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SODIUM  SULPHITE  ANHYDROUS

Formula: Na₂SO₃

Chemical function:
White crystal or powder;  brilliant; triangle prism;  Solution alkalescence, PH:9-9.5.  When 33.4℃, max solubility is 28%.  Will easy be oxidated to sodium sulfate exposed in air; will be decompounded to sulfuration and sodium sulfate in high temperature; When meet strong acid, it will be decompounded to related salt meanwhile emiting sulfur dioxide that is strong reducer; When meet SO2 create to sulfurous acid sodium.  Consistency is 2.633（15.4℃）, refraction rate is 1.565, molecular weight is 126.04.

Use:
In printing and dyeing industry, it is using as to oxidizer and bleacher for steaming cotton fabric to prevent fabric cotton fibre local oxidation to strong fibre intention.  In sensitization industry as developer, in organic industry as reducer of benzene diamine, amidoacid.  In spin industry as synthetic fiber, stabilization.  And also for paper making, electronic, water disposal industry.

Package, Store and delivery:
1.Inner with plastic bag, coat with plastic intertexture bag.  Inner bag is pricked or heat closed, out bag is sewed.  N/G is 25kg or 50kg.
2.Sodium Sulphite is packaged with plastic intertexture bag or cask with an inner plastic bag.  N/G is 25kg or 50kg.
3.Should be loaded in Vehicle with canopy to prevent affected with damp or solarization.
4.The deposited validity date is in 6 months from its production date