| ≥1 piece |
1)Our strong item! competitive price!
2) Passed through ISO 9001:2008 Certificate
3)SO2:65%min
4)stable supplier!
Synonym: Sodium pyrosulfite
Molecule Formula: Na 2 S 2 O 5?
Molecule Weight: 190.12
CAS No.: 7681-57-4
Property: White or light-yellow crystalline powder, Specific gravity is 1.4. Its soluble in glycerine, Its soluble slightly in alcohol.
Specification:
|
Sodium Metabisulfite (as SO 2 ) |
65% Min |
|
Iron(Fe) |
0.003% Max |
|
Water Insoluble Matter |
0.05% Max |
|
PH |
4.0-4.6 |
|
Heavy metal(as Pb) |
0.002% Max |
|
Arsenic(As) |
0.0002% Max |
Packing: Net each in 25kg plastic woven bag, lined with PE bag.
Usage: Mainly used for manufacturing sulphuric acid and bactericidal agent, Carrying out vegetable dehydrate, fruit preservation and bleaching.