UV ABSORBER
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Ultraviolet absorbent UV-531
Hangzhou caidie chemical co.,ltd. http://www.caidiechem.com | Updated:2013-06-08 | Source:  | Read:3981

Ingredients : 3 - hydroxy -4 - octyloxy benzophenone 
Formula : C 21 H 26 O 3 
Molecular weight : 326 
CAS NO. : 1843-05-6

 

Chemical Structure 


Sales Code : PS-531 
Technical Specifications : 
Appearance : light yellow crystalline powder
Content : ≥ 99% 
Melting Point : 47-49 ° C
Loss on drying : ≤ 0.5% 
Ash : ≤ 0.1%
Transmittance 


Wavelength  nm 

Transmittance  

450

≥ 90

500

≥ 95



Toxicity  non-toxic, rat oral  LD 50 = 12g/Kg  weight. 
Usage  As a UV absorber mainly for polyolefins can also be used resins, polystyrene, polyester, polyamide, such as plastic, the maximum absorption wavelength range  300-375nm  , general amount of  0.2-0.6%  . 
Solubility : 25 ° C  Unit : g/100mL solvent 

Solvent 

Acetone 

Benzene 

Methanol 

Heptane 

Ethanol  (95%) 

N-hexane 

Water 

Solubility 

74 

72 

40 

2.6 

40.1 

<0.5

 

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