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Ultraviolet absorber UV-328

Chemical name:2-(2'-Hydroxy-3',5'-di-tert-pentylphenyl)-benzotriazole
Molecular formula:C22H29N3O
Structural formula:

Properties:
Properties and application:It is a pale yellowish powder melting point 81, soluble in benzene, toluene, ethyl acetate and petroleum ether, slightly soluble in ethyl alcohol and methyl alcohol insoluble in water.
It is a excellent ultraviolet absorbet, UV  max:345nm, solubility for polymer is good, volatility is little, mainly used for PE, PP,PS,PVC, poly ester and ABS resins, and so on.
Specifications:
Appearance
Light yellow powder
Melting point
≥81
Volatile matter
≤0.5%
Ash content
≤0.05%
Transmissirity
460nm≥97% 500nm≥98%
Purity
≥99%

Package: 25kg Carton

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