UV Absorber 531

Chemical name:  2-hydroxy-4-n-octyloxy benzophenone  

Molecular formula :C21H26O3

Molecular weight :326

CAS number: 1843-05-6

Product introduction:   

UV absorber UV-531 is a highly efficient anti-aging additive with excellent performance, which can absorb 240-340 nanometer ultraviolet light, with light color, non-toxic, good compatibility, small migration, easy to process and so on. It provides maximum protection to the polymer and helps reduce color while retarding yellowing and retarding physical property loss.  

 Physical Properties:  

 Appearance: Light yellow powder   Content: ≥99%     Melting point: 47-49℃

Gray: ≤0.1%   Transmittance: 460nm≥97%   500nm≥98%     Dry loss: ≤0.5%

Application:

It is widely used in PE, PVC, PP, PS, PC, plexiglass, polypropylene fiber and vinyl acetate, etc. Alkyd varnishes, polyurethanes, acrylics, epoxies and other air-drying products, as well as automotive refinish paints, powder coatings, rubber and other products provide good light stabilization.  The dosage is 0.1-0.5%.

Packaging: Package in cardboard drum lined with plastic bag, 20KG/drum. Storage: Protect against rain, moisture and sun.

Validity period:12 months