Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Rianlon RIANOX 168 Antioxidant

Rianlon RIANOX 168 Antioxidant is a highly effective phosphite-based stabilizer widely used in polyolefins, ABS, and engineering plastics. It offers exceptional melt-processing stability, low volatility, and synergistic performance with phenolic antioxidants. Trusted for consistent quality and regulatory compliance (REACH, FDA), it enhances thermal resistance and extends product service life across demanding industrial applications.
  • rianlon rianox 168 antioxidant_210d3520
  • rianlon rianox 168 antioxidant_210d3520

Features Of Rianlon RIANOX 168 Antioxidant

  1. High molecular weight phosphite antioxidant offering exceptional hydrolytic stability.

  2. Excellent processing stability for polyolefins during extrusion, injection molding, and blow molding.

  3. Synergistic performance when combined with hindered phenolic antioxidants (e.g., Irganox 1010).

  4. Low volatility and minimal plate-out, ensuring clean operation in high-temperature polymer processing.

  5. Non-staining and non-discoloring—preserves clarity and color integrity in sensitive applications.

Typical Applications Of Rianlon RIANOX 168 Antioxidant

  1. Polypropylene (PP) fibers and spunbond nonwovens.

  2. Polyethylene (PE) films, including blown and cast grades for packaging.

  3. Automotive interior components requiring long-term thermal aging resistance.

  4. Food-contact compliant polyolefin containers and closures.

  5. Medical-grade polypropylene devices subjected to gamma or steam sterilization.

Specifications Of Rianlon RIANOX 168 Antioxidant

Chemical TypeTris(2,4-di-tert-butylphenyl) phosphite
Product FormWhite crystalline powder
AppearanceFree-flowing, odorless granules or fine powder
Melting Point190–195 °C
Assay (by HPLC)≥ 99.0%
Loss on Drying≤ 0.1%
Heavy Metals (as Pb)≤ 5 ppm
Primary ApplicationsStabilizer for polyolefins, especially PP and HDPE


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