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        DNSD Acid (128-42-7)

        Chemical name: 4,4-Dinitrostilbene-2,2-disulfonic acid
        Structural formula:
                       
        Chemical formula: C14H10N2O10S2
        Molecular weight: 430
        CAS NO.:128-42-7
        Quality index:

        Item

        Index

        (1)Appearance

        orange powder

        (2)Binitro acid content(gross dry product)%  

        ≥ 66.0

        (3)binitrobenzyl compound
        (gross dry product )%    

        ≤ 0.5

        (4)Other organic impurities(gross dry product )%  

        ≤2.0

        (5)Inorganic salt(gross dry product )%       

        ≤ 2.0

        (6)Water insolubles(gross dry product)%      

        ≤1.0


        Main use: it is an intermediate of dyes.
        Packing: 25kg plastic woven bag.





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