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      • Product name: Sodium Hydrosulphite(Sodium Hydrosulfite) 

        Mol. Formula: Na2S2O4

        Molecular wt.:174.11

        Properties: The bulk specific weight is 0.7-1.0g/m3 , dissolve in water, slightly dissolve in ethanol. Give off heat and cause combustion easily. Spontaneous decomposition occurs when the temperature is higher than 85℃, heats up to 190℃cause detonation. Self-ignition point is 250℃.

        Physical appearnce: free-flowing white crystalline powder

        Quality Standard: HG2074-91(%)                                                        

        Sodium Hydrosulphite               ≥     90        88         85                   

      • Water insoluble                       ≤     0.1        0.2        0.3                         

      • Sodium thiosulfate: Na2S2O3    ≤     1.2        1.25      1.3                  

      • Sodium metabisulfite: Na2S2O5  ≤      5          6           7                              

      • Sodium bisulfite:NaHSO3            ≤    0.4        0.45      0.5                          

      • Sodium carbonate: Na2CO3        ≤    0.6        1.3        2                               

      • Zn                                          ≤                0.00008   

      • Fe                                          ≤                0.002

      • Packing:  15kgs, 25kgs, 50kgs or 100kgs net in iron drums with double PVC bags

      • Usage: This product is strength oxidant and is used as bleaching agent for textile and papermaking industry, as synthetic for medicine-making, as absorbent for analysis chemical, and as flotation agent of nonferrous color metal for metallurgical industry

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