Pentaerythritol Tetrakis
Antioxidant 1010, AO-1010, Irganox 1010, Tetrakis(methylene(3,5-di-tert-butyl-4-hydroxyhydrocinnamate))methane.
- CAS
- 6683-19-8
- EC
- 229-722-6
- Sectors
- Plastics & Polymers, Rubber & Elastomers, Coatings, Adhesives, Sealants & Elastomers
Pentaerythritol Tetrakis (CAS 6683-19-8) is a sterically hindered phenolic antioxidant available as a white to off-white powder or granular solid, standardized to 98% purity, that inhibits free radical formation and prevents oxidative degradation, yellowing and embrittlement in polyethylene, polypropylene and ABS resins, rubber components and adhesives. It offers exceptional thermal stability, ensuring that plastics maintain their mechanical integrity and color during high-temperature processing.
This stabilizer is available in a 98% purity powder or granular form, providing long-term heat resistance for polyolefins like PE and PP. Its high molecular weight prevents migration and volatility, making it ideal for applications requiring FDA-compliant food contact safety.
By inhibiting the formation of free radicals, it extends the service life of finished goods in the automotive and construction sectors. It is compatible with most organic substrates and is often blended with phosphite-based secondary antioxidants to achieve synergistic stabilization effects.
Typical Properties
| Molecular formula | C73H108O12 |
|---|---|
| Molecular weight | 1177.63 g/mol |
| Form | neat |
| Color | White to Off-White |
| Melting point | 131.6 °C |
| Density | 0.57 g/cm³ |
| GHS signal word | Warning · Irritant / harmful |
| HS code | 29182900 |
| Grades available | Technical Grade |
Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.
Pentaerythritol Tetrakis
Applications
- Polymer Stabilization: Prevents yellowing and embrittlement in polyethylene (PE), polypropylene (PP), and ABS resins.
- Adhesive Manufacturing: Enhances the oxidative stability of hot-melt and pressure-sensitive adhesives during storage and use.
- Automotive Parts: Used in the production of interior and under-the-hood rubber components to resist thermal aging.
Safety & Risks
Generally considered low hazard. Avoid dust inhalation and ensure proper ventilation in processing areas. Recommended PPE includes dust masks, nitrile gloves, and safety glasses to prevent skin irritation.
Packaging
Available in 25 kg Kraft Paper Bags, 500 kg Big Bags (FIBC), and standard 20 kg boxes.