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Mfsorb® 501 is a benzophenone UV absorber, mainly for 280nm-320nm UV light. Easily soluble in most organic solvents, and has good compatibility with polymers.

Functions: UV Absorber

Chemical Family: Benzophenones

Compatible Polymers & Resins: Poly(Methyl Methacrylate) (PMMA), Polystyrenes (PS)

    Knowde Enhanced TDS

    Identification & Functionality

    Chemical Family
    Plastics & Elastomers Functions
    CAS No.
    131-56-6
    Technologies

    Features & Benefits

    Applications & Uses

    Application

    Used in plastics, coatings, adhesives, and also in optical materials such as styrene and polymethacrylate. 

    Recommended dosage

    0.1-0.5%

    Properties

    Physical Form
    Odor
    Light phenolic odor
    Appearance
    White or pale yellow crystalline powder
    Typical Properties
    ValueUnitsTest Method / Conditions
    Specific Extinction E290 (1%,1Cm)min. 630nm
    Purity (Hplc)min.99.0%
    Melting Point142.0 - 146.0°C
    Loss On Dryingmax. 0.20%
    Heavy Metals (Pb)max. 5ppm
    Gardner Colormax. 3

    Technical Details & Test Data

    Concentration

    0.1-0.5%