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Structure

HG-626

Name

双(2,4-二叔丁基苯基)季戊四醇二亚磷酸酯

Bis-(2 ,4-di-tert-butyl phenyl ) Pentaerythritol Diphosphite

Molecular Weight
604.7
Molecular Formular
C33H50O6P2
CAS No.
26741-53-7

Product Details

 

Specification
Appearance
Melting Range, (℃)
Solubility
Acid Value, (mgKOH/g)
Content of 2,4-Di-Tert-Butylphenol, (%)
Main Content, (%)
Content of Effective Component, (%)
White powder 
170~180
≤1.0
≤1.0
≤1.0
≥96
≥98
Performance advantages and applications

Antioxidant HG-626 is a phosphite ester auxiliary antioxidant, generally used as the upgrade of antioxidant HG-168 products, characterized by anti-yellowing, high transparency, It is a low volatile organic synthetic antioxidant polymerization agent, widely used in polypropylene, polyethylene, ABS, polycarbonate fiber and polyester resin and other kinds of plastic synthesis and processing. For many applications, it improves the anti-fading performance of polymer in flue gas. Its high performance and low input can form a more efficient formular. Compared with other equivalent phosphite antioxidants, it has higher content of phosphorus. It can be used as light resistant stabilizer, e.g., synergist of benzotriazole and benzophenone. This product commonly is not used alone. It is usually used in combination with phenolic antioxidants, such as HG-1010, which can improve the thermal stability of polymer during thermal processing. It can be widely applied in PE, PP, PS polyamide, polycarbonate, ABS and other polymer materials. Reference dosage: General dosage is 0.1~0.3%.

Packaging

The product is packed inside with polythene plastic bag and outside with brown paper bag or carton, with net weight of 25kg each, 1000kg/stock. Other packaging methods can also be adopted according to customers’ requirements.

Transportation

This product can be transported by general means of transportation, avoid sun and rain during transportation, light loading and light unloading during transportation, and have rain and snow protection measures.

Storage

his product should be stored in a ventilated, cool and dry warehouse with a cushion to prevent moisture. Keep away from ignition, strong acids, bases and strong oxidants.

Shelf Life
The storage period of the products shall be 6 months from the date of production under the transportation and storage conditions stipulated in this standard.