UV-320
CAS NO.:3846-71-7
Chemical name:2-Benzotriazole-2-yl-4,6-di-tert-butylphenol
Molecular Formula: C20H25N3O
Molecular weight：323.4
Structural Formula:
Specification
Appearance:white crystalline powder
Assay(HPLC):99.0%min
Melting range:152-156℃
Volatile:0.2%max
Ash: 0.1%max
Light Transmittance:
440nm 97%min
500nm 98%min
Application: It is a high-efficient light stabilizer , widely apply to in the plastics and other organic matter, including unsaturated polyester, PVC, PVC plasticizing glue, etc. It has better effect when applied to in the polyurethane, polyamnamee, synthetic fibers especially those polyester and epoxy resins. It has strong ultraviolet absorbtion ability and low volatility characteristics. It can effectually protect the polyester and the organic colouring avoname ultraviolet radiation, thus protect the primitive physics appearances of the shaping object, films, etc. which under the open-air state. The color of it is lighter than general ultraviolet absorbers.
Toxicity and safety: LD50: 2000mg/kg min
Packing: Fiber drum or cardborad drum inner lining plastic bag, each drum 20kg net weight..Storage: It should be stored in a close system and kept in a dry, close and shade place.
