Product Name: UV Absorber 531
Synonyms: UV-531, UV Absorbent 531
Chemical Name: 2-Hydroxy-4-n-Octoxy Benzophenone
CAS No.: 1843-05-6
Molecular Formula: C21H26O3
Chemical Structure:
Solubility, g/100g (25℃): Acetone: 74, Benzene:72, Methanol: 2, Ethanol: 2.6, n-hexane: 40.1
Technical Data:
Appearance | yellowy powder |
Purity, % | 99.0 min. |
Melting point, ℃ | 47-49 |
Ash, % | 0.1 max. |
Transmittance, %, 450nm | 90 min. |
500nm | 95 min. |
Applications:
It is one of best light stabilizer with high performance, which can absorb the UV radiation of 240-340nm wavelength. It has properties of light color, non-toxicity, good compatibility, little mobility and processing easily. It can protect polymers to a maximum extent, and can help to reduce the color. It is widely used in PE, PVC, PP, PS, PC, organic glass, polypropylene fiber, ethylene-vinyl acetate etc.. Moreover, it has very good light stability effect on drying phenol aldehyde, varnish of alcohol, polyurethane, acrylate, epoxy products, etc. the recommended dosage is 0.1%-0.5%.
Storage: Store in cool, dry and ventilated place, keep away from direct sunlight.
Packing: 20kg drum
Transport: Transport as per non-dangerous chemicals.
