BX UV 320
Chemical Name:
2-(2′-hydroxy-3′,5′-di-t-butyl-phenyl)benzotriazole
| Formula | C20H25N3O |  |
| Molecular Weight | 323.4 | |
| CAS# | 3846-71-7 |
Physical Properties:
| Appearance | Yellowish crystalline powder |
| Melting Point | 152-156℃ |
| Ash | ≤0.1% |
| Loss On Drying | ≤0.3% |
| Purity | ≥99%(HPLC) |
| Transmittance | 460 nm≥97% 500 nm≥98% |
Applications:
UV 320 is an efficient light stabilizer, strong UV absorption and low volatility. It can effectively protect polyester and organic pigments from ultraviolet radiation, thereby protecting the appearance of molded objects, films, fibers, etc. Tinuvin 320 is suitable for polyvinyl chloride, unsaturated polyester and other polymers.
Recommended dosage: polyester 0.3-0.5%, PVC 0.25-0.5%, unsaturated polyester 0.2-0.5%.
Handling and safety:
>For additional handling and toxicological information, please consult us for Material Safety Data Sheet.
Package:
20/25 KG cartons or drums