Trialkyl phosphite ester antioxidant that functions as a sulfur deactivator and improves antifriction and antiwear characteristics in lubricants.
WESTON™ TLP is a trialkyl phosphite ester which can be used as a stabilizer in polymers that do not require food contact. WESTON® TLP also functions as a sulfur deactivator, and reduces friction and wear in lubricants.
Appearance: Clear liquid
Specific Gravity @ 25 °C: 0.866-0.881
Acid Number: 0.05 mg KOH/g
Refractive Index @ 25 °C: 1.4530-1.4580
Phosphorus Content: 5.3%
Color (APHA, Pt/Co): 50 max
Molecular Weight: 586 g/mol
Flash Point (Closed Cup): 165.56 °C
Viscosity @ 38 °C: 16.0 cps
Density @ 25 °C: 0.88 g/mL
Vapor Pressure @ 5 mm Hg: 190 °C
Soluble: Most common aprotic organic solvents
Insoluble: Water
Primary Chemistry: Trilauryl Phosphite
Improves antifriction and antiwear characteristics in lubricants
Sulfur deactivator
Polyester fibers
SI Group's Morgantown, WV facility is the world’s largest phosphite production facility.
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SI Group's extensive portfolio of speciality antioxidants holds the solution to your tpo formulating challenges
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WESTON™ is a collection of high-purity liquid and solid phosphite antioxidants, and liquid phosphite esters.
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