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Home > Product > Chemicals > Antioxidant HJTEC-168
Antioxidant HJTEC-168
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Name :                              Antioxidant HJTEC-168
Chemical Name :               Tris-(2,4-di-tert-butyl phenyl) phosphite 
Molecular Formula :           C42H63O3P
Molecular Weight :             646.9
 
 
Specification:
 
Appearance                                 White free-flowing powder
Assay                                         99.0% min.
Melting range ( 0C )                      183.0-186.0
Volatiles                                      0.3% max
Acid value (mgKOH/g)                   0.3 max
Hydrolyze time (H)                       14 min.
2,4-DTBP content                         0.2% max
Transmittance
425 nm                                        98% min
500 nm                                        98% min
Clarity of solution
( 10g in 100ml toluene)                 Clear (at room temp)
 
Packing                                      25kgs cardboard drum lined with PE bags.
 

Chemical and Physical Properties:                                                                             
HJTEC-168 antioxidant is white free-flowing powder, soluble in benzene, toluene and gasoline, insoluble in water and alcohol. It is an organophosphite of low volatility and is particularly resistant to hydrolysis. It protects polymers which are prone to oxidation, during the processing steps (compounding / pelletizing, fabrication and recycling) from molecular weight change (e.g. chain scission/ crosslinking) and prevent discoloration.

 
Applications :

HJTEC-168 antioxidant is a thermally and hydrolytically stable phosphite processing stabilizer. As a secondary antioxidant, HJTEC-168 antioxidant reacts during processing with hydroperoxides formed by autoxidation of polymers preventing process induced degradation and extending the performance of primary antioxidants.

HJTEC-168 antioxidant can be used in combination with phenolic antioxidants, acid neutralizers,UV stabilizers, and other functional additives.
 
The application range of HJTEC-168 antioxidant,synergistically combined with other Anti-oxidants,comprises polyolefins and olefin-copolymers such as polyethylene(e.g. HDPE, LLDPE), Polypropylene, Polybutene and ethylene-vinylacetate copolymers as well as polycarbonates and polyamides. The blends can also be used in polyesters,styrene homo-and copolymers, adhesives and natural and synthetic tackifier resins, elastomers such as BR.SEBS,SBS, and other organic substrates.
 

Storage and Packing:

In accordance with good industrial practice, handle with care and prevent contamination of the environment.Avoid dust formation and ignition sources. Storded in cool, dry places. Avoid moisture, rain & sunshine. Keep the packing complete.
Shelf time: one year.

 
Remarks:

CAS NO.:3 1570-04-4
 
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