Products

ULTROVIOLET ABSORBER UV-329

his product is white or light yellow powder. Its molecular weight is 323 while melting point  is 101-106℃. It can be dissolve in solvents such as styrene,benzene ,ethyl  acetate and chloroform .It can effectively absorb the ultraviolet light in band of 270-340nm. This product is a high performance and efficient anti-aging agent,  is widely used in terms of PE, PVC, PP, PS, PC, PP fiber, ABS resin, epoxy resin, ethylene-vinyl acetate fibers. And can be used in plastic containers and food packaging and other packaging materials, to provide them with good light stability. Dosage: 0.1-0.5% thinner products, thick products 0.05-0.2%.

 

Chemical name :        2-(2-Hydroxy-5-tert-octylphenyl)benzotriazole

Structure:

FORMULA. : C20H25N3O

MOL  WT. ;323.43

CAS NO.:3147-75-9

 

Quality Index:

 

INDEX
SPECIFICATION
APPEARANCE
White or light yellow powder
SCOPE OF MELTING POINT,℃
101-106
ASH CONTENT,%
0.10 max.
TRANSMITTANCE, %  
440nm                    
  97min.                 98min.
500nm
PURITY,%
                99min.

Storing:

This product should be stored in shady, cool and ventilating place, kept from wet and heat during storage and transportation.

Packing:

This product is packed in cartons with plastic lining or in compound paper bags with net weight of 25 kg. We can also pack according to our customers' requests.



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