Organic Phosphite PVC Co-Stabilizer
CAS Number: 31570-04-4
Organic Phosphite Co-Stabilizers are essential components in PVC stabilizer packages, functioning as hydroperoxide decomposers and HCl scavengers to extend thermal stability. They work synergistically with metal soap stabilizers, improving color retention during processing and long-term weathering. Commonly used phosphites include diphenyl isodecyl phosphite and trisnonylphenyl phosphite.
Technical Specifications
| appearance | Colorless to light yellow liquid |
| color (APHA) | ≤50 |
| moisture (%) | ≤0.1 |
| acid value (mgKOH/g) | ≤0.2 |
| phosphorus content (%) | 8.0–12.0 |
Applications
- Rigid PVC pipe and fitting compounds
- PVC window profile formulations
- Flexible PVC cable compounds
- PVC foam board and sheet
- Co-stabilizer in Ca-Zn and Ba-Zn systems
Key Features
- Synergistic co-stabilizer for metal soap systems
- Excellent HCl scavenging and color retention
- Improves long-term thermal stability of PVC
- Compatible with wide range of PVC stabilizer packages
Send Inquiry
CAS Number
31570-04-4
Category
Plastic / Rubber AdditivesAvailability
In StockSample
Dispatched within 5 days