UV 320, Tinuvin 320, CAS 3846-71-7
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%.
Handing and safety:
>For additional handing and toxicological information, please consult us for Maternal Safety Date Sheet
Package:
20/25 KG cartons or drums