Benzotriazole Based Ultraviolet Absorbers
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2-(2'-Hydroxy-3',5'-di-t-butylphenyl)benzotriazole.
Synonym:2-benzotriazol-2-yl-4,6-di-tert-butylphenol
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PowerSorb™ 320 is a strong absorber of ultraviolet radiation and has a high degree of photostability - photochemical energy absorbed in the ultraviolet region is dissipated as thermal energy.
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| Chemical Name: |
2-(2'-Hydroxy-3',5'-di-t-butylphenyl)benzotriazole |
| CAS No.: |
3846-71-7 |
| EINECS No.: |
223-346-6 |
| Formula: |
C20H25N3O |
| Molecular
Weight: |
323 |
| Melting Range: |
152-155°C |
| Volatile Loss (%): |
Max.0.5 |
| Color of Solution 460nm (%): |
Min.97 |
| Color of Solution 500nm (%): |
Min.98 |
| Appearance: |
White Powder |
| Ash (%): |
Max.0.1 |
| Min. Purity: |
99% |
PowerSorb™ 320 is recommended for use in styrenics, vinyls, polycarbonates, polyesters and acrylics the normal use level in plastics ranges from 0.2 to 0.8%.
PowerSorb™ 320 is highly effective in stabilizing coatings such as urethanes and nitrocellulose in coatings applications, the use levels range from 0.5 to 2.0%.
PowerSorb™ 320 can be used in combination with phenolic & phosphite antioxidants, and HALS to optimize performance in outdoor use. |
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PowerSorb™ 320 is supplied in 25kg carton box or 50kg fiber drum.
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