China Factory Direct
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| CAS number | 991-84-4 |
| Product name | Antioxidant 565 |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Material GradeSpecialty GradeIndustrial 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) |
Based on current marketvolatility and material availability.
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
| Industry | Application | Process |
|---|---|---|
| Plastics Industry | Antioxidant stabilizer for polyolefin plastics | Added to polyethylene, polypropylene, and other polymers as a masterbatch or directly into the resin during processing; incorporated via extrusion, injection molding, and other methods to enhance thermal stability and prevent oxidative degradation during processing and service life |
| Rubber Industry | Aging inhibitor for synthetic rubber | Introduced during the compounding stage of synthetic rubbers such as styrene-butadiene rubber (SBR) and cis-polybutadiene rubber (BR); uniformly dispersed via internal or open mixing to retard performance deterioration under thermal and oxidative conditions |
| Fibers Industry | Thermal stabilizer for chemical fibers | Blended with polyester or polyamide chips prior to spinning, or added during melt spinning, to improve antioxidant performance during high-temperature processing and long-term service |
| Lubricants Industry | Antioxidant additive for high-temperature lubricating oils | Dissolved directly into mineral or synthetic base oils for applications such as gear oils and heat-transfer oils, enhancing oxidation stability under elevated-temperature operating conditions and extending service life |
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (purity) | HPLC-UV | Quantification based on peak area comparison against a certified reference standard using UV detection at 280 nm. |
| Melting Point | Capillary Melting Point Apparatus | Determination of temperature range at which solid transitions to liquid, following ASTM D1565. |
| Appearance | Visual Inspection | Assessment of physical state and color under controlled lighting against established reference standards. |
| Moisture Content | Karl Fischer Titration | Volumetric or coulometric titration measuring water content via iodine-sulfur dioxide reaction in pyridine-methanol medium. |
| Ash Content | Gravimetric Analysis (Ignition at 550 C) | Residue mass after high-temperature combustion expressed as weight percent of original sample. |
| Heavy Metals (as Pb) | AAS (Flame or Graphite Furnace) | Atomic absorption measurement of metal concentration after acid digestion and matrix matching. |
| Residue on Ignition | Gravimetric Analysis (Ignition at 550 C) | Mass of non-volatile residue remaining after ignition, reported as weight percent. |
| Acid Number | Acid-Base Titration (NaOH in ethanol) | Neutralization of acidic impurities with standardized sodium hydroxide solution using phenolphthalein indicator. |
| UV Absorbance (280 nm) | UV-Vis Spectrophotometry | Measurement of absorbance in ethanol solution at specified wavelength to assess chromophore integrity and purity. |
| Volatile Matter | Thermogravimetric Analysis (TGA) or Oven Drying | Weight loss upon heating at 105 C for 2 h, expressed as percent of initial mass. |
| Particle Size Distribution | Laser Diffraction | Analysis of scattered light intensity patterns to determine size distribution in dispersed suspension. |
| Organic Volatile Impurities | GC-FID | Separation and quantification of residual solvents and volatile organics using flame ionization detection. |
| Test Item | Specification |
|---|---|
| Appearance | Off-white solid |
| Purity | >=98.0% (HPLC) |
| Water Content (KF) | <=0.5% |
| Melting Point | 52-56°C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=10 ppm |
| Residue on Ignition | <=0.1% |
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| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
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.