ULTRAVIOLET ABSORBER （BP-12）;UV531

Product Name（Include Alias）：2-hydroxy-4-n-octoxybenzophenone; Benzophenone-12; UV absorber BP12。
Model No:
Purity：99%
CAS No：1843-05-6
EINECS No：217-421-2
Molecular Formula：C21H26O3
Molecular Weight：326.4293
Technical Indicators：
1、Appearance：Light yellow crystal or light yellow fine powder
2、Melting Point：47~49℃
3、Ash Content：0.1%max
4、Loss On Drying：0.5%max
5、Transmittance：  450nm   90%min
500nm   95%min
Package：25kg / Cardboard barrel lined with plastic film bag。
Application: Ultraviolet absorber UV-531 is an anti-aging additive, which can absorb ultraviolet light of 240-340 nm. It has the characteristics of light color, non-toxic, good compatibility, small mobility and easy processing. It has the greatest protective effect on the polymer and helps to reduce the color, delay yellowing and block the loss of physical properties. It is widely used in PE, PVC, PP, PS, PC, plexiglass, polypropylene fiber and vinyl acetate. Moreover, it provides good light stability for dry phenolic and alkyd varnish, polyurethane, acrylic, epoxy and other air drying products, as well as automotive finishing paint, powder coating, polyurethane and rubber products. Dosage: 0.1% - 0.5%。