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Sodium Pyrosulfite

Another Name Sodium Metabisulfite
CAS No. 7681-57-4
HS 28321000
MF Na2S2O5
Appearance White or Slightly Yellowish
Packaging Details 25kg bag, 1000kg bag or As requested
Function Used in Medicine, Papermaking, Tannage
Grade Standard Industrial Grade
Sodium Pyrosulfite ≥(SO2)65%
Iron ≤0.005%
Value of PH 4—4.6
Heavy Metal (Pb)% ≤0.002%
(As)% ≤0.0001%
Appearance White or Tiny Yellow Crystal Powder

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