Industry Na2s205 Smb Sodium Metabisulfite Copper Flotation Reagents
Manufacturer Sodium Metabisulfite In Industry
Sodium Metabisulfite
Sodium Metabisulfite or sodium pyrosulfite (IUPAC spelling; Br. E. sodium metabisulphite or sodium pyrosulphite) is an inorganic compound of chemical formula Na2S2O5. The substance is sometimes referred to as disodium metabisulfite. It is used as a disinfectant, antioxidant and preservative agent.
Product Informations:
|
CAS No. |
7681-57-4 |
|
EINECE |
231-673-0 |
|
HS CODE |
2832100000 |
|
MOLECULAR FORMULA |
Na2S2O5 |
Specifications:
Industrail Grade
|
Items |
Specifications |
Typical Analysis |
|
|
Na2S2O5 |
(%) |
96.5 Min. |
96.83 |
|
Fe |
(%) |
0.003 Max |
0.0006 |
|
As |
(ppm) |
1.0 Max |
0.8 |
|
Heavy Metal(as Pb) |
(ppm) |
5.0 Max |
2.0 |
Technical Specification
| Tests | Specification |
| Appearance | White free-flowing Crystal Powder |
| Purity (Na2S2O5) | 97% min |
| Iron (Fe) | 0.003% min |
| Heavy Metal (Pb) | 5 ppm max |
| Arsenic (As) | 1 ppm max |
| Water Insoluble | 0.05% max |
| PH Value | 4.0-4.6 |
Packing
25kgs/PP PE BAG
Storage and Transportation
kept in a light-proof,well-colsed,dry and cool place.
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