Ultraviolet light absorber UV-531

 
Chemical name:2-Hydroxy-4-n-octoxybenzophenone
Molecular Formula:C21H26O3
Molecular Weight:326
CAS NO:[1843-05-6]
Appearance:Light yellow crystal
Assay: 99%
Melting point:47-49
Loss on drying: 0.5%
Ash: 0.1%
Light Transmittance:
Wavelength nm Printing opacity rate %
450 >=90
500 >=95
Toxicity:Toxicity is low. Rat LD50>12g/kg body weight taking orally.
Use:As the ultraviolet absorption agent,it is chiefly used in polyolefin,and it is available to alkene base resin,polystyrene,polyester and polyamide etc too.The max.absorbing wavelength range is 300-375nm.The general consumption is 0.2-0.6%.
Storage and transportation:The chemical stability is good.It can be stored and transpoted according to the general chemical matter regulation.
Packing: The barrel packaging of cardboard , net weight 25Kg.


 
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