Antioxidant 168 CAS 31570-04-4


Basic Info

Product Name:

Antioxidant 168

Other Names:




Place of Origin:

Shandong, China

Brand Name:

Zhishang Chemical




White powder




Cool Dry Place



Chemical Properties:

White crystalline powder, melting point 180~186℃, soluble in benzene, toluene, gasoline, insoluble in water and alcohols.


  1. This product is a kind of phosphite antioxidant, which has excellent synergistic effect when used in combination with the main antioxidants 1010 and 1076.Antioxidant 168s compound is widely used in polyethylene, polypropylene, polycarbonate, etc.
  2. In the process of storage, processing and use of polymer materials, due to the effects of light, oxygen, heat and other factors, oxidative degradation often occurs, causing material deterioration, and causing materials to lose weather resistance and durability. In order to prolong the life of polymer materials and inhibit or delay the oxidative degradation of materials, antioxidants are usually used. Antioxidant 168 has good compatibility with Chemicalbook resin, and has the characteristics of low volatility, high heat resistance, resistance to extraction, no pollution and no discoloration. Antioxidant 168 is currently the best processing stabilizer in the country. Antioxidant 168 can effectively prevent thermal degradation of polymers (polyethylene, polypropylene, etc.) during the extrusion and injection molding process, so that the polymer maintainsAntioxidant 168s original mechanical properties and aging resistance.
  3. Antioxidant is an organic compound that can inhibit or delay the thermal oxidation of polymers and other organic compounds in the air. Usually,Antioxidant 168 is very effective to add a small concentration of 1% antioxidant. For example, foods are prone to oxidative deterioration, and a small amount of antioxidants can be added to extend their storage time. Polymer materials such as plastics, synthetic fibers and rubber are prone to thermal oxidative degradation reactions. The addition of antioxidants can maintain the excellent performance of the polymer materials and prolong the service life. The antioxidant should be added as close to the aging cycle as possible, for example, before the polymer is dried into powder at the end of the Chemicalbook. Antioxidant PL-440 is a phosphite antioxidant with excellent performance.Antioxidant 168can be used as a co-antioxidant and heat stabilizer for polymers. Antioxidant 168 is widely used in PVC, PET, ABS, polyolefin, nylon, PPO, PBT alloy, polystyrene and other polymers. Antioxidant 168can effectively improve the light stability, processing stability, mechanical strength, color stability and transparency of the product, and extend the life of the product. PL-440 has the special function of stabilizing the melt viscosity of high polymer. This product is non-toxic and can be used for food packaging materials
  4. An excellent phosphite antioxidant, white powder in appearance, easily soluble in organic solvents such as benzene, chloroform, cyclohexane, slightly soluble in ethanol, acetone, insoluble in polar solvents such as water and alcohol, slightly soluble In esters. Low toxicity, low volatility, high thermal stability, excellent hydrolysis resistance, and can effectively decompose hydroperoxides generated during thermal processing of polymeric materials. Antioxidant 168 has a good synergistic effect when used together with hindered amine antioxidant 1010 and Chemicalbook 1076, which can improve the stability of polymer materials during thermal processing. There are more than a dozen kinds of preparations compounded with phenolic antioxidants, which are widely used in polyolefins (such as polyethylene, polypropylene) and olefin copolymers, polyamides, polycarbonates, PS resins, PVC, engineering plastics, and rubber And petroleum products, ABS resin and other polymer materials. Compounds can also be used for adhesives
  5. This product is a low volatile organic synthetic antioxidant and polymerization inhibitor, which is widely used in the synthesis and processing of various plastics such as polypropylene, polyethylene, ABS, polycarbonate fiber and polyester resin.

About Us

The production base is located in Zhangqiu chemical industry park and Tai’an high-tech chemical industry park. laboratory and workshop in strict accordance with the GMP standard and the product fit national ISO9001 and ISO2000 standards.

“Zhishang” products are exported to Europe, North and South America, the Middle East, Asia Pacific and Africa area, so as to establish a long-term and stable cooperation relationship with customer in the world.

Company Info
  • Business Type: Manufacturer
  • Product Range: Additive , Chemical Auxiliary & Catalyst , Organic Chemicals
  • Products/Service: Organic Intermediate,Inorganic Chemistry, APIs, Dyestuffs And Pigments, Fragrance And Spices, Food Additives
  • Total Employees: 51~100
  • Capital (Million US $): 10000000RMB
  • Year Established: 2016
Production Capacity
  • No. of Production Lines : 8
  • No. of QC Staff : 5 -10 People
  • OEM Services Provided : yes
  • Factory Size (Sq.meters) : 3,000-5,000 square meters
  • Certificate: ISO9001 , CE , GMP , API , MSDS
  • Factory Location : Diao Town Industry Park, Zhangqiu City, Jinan City, Shandong Province, China.


Pre-Sales Service

* Prompt reply and 24 hours online, professional team to provide best price and high quality product.

* Sample testing support.

* Every batch of products will be tested to ensureits quality.

*The packing also can be according the customers` requirment.

*Any inquiries will be replied within 24 hours.

*we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate. If your markets have any special requirements, let us know.


After-Sales Service

*The fact of logistics information monitoring.

* Any questions about the product can be consulted at any time.

*Product has any problem can return.


Do you accept sample order?

We will make samples before mass production, and after sample approved, we’ll begin mass production. Doing 100% inspection during production, then do random inspection before packing.



You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.

What’s your MOQ?

Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge is 100% paid.

Do you supply product report?

Yes. We’ll give you product analysis report before shipping.

  Is there a discount?

Different quantity has different discount.


1. ≤50kg, Express delivery recommended, usually called as DDU service;

2. ≤500kg, Air shipping recommended, usually called as FOB, CFR, or CIF service;

3. >500kg, sea shipping recommended, usually called as FOB, CFR, or CIF service;

4. For high value products, please select air shipping and express delivery for safe.

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