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Sodium Metabisulfite Na2s2o5 Cas 7757-83-7 For Water Treatment

    Buy cheap Sodium Metabisulfite Na2s2o5 Cas 7757-83-7 For Water Treatment from wholesalers
     
    Buy cheap Sodium Metabisulfite Na2s2o5 Cas 7757-83-7 For Water Treatment from wholesalers
    • Buy cheap Sodium Metabisulfite Na2s2o5 Cas 7757-83-7 For Water Treatment from wholesalers

    Sodium Metabisulfite Na2s2o5 Cas 7757-83-7 For Water Treatment

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    Brand Name : Y&X
    Model Number : Sodium Metabisulfite
    Certification : ISO9001
    Price : US$ 2500-40000/piece
    Payment Terms : T/T
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    Sodium Metabisulfite Na2s2o5 Cas 7757-83-7 For Water Treatment

    Sodium Metabisulfite CAS 7757-83-7 for with Water Treatment

    Sodium metabisulfite is a white or yellow crystalline powder or small crystal with a strong SO2 odor, a specific gravity of 1.4, soluble in water, and the aqueous solution is acidic. When it is in contact with a strong acid, it releases SO2 to form a corresponding salt. When it is left in the air, it oxidizes. It is Na2S2O6, so the product cannot be stored for a long time. Above 150 degrees Celsius, SO2 is decomposed.

    Description:
    White or light yellow crystal powder, a strong smell of sulfur dioxide,relative density is 1.4, easy to dissolve in water and glycerin, water solution. It has acidity,and its solubility will become large while raising the temperature and is less to dissolve in ethanol.

    Product Informations:

    CAS No.

    7681-57-4

    EINECE

    231-673-0

    HS CODE

    2832100000

    MOLECULAR FORMULA

    Na2S2O5


    Specifications:
    1) Food Grade

    Items

    Specifications

    Typical Analysis

    Colour

    /

    White or yellowish

    White

    State

    /

    Crystalline powder

    Crystalline powder

    Na2S2O5

    (%)

    96.5 Min.

    97.1

    Fe

    (%)

    0.003 Max

    0.0021

    Clarity

    /

    Passed

    Passed

    As

    (ppm)

    1.0 Max

    0.85

    Heavy Metal(as Pb)

    (ppm)

    5.0 Max

    0.04

    2) Industrail Grade

    Items

    Specifications

    Typical Analysis

    Na2S2O5

    (%)

    96.5 Min.

    96.83

    Fe

    (%)

    0.003 Max

    0.0006

    As

    (ppm)

    1.0 Max

    0.8

    Heavy Metal(as Pb)

    (ppm)

    5.0 Max

    2.0

    Remarks:

    1. Packing: plastic woven bag with PE liner.

    2. Utilizes China National Standard GB1893-2008.


    Packing :
    25kg /50kg /1000kg plastic woven bag, or as per customer demanding.
    Uses:
    1.Used for the production of insurance powder, sulfadimethylpyrimidine, analgin, caprolactam and so on;
    2.Used for the purification of chloroform, phenylsulfoxide and benzaldehyde.
    3.Ingredients used as fixing agents in the photographic industry;
    4.The spice industry is used to produce vanillin;
    5.Used as a preservative in brewing industry;
    6.Rubber coagulant and cotton cloth after bleaching dechlorination agent;
    7.Used for printing and dyeing, tanning;

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