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    Products

    Ultraviolet absorber UV-329

    Chemical name:2-(2'-hydroxy-5'-tert-octyllphenyl)benzotriazole
    Molecular formula:C20H25N3O
    Structural formula:

    Properties:
    Properties and application:It is a white powder, melting point 101-106, soluble in benzene, styrene, ethye acetate, slightly soluble in ethyl alcohol, insoluble in water. It is a efficient light stabilizer, UV max:345nm, low volatility, used for polyetyrene, poly (methyl methacrylate), polyester and ABS resins and so on.
    Specifications:
    Appearance:
    White powder
    Melting Point
    101-106οC
    Volatile matter
    ≤0.5%
    Ash content
    ≤0.05%
    Transmissirity
    440nm≥97% 500nm≥98%
    Purity
    ≥99%

    Package: 25kg Carton

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