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        ER-I

        Fluorescent whitening agent ER-I dry powder
        Structural Formula:

        Molecular Formula:C24H16N2
        Molecular weight:332
        Quality Index:

        Item

        Index

        1.Appearance

        Yellow green crystal

        2.Colored light

        Blue purple

        3.Fusion point

        229℃-231℃

        4.Purity

        ≥98%

        Function and characteristic:
        Yellow green crystal,insoluble in water,soluble in majority of organic solvent, colored light is blue purple.
        Scope of application:
        Used for whitening and brightening of polyester fiber, also have good whitening effect for formale, polypropylene and polyvinyl chloride
        Use method:
        Normal consumption in polyester fiber is 0.02-0.08%.
        Package and storage: 25Kg carton lined with plastic bag, protect from light, transport by non-dangerous goods.





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