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Sodium hydrosulfide (solid) (Nahs 70% flakes)

In dyeing industry, it is used as an auxiliary agent for the synthesis of organic intermediates and the preparation of sulfurized dyes. In leather industry, it is used for dehairing and tanning of raw hides, and effluent treatment.
  • Details
    • Commodity name: Sodium hydrosulfide (solid) (Nahs 70% flakes)

    In dyeing industry, it is used as an auxiliary agent for the synthesis of organic intermediates and the preparation of sulfurized dyes. In leather industry, it is used for dehairing and tanning of raw hides, and effluent treatment.

    Sodium Hydrosulfide

    Appearance and description: White to colorless cubic crystals with an odor of hydrogen sulfide. Normally, its solution is used in industrial products, with orange or yellow color.

    Melting point (°C): 350

    Relative density (Water = 1): 1.79

    Flash point (°C): 90

    Solubility: Soluble in water, ethanol, ether, etc.

    Solubility value: 620 g/L (20°C)

    Technical Parameter

    Product NameNahs 70% flakesCas No.16721-80-5
    Batch No.20240615Quantity30MT
    Manufacturing Date2024/6/15Expiry Date2025/6/15
    Reference Standard Q/371625 YFH021-2019 
    Test ItemsSpecificationTest Results
    ApperanceYellow FlakesYellow Flakes
    NASH %≥7071.14
    Na2S %≤2.01.05 
    Na2CO3 %≤20.52
    Fe ppm≤200.000864
    The quality conforms to the requirement of specification.The packing can meet the standard of long distance transport.

    Application of the Product

    In dyeing industry, it is used as an auxiliary agent for the synthesis of organic intermediates and the preparation of sulfurized dyes. In leather industry, it is used for dehairing and tanning of raw hides, and effluent treatment. In fertilizer industry, it is used for removing elemental sulfur from activated carbon desulfurizers. What’s more, it is also used as raw material for production of ammonium sulfide and semi-finished pesticides. In mining industry, it is extensively used for copper ore beneficiation. In the production of synthetic fiber, it is used for dyeing.

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