurities or catalyst residues. |
| Heavy Metals (as Pb) | AAS (Flame or Graphite Furnace) | Quantifies total heavy metals by atomic absorption spectroscopy after acid digestion, calibrated against lead standard. |
| Iron (Fe) Content | ICP-OES | Measures trace iron using inductively coupled plasma optical emission spectrometry following microwave-assisted acid digestion. |
| Chloride (Cl-) Content | Potentiometric Titration with AgNO3 | Determines chloride ions by titration with silver nitrate using silver indicator electrode and endpoint detection via potential change. |
| pH of 1% Aqueous Dispersion | pH Meter Measurement | Measures hydrogen ion activity in aqueous suspension prepared per ASTM D1193, reflecting acidic/basic impurities or hydrolysis products. |
| Melting Point | Capillary Melting Point Apparatus | Determines temperature range at which solid transitions to liquid, indicating purity and identity based on sharpness and agreement with reference value. |
| Organic Volatile Impurities (e.g., toluene, xylene) | GC-FID | Separates and quantifies residual solvents using gas chromatography with flame ionization detection and internal standard calibration. |
| Color (APHA) | Visual Comparison or Spectrophotometric | Evaluates yellowness/browning intensity by matching to APHA platinum-cobalt standards or measuring absorbance at 430 nm in solution. |
| Particle Size Distribution | Laser Diffraction | Determines size distribution of solid particles in suspension using Mie scattering theory and laser diffraction analysis. |
Technical Specifications of TINUVIN 571
| Test Item | Specification |
|---|---|
| Appearance | Clear, pale yellow liquid |
| Purity | >=98.0% (by LC-MS) |
| Water Content (KF) | <=0.5% |
| Melting Point | -15 to -10°C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Refractive Index (n20/D) | 1.520–1.540 |
| Solubility | Miscible with ethanol, ethyl acetate, and toluene; insoluble in water |
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 TINUVIN 571
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NMR Spectra of TINUVIN 571
Packaging of TINUVIN 571
Industrial TINUVIN 571 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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