UV ABSORBER
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Ultraviolet absorbent UV-329
Hangzhou caidie chemical co.,ltd. http://www.caidiechem.com | Updated:2013-06-08 | Source:  | Read:4043

Chemical name : 2 -  2'-  hydroxy- 5'-  t-octylphenyl) benzotriazole 
Formula : C 20 H 25 N 3  
Molecular weight : 323 
CAS NO. :3147-75-9 
Chemical Structure  
Sale Code : PS-9  
Appearance  white powder 
Content : ≥ 99%  
Melting Point : 80-83 ° C 
Loss on drying : ≤ 0.5%  
Ash : ≤ 0.1%  
Transmittance 

Wavelength  nm 

Transmittance  

440 

≥ 97

500 

≥ 99

Toxicity  non-toxic, rat oral  LD 50 = 10g/Kg  weight. 
Usage  As the ultraviolet absorber, the product is mainly used in polyolefins, polystyrene, PMMA, polycarbonate,  ABS  resin and the like. Dosage

Typically  0.1-1%  . 
Solubility : 25 ° C  Unit : g/100mL solvent 

Solvent 

Benzene 

Styrene 

Heptane 

Ethyl acetate 

Ethanol  (95%) 

Glycol 

Water 

Solubility 

39.2 

33.0 

7.4 

21.8 

0.6 

0

 

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