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Antioxidant 168

Pubdate：2012/03/04 INDUSTRIES PLASTIC PRODUCTS AND SERVICES RUBBER Rubber Chemical views：3595

Trade name  Antioxidant 168

Chemical Name   Tri(2,4-Ditertrabutylphenyl)phosphiteester

Molecular Formula  C42H63O3P

Molecular Weight  646.94

CAS No.  31570-04-4

Specifications  HG/T3712-2010

Item

 Specifications

High grade

Appearance

White powder or granule

Assay (%) Min

99.0

Melting Point (℃)

183.0～187.0

Volatilizing  (%)Max

0.1

Clarity of solution 2.5g/25ml TOL

Clear solution

Acidity MgKOH/g Max

0.10

Color of solution at 425nm  (%) Min

98.0

Color of solution at 500nm  (%) Min

98.0

Content of 2,4 DTBP (%)Max

0.20

Degradation

Pass

Properties  It is easily soluble in such organic solvents as benzene, chloroform, cyolohexane etc., sightly soluble in esters, but not in polar solvents, such as water, alcohols etc. Low toxicity, good thermostability, non-hydrolyzable, etc..

Applications  Antioxidant 168 is a secondary antioxidant with excellent resistance to extraction by water, low volatility and high heat stability. It can effectively decompose hydroperoxides produced during the processing of polymeric materials. It isn’t usually used alone,compounded with hindered phenolic primary antioxidants such as Antioxidant 1010, to improve thermostability of polymer during the processing. There are over ten kinds of blends of Antioxidant 168 with phenolic antioxidants, widely use in the polymer materials, such as polylefins (eg. Polyethylene, polypropylene etc.), polyamide, polycarbornate, ABS and so on. The product has good effect with HALS

Storage  Stable in property. No special requirement but keep ventilation and away from water and high temperature.

Packing  25kg net paper bags lined with polyethylene film bags

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