Select Your Region
- Manufacturer: SI Group
- Product Line: SI Group Phosphite Antioxidants
- Product: WESTON™ Liquid Phosphite Antioxidants
- Industries: Adhesives | Elastomers | Metal Processing & Fabrication | Plastics
- Authorized Countries: Canada | Mexico | United States
WESTON™ TNPP
Fulfilled By ChemPoint
SKU
0118295
WESTON™ TNPP is a versatile phosphite stabilizer that improves color, processing stability, and the end use of a variety of polymers; similar to WESTON® 399, but with a higher flash point.
Package Sizes
Quantity
Documents
Specifications
Appearance: Clear liquid
Specific gravity @ 25°C: 0.980–0.992
Color (Pt-Co): 75 max
Flash point (closed cup): 207°C
Density @ 25°C: 0.98 g/mL
Vapor pressure @ 6 mm Hg: 245°C
Molecular weight: 688 g/mol
Viscosity @ 60°C: 250 cps
Acid number: 0.05 mg KOH/g
Refractive index @ 25 °C: 1.5250–1.5280
Free nonylphenol content: 3.0%
Phosphorus content: 4.1%–4.5%
Chlorine content: <25 ppm
Free phenol content: <50 ppm
Specific heat: 0.4 Mcal/mg°C
Thermal conductivity: 0.0003 Gcal/sec(cm²)(°C/cm)
Autoignition temperature: 439°C;
Primary Chemistry:
Trisnonylphenyl phosphite
Manufacturer
Product Line
Authorized Countries
Canada
Mexico
United States
Overview
WESTON™ TNPP is a cost-effective phosphite antioxidant that improves color and processing stability during recovery, drying, compounding, processing, and end use. It has low nonylphenol content, is approved for food contact, and synergizes when used alongside hindered phenolic antioxidants.
Features & Benefits
- Low color
- Low nonylphenol content
- Synergizes when used alongside phenolic antioxidants
- Food contact approvals
Problems Solved
Low flashpoint of liquid phosphite antioxidants
High level of nonylphenols in liquid phosphite antioxidants
Incompatibility or synergy issues of phosphite antioxidants with hindered phenolic antioxidants
Applications
High-density polyethylene
Linear low-density polyethylene
Related Chemistries
Plastics
Related End Markets
Elastomers
Metal Processing & Fabrication
Plastics
Related Functions
Adhesives
SI Group Phosphite Antioxidants Articles
SI Group WESTON™ Liquid Phosphites
The portfolio of WESTON™ liquid phosphite antioxidants offers excellent synergism, improved color, and processing stability and offers a variety of food contact approvals depending on your plastic applications.
SI Group WESTON™ Phosphite Antioxidants
The SI Group portfolio of WESTON™ phosphite antioxidants protects plastics and elastomers from peroxide decomposers and offers excellent synergism with primary antioxidants, such as hindered phenols.
SI Group Additives for Packaging Plastics
SI Group offers a broad range of plastic additives for the stability and durability of your packaging plastics. Learn more today!
Stabilization and Processing of Recycled Plastics
Compounders and recyclers face multiple challenges with the stabilization and processing of recycled plastics. Learn more and explore our solutions
ChemPoint Is Here to Help
Are you in the correct region?
We’ve detected that you are located in a different region than the region selected on the website. Would you like to change your region?
Current Region: English - United States
