Products

ULTROVIOLET ABSORBER UV-326

This product is light yellow crystal powder. Its molecular weight is 315.8 while melting point is 137-141℃. It can be dissolved in organic solvents such as styrene, benzene and toluene. This product can effectively absorb the ultraviolet light in band of 270-380nm. It volatilizes little, has good compatibility with resin. It is mainly used in polyolefin, PVC, unsaturated polyester, PA, polyurethane, araldite, ABS resin and cellulose resin. It also can be suitable for natural rubber and synthetic rubber. The general using rate is 0.1-0.5%.

Chemical name  : 2-(2'-Hydroxy-3'-tert-Butyl-5'-Methyl Phenyl)-5- Chlorobenzotriazole
Structure:

CAS NO.:  3896-11-5

FORMULA. :C17H18ON3CL

MOL  WT:  315.8

PRODUCT STANDARD:  Q/12 HG 5509-2012

 

Quality Index:

 

INDEX
SPECIFICATION
APPEARANCE
Light Yellow Powder
SCOPE OF MELTING POINT,℃
137-141
ASH CONTENT,%
0.10 max
LOSS ON HEATING ,%                  
0.50 max
TRANSMITTANCE, %     425nm                            500nm
93min                  96min
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 20 kg. We can also pack according to our customers' requests.



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