Detail Information |
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Type: | Chemical Industrial Grade Sodium Metabisulfite China Supplier | Grade: | Industrial Grade |
---|---|---|---|
Iron (Fe):: | 0.003 Max | Appearance Of Production: | White Powder |
Certification: | ISO9001 | Sample: | Sample Free |
Packing: | 25kg Pp Bag With PE Inner Bag | Na2S2O5: | 97% |
High Light: | industrial grade metabisulfite de sodium,na2s2o5 na metabisulfite,na2s2o5 metabisulfite de sodium |
Product Description
Chemical Industrial Grade Sodium Metabisulfite China Supplier
Sodium Metabisulfite
Sodium metabisulfite is a white or yellow crystalline powder or small crystal with a strong SO2 odor, a specific gravity of 1.4, soluble in water, and the aqueous solution is acidic. When it is in contact with a strong acid, it releases SO2 to form a
corresponding salt. When it is left in the air, it oxidizes. It is Na2S2O6, so the product cannot be stored for a long time. Above 150 degrees Celsius, SO2 is decomposed.
Product Informations:
CAS No. |
7681-57-4 |
EINECE |
231-673-0 |
HS CODE |
2832100000 |
MOLECULAR FORMULA |
Na2S2O5 |
Specifications:
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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