Benzophenones Based Ultraviolet Absorbers
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2-Hydroxy-4-n-octoxybenzophenone.
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PowerSorb™ 531 is an ultraviolet light absorber (UVA) of the benzophenone class. It is effective in polyolefins, including low and high density polyethylene, polypropylene, olefin copolymers (EPR, EPDM, EVA), and other polymers including polyvinyl chloride, polyesters, natural and synthetic resins, polystyrene and ABS.
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| Chemical Name: |
2-Hydroxy-4-n-octoxybenzophenone |
| CAS No.: |
1843-05-6 |
| EINECS No.: |
- |
| Formula: |
C21H26O3 |
| Molecular
Weight: |
326 |
| Melting Point(°C): |
Min.47 |
| Volatile Loss (%): |
Max.0.3 |
| Color of Solution 460nm(%): |
Min.95 |
| Color of Solution 500nm(%): |
Min.97 |
| Appearance: |
Slightly Yellow Powder / Flakes |
| Ash (%): |
0.1 Max |
| Min. Purity: |
99% |
| Solubility (20°C) |
% w/w |
| Acetone: |
43 |
| Chloroform: |
61 |
| Ethanol: |
3.5 |
| Ethyl acetate: |
44 |
| n-Hexane: |
12 |
| Methanol: |
1.7 |
| Dichloromethane: |
67 |
| Toluene: |
>50 |
| Water: |
<0.01 |
PowerSorb™ 531 exhibits synergy with HALS.
PowerSorb™ 531 has excellent solubility and compatibility with high solid coatings formulations.
PowerSorb™ 531 can be used for PE, PP, PVC, PS, PC, PP fiber, Ethylene vinyl acetate etc.
PowerSorb™ 531 provides good light stability effect Paints, Powder coatings, Polyurethanes, rubbers.
PowerSorb™ 531 is recommended in PE, PP, PVC etc.
PowerSorb™ 531can be used in combination with antioxidants, phosphites and other light stabilizers.
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PowerSorb™ 531 is supplied in net weight 25kgfiber drum with PE liner.
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