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Irganox® 1425 WL

Technical Datasheet | Supplied by BASF
Irganox® 1425 WL by BASF is a multifunctional phenolic antioxidant. It is a 1:1-combination of calcium-bis (((3,5-bis(1,1-dimethylethyl)-4-hydroxyphenyl)methyl)-ethylphosphonate) and polyethylene-wax. It is characterized by a very high extraction resistance, long term thermal performance and extreme low volatility. Provides thermo-oxidative stability to polyolefins. Irganox® 1425 WL shows good gas fading resistance and low color development during storage. Its performance is practically not influenced by alkaline additives and makes PP fibers brilliant. Its recommended usage levels are 0.10-0.25%.
Product Type
Antioxidants > Phenolics
Chemical Composition
1:1-combination of calcium-bis (((3,5-bis(1,1-dimethylethyl)-4-hydroxyphenyl)methyl)-ethylphosphonate) and polyethylene-wax
Physical Form
White to off- white
Product Status
Applications/ Recommended for
  • PP
  • Fibers/ Textiles/ Carpets > Fibers
  • Safety, regulation & environment > Low volatiles
Food contact approval
Labels/Agency Rating
Australia, Canada, China, EU, Japan, Korea, Philippines, USA

Irganox® 1425 WL Properties


Value & Unit
Test Condition
Test Method
Melting Point
90 - 300 °C
Flash Point
> 150 °C
Vapor Pressure
< 0.01 Pa
(At 20°C)

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