Antioxidant 168 (Irganox 168)
Antioxidant 168 (Irganox 168)
Antioxidant 168 (Irganox 168)
Antioxidant 168 (Irganox 168)

Antioxidant 168 (Irganox 168)

High-Performance Phosphite Processing Stabilizer  

Synergistic Antioxidant for Plastics – Prevent Thermal Degradation & Extend Product Lifespan  

Antioxidant 168 (CAS: 31570-04-4) is a hydrolytically stable phosphite processing stabilizer, widely used as a secondary antioxidant in combination with primary antioxidants (e.g., Irganox 1010). It effectively prevents hermos-oxidative degradation during plastic processing (e.g., extrusion, injection molding) and enhances long-term durability of finished products.

Key Benefits

Synergistic Effect: Boosts performance when paired with phenolic antioxidants (e.g., Irganox 1010).  

Hydrolysis-Resistant: Superior stability in humid environments vs. traditional phosphites.  

Broad Compatibility: Works with PP, PE, ABS, PA, PET, and engineering plastics.  

Regulatory Compliance: Meets FDA, EU 10/2011 (food contact), RoHS, and REACH standards.  

Technical Specifications

Property

Value

Chemical Name

Tris(2,4-di-tert-butylphenyl) phosphite

Molecular Weight

646.9 g/mol

Appearance

White crystalline powder

Melting Point

180–185°C

Phosphorus Content

4.7–4.9%

Solubility

Insoluble in water; soluble in toluene, acetone

Typical Dosage

0.1–0.5% (varies by resin and application)

Why It’s Preferred Over Alternatives

Less Yellowing: Minimal impact on polymer color vs. other phosphites.

Low Volatility: Suitable for high-temperature processing (up to 300°C).

Primary Applications

Food Packaging
Food Packaging

FDA-compliant for PP/PE films, containers.

Automotive
Automotive

Under-the-hood components, dashboards.

Electronics
Electronics

Electronics: Cable insulation, connectors. Fibers & Films: BOPP films, synthetic fibers.

Why Choose Us?

Premium Quality: Sourced from top-tier manufacturers (BASF-equivalent performance).  

Technical Support: Free formulation guidance for optimal additive ratios.  

Fast Shipping: Global logistics with COA, MSDS, and customs documentation.  

Cost-Effective: Competitive pricing for bulk orders (25kg/drum).  


Cost Savings

- Bulk shipments save 15-20% on freight  

- Inventory management support  

 

Ordering & Logistics

- MOQ 100 kg, bulk discounts available  

- Flexible payment terms  

- Global shipping by sea/air/land  

- Multiple packaging options  

- Stock available for quick shipment  

- Just-in-time delivery options  

FAQ

  • Q: Can Antioxidant 168 be used alone?

    No, it’s a secondary antioxidant. Pair it with a primary antioxidant (e.g., Irganox 1010/1076) for full protection.
  • Q: Is it safe for food-contact plastics?

  • Q: How does it compare to Antioxidant 626 or 627?

  • Q: What’s the shelf life?

  • Q: Do you offer samples?

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