Tris-(Nonylphenyl) Phosphite
Industrial Applications
Tris(Nonylphenyl) Phosphite (TNPP) is widely used as a secondary antioxidant and heat stabilizer in plastics, particularly in polyolefins, PVC, and rubber, where it protects against thermal degradation and prevents discoloration during processing. It also serves as a stabilizer in lubricants, adhesives, and coatings, often in combination with primary antioxidants for synergistic effects.
Physical Properties
Tris(Nonylphenyl) Phosphite (TNPP) is an organophosphite antioxidant typically appearing as a clear to pale yellow viscous liquid with a mild characteristic odor. It has a high boiling point (above 200 °C), low volatility, and is insoluble in water but soluble in most organic solvents.
Grade
- Industrial
Other Names
- Tris(4-nonylphenyl) Phosphite
Form
- Liquid
Abbreviations
- TNPP