Trialkyl phosphite ester antioxidant that functions as a secondary stabilizer in a variety of polymers that do not require food contact.
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WESTON™ TDP is a trialkyl phosphite ester antioxidant that acts as a peroxide scavenger, providing color and processing stability in a variety of polymers and other materials such as coatings and lubricants.
WESTONTM TDP phosphite ester antioxidant is also excellent for use in ABS, polyethylene terephthalate, PET fibers, PVC, polycarbonate, and polyurethane formulations.
Appearance: Clear liquid
Specific Gravity @ 25 °C: 0.884-0.984
Acid Number: 0.05 mg KOH/g
Refractive Index @ 25 °C: 1.4530-1.4610
Phosphorus Content: 6.2%
Color (APHA, Pt/Co): 50 max
Molecular Weight: 502 g/mol
Flash Point (Closed Cup): 160 °C
Viscosity @ 38 °C: 11.6 cps
Density @ 25 °C: 0.89 g/mL
Vapor Pressure @ 5 mm Hg: 180 °C
Soluble: Most common aprotic organic solvents
Primary Chemistry: Triisodecyl Phosphite
Effective in a variety of materials including coatings and lubricants
Secondary stabilizer for use in polyurethane systems
Zero phenol phosphite antioxidant for use in polyester foams
Peroxide degradation of non-food polymers and formulations
Color and heat stability issues in paints, coatings, and lubricants
Polyols and polyurethane systems
Polyester flexible foams
ABS, polyethylene terephthalate, PVC, and polycarbonate systems
PET fibers
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