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    Sodium Sulfite Anhydrous

    ITEM CAS NO. UN NO./H.S CODE PURITY Hazard Class Molecular Formula:   WEIGHT QUANTITY/20' FCL
    Sodium Sulfite Anhydrous 7757-83-7  283210 90/93/97% NO Na2SO3 25KG Bag 26MT

     

    Product Name: Sodium sulfite anhydrous
    CAS NO: 7577-83-7
    Molecular Formula: Na2SO3
    Specifications
    Item Grade
    Best quality First quality Qualifier
    Sodium sulfite (Na2SO3) Assay, % ≥ 97.0 ≥ 96.0 ≥ 93.0
    Fe, % ≤ 0.003 ≤ 0.005 ≤ 0.02
    Insol. in water, % ≤ 0.02 ≤ 0.03 ≤ 0.05
    Free alkali (Na2SO3) Assay, % ≤ 0.10 ≤ 0.40 ≤ 0.80
    Sulphate (Na2SO4) Assay, % ≤ 2.5
    Chlorides (NaCl) Assay, % ≤ 0.10  
    Packing: 25kg plastic woven bag, 50kg/500kg/1000kg flexible freight bag, or upon clients' demand.
    Specifications: white crystal or powder; pH of aqueous solution: 9-9.5, At 33.4oC,it solubility is 28%. Density: 2.633(15.4oC), refracitive index: 1.565; Molecular weight126.04.
    H.S code: 283210
    Use: Used as deoxidant and bleaching agent for printing & dyeing industry; also used for paper making, electronic and water treatment industries.

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