2-(2′-Hydroxy-3′,5′-di-tert-pentylphenyl)-benzotriazole CAS 21615-49-6
UV-328 is an ultraviolet light absorber (UVA) of the hydroxyphenylbenzotriazole class, which imparts outstanding light stability to plastics and other organic substrates.
| ITEM | STANDARD | |
| Appearance | light yellowish powder or pellet | |
| Melting Point (°C) | 81 min | |
| Ash (%) | 0.05 max | |
| Volatile matter (%) | 0.5 max | |
| Transmittance | 440 nm (%) | 97 min |
| 500 nm (%) | 98 min | |
| Assay (%) | 99.0 min | |
UV-328 is a highly effective light stabilizer for a variety of plastics and other organic substrates. Its use is recommended for the stabilization of styrene homo- and copolymers, acrylic polymers, unsaturated polyesters, polyvinylchloride, polyolefins, polyurethanes, polyacetals, polyvinyl butyral, elastomers, and adhesives.
In 15/20/25/500kg bags/cartons on pallet or fiber drum
2-(2'-Hydroxy-3',5'-di-tert-pentylphenyl)-benzotriazole CAS 21615-49-6
2-(2'-Hydroxy-3',5'-di-tert-pentylphenyl)-benzotriazole CAS 21615-49-6
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