| CAS No.: | 7681-57-4 |
|---|---|
| Other Names: | Sodium metabisulfite |
| MF: | Na2S2O5 |
| EINECS No.: | |
| Place of Origin: | China (Mainland) |
| Grade Standard: | Industrial Grade |
| Purity: | 97% |
| Appearance: | White or slightly yellow crystal powder |
| Application: | Bleaching agent for textiles. Dechlorination agent for bleached textiles. Bleaching agent paper pulps.Bactericide and antiseptic in food industries. |
| Brand Name: | Rongda |
| Model Number: |
Quick Details
Specifications
1.monthly output about 3000MT
2.Purity(Na2S2O5): 97% Min
3.SO2 Content: 65% Min
4.CAS No.:7681-57-4
2.Purity(Na2S2O5): 97% Min
3.SO2 Content: 65% Min
4.CAS No.:7681-57-4
5. Chemical formula:Na2S2O5
6.Standard:Industrial Grade:HG/T2826-2008,Food Grade:GB1893-2008
Product Specification:
Product Specification:
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Item |
Index
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Technical Grade
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Food Grade
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|
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Special
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First
|
|
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Na2S2O5
|
96.5%min
|
95.0%min
|
96.5%min
|
|
Iron (Fe)
|
50ppm%max
|
100ppm%max
|
30ppm%max
|
|
Clear degree
|
--
|
--
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Through the test
|
|
Water-fast material
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0.05%max
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0.05%max
|
--
|
|
Heavy metal(Pb)
|
--
|
--
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5ppm%max
|
|
Arsenic(As)
|
1ppm%max
|
--
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1ppm%max
|
Physical appearance:White or slightly yellow crystal powder.
3. Package: Compound plastic woven bag with polyethylene liner, net weight 25kg or 50kg each.
Delivery time: within 15days after received LC or T/T advance
4. Notice: Store it in aeration and shady place . Not put it together with strong acids, oxidants. Avoid the wrappage being perforated and prevent from water and moisture when conveyed. Exposure to moisture will make it to be oxidized easily to release SO2. Do not store it for long time.
5. Aplication: Bleaching agent for textiles. Dechlorination agent for bleached textiles. Bleaching agent paper pulps.Bactericide and antiseptic in food industries. Disposal agent for waste water,etc.
6. Quality-keep time:6 months.