| Sodium Metabisulphite
Formula: Na2S2O5
Molecular Weight: 190.10
CAS No.: 7681-57-4
Item |
Index |
Industrial Grade |
Food grade |
Content(as Na2S2O5 ) %min |
96 |
-- |
Content(as SO2) %min |
-- |
65 |
Iron(Fe) %max |
0.005 |
0.005 |
Water insoluble matter %max |
0.05 |
0.05 |
Arsenic(As) %max |
0.0001 |
0.0002 |
Heavy metal(as Pb) %max |
-- |
0.002 |
PH |
-- |
4-6 |
Packing: in net 25kg/1100kg/1200kg per pp bag.
Use: Dye printing mordant; Textile antichlor after being bleached; Reducing agent and sulfonating agent for chemical and medical use; Bamboo, wood, paper fiber bleaching agent, non-ferrous metal ore dressing agent, waste water treating, rubber freezing agent.
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