Benzophenone UV Absorber
CAS Number: 531-18-0
2,4-Dihydroxybenzophenone (UV-0) benzophenone-class UV absorber that provides broad UV protection from 270–340 nm through reversible photoenolization. It is a cost-effective UV stabilizer particularly suited for rigid PVC, polystyrene, and polyolefin applications where light absorption in the near-UV range is critical. Good compatibility with most plasticizers and polymer matrices.
Technical Specifications
| purity | ≥ 98% |
| appearance | Light yellow powder |
| melting point | 143 – 147°C |
| absorption max | 284 nm and 330 nm |
| loss on drying | ≤ 0.5% |
Applications
- Rigid PVC profiles and sheets
- Polystyrene and ABS outdoor applications
- Polyolefin films and greenhouse films
- Solvent-borne coatings and varnishes
- Printing inks for outdoor graphics
Key Features
- Cost-effective UV protection for plastics and coatings
- Broad UV absorption from 270 to 340 nm
- Good compatibility with PVC and polystyrene
- Easy to incorporate via melt mixing or solution
- Synergistic with HALS stabilizers
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CAS Number
531-18-0
Category
Light / Heat StabilizersAvailability
In StockSample
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