Molecular formula: C21H26O3
Specifications:
Appearance: Yellowish crystal powder
Melting point: 47-50℃
Volatile matter: 0.1% max
Ash: 0.1% max
Transmittance(440nm): 79% min
Transmittance(460nm): 89% min
Assay: 99% min
Applications:
UV absorber 531 is a benzophenone light stabilizer, capable of absorbing the UV radiation of 240-340nm wavelength. It is of light color, non-toxicity, good compatibility, small mobility and easy processing. It is widely applied to PE, PVC, PP, PS, PC organic glass, PP fiber, ethylene-vinyl acetate etc. Moreover, it has very good light-stability on drying phenol aldehyde, varnish of alcohol, polyurethane, acrylate, expoxnamee, etc.
Its dosage is recommended to be 0.1%-0.5%.
Packing: 25kg C/T type
