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Trialkyl phosphite ester antioxidant that functions as a sulfur deactivator and improves antifriction and antiwear characteristics in lubricants.


374.78lb Drum



Product Overview

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.

Product Specifications

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

Features & Benefits

Improves antifriction and antiwear characteristics in lubricants
Sulfur deactivator


Polyester fibers

Related Products

SI Group Phosphite Antioxidants

SI Group Phosphite Antioxidants are solid and liquid secondary antioxidants that work in a variety of systems.

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