UV-329

UV-329

CAS NO.3147-75-9
Chemical name:2-(2-Hydroxy-5-tert-octylphenyl)benzotriazole
Molecular formula: C20H25N3O Molecular Weight:323.4
Structural Formula:

Specification
Appearance:White to off-white powder
Assay(G.C):99.0%min
Melting range:101-105℃
Volatile:0.2%max
Ash:0.1%max
Light Transmittance:
440nm 97%min
500nm 98%min
Solubility(20℃,g/10ml):Xylene 50,Methylene chloride 70,n-Hexane 8,
n-Butyl Acetate 24,Benzene 65,
Ethyl acetate 27,n-Butanol 2,Styrene 49, Water 0.01max
Mineral spirits 9,Methyl isobutyl ketone 19,PMA 14
Application: It is a excellent high effective ultraviolet absorber of benzotriazole type, it can absorb ultraviolet from wave 270nm to 340nm,and can be used in PVC, Polystyrene,unsaturated polyester,polycarbonate,polyethylene, ABS resin, Epoxy resin,and cellulose resin ect.it absorb little visible light,especially suited for colorless transparent material and semi-transparent material.it is allowed to be used in plastic container and packing material for food.
Usage:0.1-0.5 for thin materal and 0.05-0.2 for thick materal.Toxicity and safety: It can be safely handled without any irritation to the skin. LD 50:≥5000mg/kg
Packing: Fiber drum or cardborad drum inner lining plastic bag, each drum 25kg net weight or as required by the customers.Storage: It should be stored in a close system and kept in a dry, close and shade place.