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Antioxidant 445

Antioxidant 445
Antioxidant 445
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Product Code : 55
Product Description

We are one of the primary manufacturers, exporters and suppliers of excellent quality Antioxidant 445. Our provided powder is precisely formulated under the extreme suitable conditions by utilizing quality approved chemical substances in tune with the defined market standards of quality. This chemical is non-toxic and is used in the manufacturing of electric wire, cable and packaging material for food. In addition to this, our valuable customers can avail this Antioxidant 445 from us in various packaging options at nominal rates.


  • Accurate composition

  • Resistant against heat and aging

  • Better chemical stability

  • Safe to use

Chemical Composition: 4,4'-Bis(a,a-dimethylbenzyl) diphenylamine

Physical Properties

Appearance: White powder
Sp Gr. at 25oC: 1.14 (Typical)


  • 445 is heat resistant (slightly staining) antioxidant. It is a slightly staining & discoloring antioxidant being stable at high temperature, is used for protection against heat and oxidative degradations in NR and synthetic rubbers including BR, SBR, NBR, CR and EPDM covering uses in beltings, hoses, seals, gaskets and other automotive/industrial rubber products. In combination with synergistic antioxidants it provides an extremely effective antioxidant system for EPDM and NBR compounds for high temperature applications. Often used as aqueous dispersions in latex compounds (SBR, Carboxylated SBR and NR) for improving resistance to heat and embrittlement during aging with as little 0.5 phr in the compound. Typical dosages in rubber vary from 1 to 3 phr depending on the application envisaged.

Storage and Handling:

  • Store in a cool, dry & well-ventilated place, local exhaust recommended. Keep container closed when not in use.
  • No special handling precautions are necessary. Normal precautions to avoid contact with skin and eyes should be followed. For eyes, flush with plenty of water and seek medical advice.

Typical Analysis
ASTM Test method
Melting Point (oC) - Initial
98 min
D 1519
Melting Point (oC) - Final
102 max
D 1519
Loss on drying 1hr/70oC (%)
0.3 max
D 4571
Ash Content (%)
0.3 max
D 4574
Solubility Insoluble in water.Soluble in acetone/toluene

Packaging: 25 Kg. in HDPE lined Paper Bags


Contact Details
15, 4th Floor, Free School Street, Kolkata - 700016, West Bengal, India
Mr. Siddharth V. Jeloka (C.E.O.)
Mobile :08037265614
Phone :08037265614
Fax :91-33-65351418

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