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Sodium bisulfite
  • CAS No.:

  • Molecular Formula:

  • Quality Standard:

    99% Min
  • Packing:

  • Mininmum Order:

    1,000 kgs

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  • Product Details

Sodium Bisulfite CAS 7631-90-5 is white monoclinic crystalline powder with sulfur dioxide odor; relative density: 1.48;very easily soluble in water; can be decomposed when heated;slightly soluble in ethanol; aqueous solution is acidic; has strong reducing property;can be oxidized in the air or loose sulfur dioxide.


Appearance                          White crystalline powder

Content (NaHSO3),%           99.0 Min
SO2,%                                  64-67
Cl,%                                     0.05
Fe,%                                    0.004 Max
Water Insoluble Matter,%    0.03% Max
Heavy metal (Pb),%             0.001 Max
As,%                                    0.0002 Max

PH                                        4.0-5.0


Sodium Bisulfite is used in the bleaching of cotton textiles; as reducing agent in dyes,paper-making, leather, chemical synthesis;in the manufacture of pharmaceutical intermediates, photographic developer,food bleacher, antiseptic and anti-oxidants.


25kg plastic woven bag

500kg/1000kg/1100kg/1200kg jumbo bag.

20mt-25mt per 20 feet container


Placed in sealed container and kept in a cool and dry place.

Avoid strong vibration, insolation, high temperature, smoke and fire.

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