Antioxidant B-551

Identity：

Chemical name：50% Calcium diethyl bis[[[3,5-bis(1,1-dimethylethyl)-4-hydroxyphenyl]methyl]phosphonate]

50%  6,6’-di-tert-butyl-4,4’-thiodi-m-cresol

CAS NO.: 96-69-5 / 065140-91-2

Physical and Chemical properties：

Appearance：White Crystalline Powder

Volatility %：0.5Max

Cl % ：0.3 Max

Usage：

Antioxidant B551 is powerful antioxidant for use in applications requiring heat resistance. It is suitable for the protection of white and light-colored NR and synthetic rubber compounds, including latex formulations and adhesives, because of its low volatility,

It has significant advantage over more highly volatile antioxidants such as BHT and quinines. B551 provides excellent protection against degradation catalyzed by heavy metals. Additional uses of B551 include stabilization of NBR elastomers, ABS and polyolefins such  as PE,PP,EPM,EPDM.

It is regulated for use in articles in contact with food

Safety：Please see our MSDS.

Packing:Packing in 20kg PE bag and 25dags per pallet.

Storage：To be stored in cool and ventilated warehouse, avoid direct exposure to sunlight.