Our products

Zhiyi has been providing high-quality products and anti-yellowing solutions to polymer industries for 24 years. The products are widely used in polyurethane, rubber, plastic, lubricating oil, resin, coating, etc.

YIPHOS® 4025

  • Chemical Name:

    4,4'-butylidene-bis(3-methyl-6-tert-butylphenyl) alkyl(C13)-phosphite

  • Molecular Formula:

    C78H144O6P2

  • Molecular Weight:

    1240

  • CAS :

    13003-12-8

Physical Properties

  • Appearance

    Light Yellow Clear Liquid

  • Phosphorus Content (%)

    4.8

  • Color (APHA)

    <100

  • Acid Value (mg KOH/g)

    ≤0.10

  • Refractive Index (25℃)

    1.4880-1.4950

  • Specific Gravity (25℃)

    0.940-0.960

TGA(℃,% MASS LOSS)

  • Weight Loss (%)

    5

    10

    50

  • Temperature (℃)

    260

    296

    371

Applications

YIPHOS® 4025 is a nonylphenol-free phosphite antioxidant, can be used in polyole-fins,rubber and PVC. YIPHOS® 4025 is a multifunctional antioxidant for organic polymers. It exhibits good antioxidant effects when used at typical level of 0.1 to 3.0 wt%, improving the color, light stability and clarity of polymers, especially com-bined with primary metal stalibilizers and epoxy stabilizers. When used in rubber, 4025 shows more excellent color improvement than TNPP.
Recommended dosage:0.05~1.0%

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