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                  Products

                  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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