WESTON™ PDDP
WESTON™ PDDP phosphite ester is an alkyl-aryl phosphite which can be used as a color and processing stabilizer in polycarbonate, polyurethanes, ABS polymers, coatings and PET fiber where regulatory approval for food contact is not required. It can also be used as a secondary stabilizer to improve color and heat stability in PVC.
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| Property Name | Value | Unit |
| Appearance | Liquid | -- |
| Color | Colorless, to, light yellow | -- |
| Evaporation rate | <Ether | -- |
| Flash point (DIN 51758) | 160 | °C |
| Odor | Phenol-like | -- |
| Relative density | 0.94 | -- |
| Relative vapor density | Heavier than air | -- |
| Solubility in water | Insoluble, hydrolyzes | -- |
| Specification Name | Value | Unit | Test Method | Test Condition |
| Acid No. | 0.05 max | mg KOH/g | -- | -- |
| Color (APHA , Pt - Co) | 50 max | -- | -- | -- |
| Density at 25°C | 0.94 | lb/gal | -- | -- |
| Flash Point | 182 | °C | -- | -- |
| Formula Weight | 438 | -- | -- | -- |
| Phosphorus Content | 7.1 | % | -- | -- |
| Refractive Index at 25°C | 1.4780-1.4810 | -- | -- | -- |
| Solubility in aprotic organic solvents | Soluble | -- | -- | -- |
| Solubility in water | Insoluble | -- | -- | -- |
| Specific Gravity at 25°C - 15.5°C | 0.938-0.947 | -- | -- | -- |
| Vapor Pressure at 190 °C | 5 | mm/Hg | -- | -- |
| Viscosity at 38°C | 12 | cps | -- | -- |
WESTON™ PDDP TDS | Technical Data Sheets | English
WESTON™ PDDP phosphite ester is an alkyl-aryl phosphite which can be used as a color and processing stabilizer in polycarbonate, polyurethanes, ABS polymers, coatings and PET fiber where regulatory approval for food contact is not required. It can also be used as a secondary stabilizer to improve color and heat stability in PVC.
Safety Data Sheets are available upon request | Safety Data Sheets
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