Detailed UV Absorber (UV-531) Description:
1) An effective anti-aging aid ; 2) Absorbs 240-340nm UV ray ; 3) Light in color ; 4) Easy in processing ; 5) Nontoxic ; 6) Has good compatibility and low migration ; 7) Greatly protects polymers, reduces color, retards yellowing and loss of physical properties ; 8) Widely used in PE, PVC, PP, PS, PC, PMMA, PP fiber and vinyl-vinyl acetate ; 9) Has good photo stabilizing effects for dry phenol and alkyd varnish, PU, arylate, epoxy, other air-dried products, car finish paint, powder coating, PU and rubber products at an addition of 0.1% - 0.5% ; 10) Nontoxic, non-flammable, non-explosive and non-corrosive ; 11) Has good storage stability ; 12) Chemical name: 2-hydroxy-4-octyoxy diphenyl ketone ; 13) Appearance: light yellow needle crystalline powder ; 14) Content: ≥99%; 15) MT: 47-49°C ; 16) Ash: <0.1% ; 17) Transmission: 450nm>90%, 500nm>95% ; 18) Solubility: (25°C) (g/100g solvent) ; a) Acetone: 74 ; b) Benzen: 72 ; c) Methanol: 2 ; d) Ethanol (95%): 2.6 ; e) N-heptane: 40 ; f) N-hexane:40.1
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