BX UV 328
2-(2′-Hydroxy-3′, 5′-di-tert-amylphenyl) benzotriazole
| Formula | C22H29N3O |  |
| Molecular Weight | 351.5 | |
| CAS# | 25973-55-1 |
Physical Properties:
| Appearance | Yellowish powder or granule |
| Melting Point | 79-87℃ |
| Ash | ≤0.1% |
| Loss On Drying | ≤0.5% |
| Purity | ≥99%(HPLC) |
| Transmittance | 460nm≥96% 500 nm≥97% |
Applications:
BX UV 328 is a high-performance UV absorber that can effectively absorb 270-340 nm UV light. Its performance is similar to that of UV-326 and UV-327, while better compatibility with the resin, low thermal evaporation and high washing resistance. Tinuvin 328 is suitable for polyolefin (especially polyethylene), polyester, styrene polymer, polyamide, polymethyl methacrylate, polycarbonate, elastomer and other polymers. Replace basf tinuvin 328.
Recommended dosage: PS 0.2-0.5%, PE 0.2-0.4%, PC 0.15-0.3%, PVC 0.2-0.5%, Polyester 0.3-0.5%.
Handling and safety:
>For additional handling and toxicological information, please consult us for Material Safety Data Sheet.
Package:
20/25KG cartons or drums.