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Naphthol AS-PH

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Product Detail

    Naphthol AS-PH

    Items:Naphthol AS-PH

    C.I. 37558

    CAS: 92-74-0

    Chemical Formula:C19H17NO3

    Appearance: Light beige brown powder

    Color shade(with standard):similar

    Strength:100±3%

    Purity:=98%

    Melting point:=155?

    Insoluble in Alkali:=0.4%

    BON acid content:=0.4%

    Reidue on 60 Msieve(or 80 Masrequest):=5%

    Use: This product is mainly used as organic pigment intermediate. It can produce pigment red 170,pigment orange 22. This product can also be used for dyeing cotton yarn, cotton fabric, vinylon, cotton fibers, viscose and silk and it is generally not used for printing. This product has low affinity to cotton and moderate coupling ability.

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Qingdao Longyuntong Corporation

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