High-efficiency phosphite-based secondary antioxidant with excellent hydrolytic stability.
Effective in suppressing thermal oxidation and color formation during polymer processing.
Compatible with a broad range of thermoplastics including polyolefins, engineering plastics, and elastomers.
Low volatility ensures minimal loss during high-temperature extrusion and molding operations.
Non-staining and non-migrating, supporting long-term stability in demanding end-use environments.
Polypropylene (PP) fibers and spunbond nonwovens.
Automotive interior components made from PP and TPO compounds.
Packaging films requiring clarity, heat resistance, and extended shelf life.
Medical-grade polyolefin tubing and containers processed via extrusion or injection molding.
Recycled polyolefin formulations where oxidative degradation control is critical.
| Chemical Type | Triphenyl phosphite (TPP) |
| Product Form | White crystalline powder |
| Appearance | Free-flowing white to off-white crystalline solid |
| Melting Point | 70–75 °C |
| Assay (by GC) | ≥ 99.0% |
| Moisture Content | ≤ 0.1% (by KF titration) |
| Solubility | Soluble in common organic solvents (e.g., toluene, xylene); insoluble in water |
| Primary Applications | Secondary antioxidant for polyolefins, engineering plastics, and elastomers |
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E-mail: wangxingqiang@ericwchem.com
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