Product Name: CAS 1843-05-6 Light Stabilizer UV-531 Model NO.: Plastic additive Appearance: Powder Kind: UV Absorber CAS No.: 1843-05-6 Product Name: Light Stabilizer UV 531 CAS No.: 1843-05-6 Assay: 99% Trademark: SWC Transport Package: in 20 or 25kgs Net Carton or Cardboard Drum Specification: industry grade Origin: P. R. China Product Description UV 531 is a Ultraviolet Absorber for PE, PP and PVC.Chemical name: 2-Hydroxy-4-n-octoxybenzophenoneCAS NO.:1843-05-6Packing in 25kgs net cardboard drumsSpecificationItemSpecificationAppearancelight yellow crystalline powder or flakesPurity 99.0% minMelting point47.0 - 49.0 °C minLoss on drying0.5% maxResidue on ignition0.1% maxApplicationUV 531 is an ultraviolet absorber with good performance, capable of absorbing the UV radiation of 240-340 nm wavelength with the characteristics of light color, nontoxic, good compatibility, small mobility, easy processing etc. It can protect the polymer to its maximum extent, helps to reduce the color. It can also delay the yellowing and obstacle the loss of its physical function. It is widely applied to 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 and etc. Usage: 0.1%-0.5% based on polymers weightPacking and StoragePacking In 20 or 25kgs net carton or cardboard drumStorage Keep tightly closed and store in cool and dry place