CAS 31570-04-4 Antioxidant 168 - Catalysts / Alfa Chemistry

Synonyms

Phenol,2,4-bis(1,1-dimethylethyl,phosphite(3:1)

Molecular Weight

646.92

Molecular Formula

C42H63O3P

Purity

98%

Appearance

White solid

Application

Antioxidant 168 serves as a secondary antioxidant, offering notable resistance to water extraction, low volatility, and high thermal stability, making it particularly effective in breaking down hydroperoxides formed during the processing of polymeric materials. It is most commonly used in combination with primary antioxidants like hindered phenols, such as the 1010 type, to enhance the thermal stability of polymers during manufacturing. Commonly applied to materials like polyethylene, polypropylene, polyamides, polycarbonate, and ABS, Antioxidant 168 is found in various polymer stabilizer blends. While primarily serving to stabilize polymers, it can also be used in conjunction with light stabilizers as needed. Additionally, Tris(2,4-di-tert-butylphenyl) phosphite, an intermediate form of Antioxidant 168, plays a role in catalysis and metallation processes, making it versatile in various synthetic applications, including its function as a ligand in numerous catalytic cycles.

December 19, 2024

Reliable Antioxidant for Polymer Stability

Antioxidant 168 from Alfa Chemistry performed excellently in my polymer research. By combining it with a phenolic primary antioxidant, it enhanced thermostability and decomposed hydroperoxides effectively-crucial for polyethylene processing. Highly recommend for polymer stabilization projects.