UV-234, an ultraviolet absorber
| Chinese name | 2-(2-hydroxy-3,5-bis(a,a-dimethylbenzyl)phenyl)benzotriazole |
| Molecular formula | C30H29N3O |
| CAS NO. | 70321-86-7 |
| Performance and use | UV-234 is a light yellow powder with melting point of 139.5-141℃. It is an excellent light stabilizer and suitable for PP, TPE, hard PVC, POM, PA, PC, PBT/PET, PMMA and so on. |
Qualification:
| Appearance | light yellow powder |
| Melting point | ≥ 139.5-141℃ |
| Volatiles | ≤ 0.5% |
| Ash | ≥0.05% |
| Purity | ≥99% |
| Transmittance | 460nm ≥97%; 500nm ≥98% |
| Packaging | 25kg/barrel |
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