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    Sodium Hydrosulfide (68%) - China

    Sodium Hydrosulfide (68%) - China in Tradeasia

    IUPAC Name

    Sodium Hydrosulfide

    Cas Number


    HS Code




    Basic Info


    Yellow flakes

    Common Names

    Sodium bisulfide, Sodium sulfhydrate


    880@25kg PP woven bags, 22MT

    Brief overview

    Sodium Hydrosulfide is an inorganic compound with the formula NaHS. It is colorless needle-like crystal and easily deliquesced. It is soluble in water and alcohols. Crystalline NaHS exists in two phase transitions. At temperatures above 360 K, NaHS assumes the NaCl structure, which implies that the HS− behaves as a spherical anion due to its rapid rotation leading to equal occupancy of eight equivalent positions. Below 360 K, a rhombohedral structure forms, and the HS− sweeps out a discoidal shape. Below 114 K, the structure becomes monoclinic.



    Manufacturing Process

    It is produced by the reaction of sodium hydroxide and hydrogen sulfide.

    NaOH + H2S NaHS + H2O

    Paper Industry
    It is used as a make-up chemical in the manufacture of paper by Kraft process and to prepare synthetic cooking liquor. It may also be used as a scrubbing media for residual chlorine dioxide produced and used up in mill bleach plants.

    Leather Industry
    It is used to remove hair from hides before processing for leather and in preparation of sodium polysulfide immersion which helps to accelerate the dry skin soft.

    Mining Industry
    It is used as a flotation agent in copper mining where it is used to activate oxide mineral species. It sulphidizes oxide ores and separates copper from molybdenum by depressing copper from Cu-Mo concentrate allowing for conventional floatation separation.


    Other Applications

    It is used in waste water treatment to remove heavy toxic metals by precipitation. It is used in the textile industry for the reduction of denitrification and nitrification man-made fiber, cotton fabric dyeing and mordant. It is used in the production of antipyretics phenacetin.

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