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  • Phthalide
    3-Bromophthalide
    2-Carboxybenzaldehyde
    Potassium 2,5-dihydroxybenzenesulfonate
    p-Phenolsulfonic Acid Sodium Salt
    Tetramethylammonium bromide
    FERROUS FUMARATE
    Tetramethylammonium Hydroxide

    Nantong Huanyu Chemicals Co., Ltd.
    Add: Yangkou Township Chemical Park, Rudong County, Jiangsu, China.
    Zip code: 226407
    Contact: Shi Taibing
    Tel: +86-13951425530
    Fax: +86-0513-84813318
    Email: sales@nthuanyuchem.com
    URL: www.cqxwpk.com

     

    Potassium 2,5-dihydroxybenzenesulfonate

     

    [Molecular formula]: C6H5KO5S

    [Molecular weight]: 228.25

    [Structural formula]:

                 

    [Properties]: white crystalline powder, easily soluble in water, soluble in alcohols, Melting point249 - 251℃.

    [Quality index]:

    Index name Index
    Assay %  ≥98.0
    Melting point ℃ 249 ~ 251
    Sulfate (as SO4) % ≤0.5
    Iron (Fe) ppm ≤0.001
    Heavy Metals (as Pb) % ≤0.001
    Loss on drying   %  ≤0.2

    [Uses]:  Widely used in pharmaceutical and organic synthesis industry.

    [Packaging, storage & transportation]: 25KG composite bag, lined with double-layer plastic bag or cardboard drum. It is non-toxic, harmless, treated as common chemicals.

     
     
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