Trade Name | Ultraviolet Absorbent UV-328 | |
Chemical Name | 2-(2'-Hydroxy-3',5'-di-tert-pentylphenyl)-benzotriazole | |
CAS NO. | 25973-55-1 | |
Molecular Formula | C22H29N3O | |
Structural Formula | ||
Appearance | Light Yellow Powder | |
Melting Point | ≥ 81°C | |
Volatile | ≤0.5% | |
Ash | ≤0.05% | |
Content | ≥99% | |
Transmittance | 460nm≥97%; 500nm≥98% | |
Application & Usage | It is a pale yellowish powder melting point 81°C, soluble in benzene, toluene, ethyl acetate and petroleum ether, slightly soluble in ethyl alcohol and methyl alcohol insoluble in water. It is a excellent ultraviolet absorbent, UV max: 345nm, solubility for polymer is good, volatility is little, mainly used for PE, PP,PS,PVC, poly ester and ABS resins, and so on. |
Ultraviolet Absorbent UV-328