WESTON™ DPDP
WESTON™ DPDP phosphite ester is an alkyl-aryl phosphite which is used as a color and processing stabilizer in polycarbonate, polyurethanes, ABS polymers, and coatings where regulatory approval for food contact is not required. It is also used as a secondary stabilizer in polyvinyl chloride.
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| Property Name | Value | Unit |
| Appearance | Liquid | -- |
| Color | Colorless, to, light yellow | -- |
| Density at 25 °C | 1.02 | g/cm3 |
| Flash point (ASTM D 93) | 154 | °C |
| Odor | Phenol-like | -- |
| pH | 3 | -- |
| Solubility in organic solvents | Soluble | -- |
| Solubility in water | Negligible, hydrolyzes | -- |
| Vapor pressure at 170 °C | 6.7 | hPa |
| 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 | 1.03 | lb/gal | -- | -- |
| Flash Point | 154 | °C | -- | -- |
| Phosphorus Content | 8.3 | % | -- | -- |
| Refractive Index at 25°C | 1.5160-1.5190 | -- | -- | -- |
| Solubility in aprotic organic solvents | Soluble | -- | -- | -- |
| Specific Gravity at 25°C - 15.5°C | 1.022-1.032 | -- | -- | -- |
| Vapor Pressure at 5 mm/Hg | 170 | °C | -- | -- |
| Viscosity at 38°C | 10.3 | cps | -- | -- |
WESTON™ DPDP TDS | Technical Data Sheets | English
WESTON™ DPDP phosphite ester is an alkyl-aryl phosphite which is used as a color and processing stabilizer in polycarbonate, polyurethanes, ABS polymers, and coatings where regulatory approval for food contact is not required. It is also used as a secondary stabilizer in polyvinyl chloride.
Safety Data Sheets are available upon request | Safety Data Sheets
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