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Sodium metabisulfite CAS: 7681-57-4 CAS NO.7681-57-4
- FOB Price: USD: 1.00-2.00 /Metric Ton Get Latest Price
- Min.Order: 5 Metric Ton
- Payment Terms: L/C,T/T
- Available Specifications:
99%(1-5)Metric Ton99%(5-20)Metric Ton
- Product Details
Keywords
- Sodium metabisulfite
- Sodium pyrosulfite
- 7681-57-4
Quick Details
- ProName: Sodium metabisulfite CAS: 7681-57-4
- CasNo: 7681-57-4
- Molecular Formula: Na2S2O5
- Appearance: White powder
- Application: Syntheses Material Intermediates
- DeliveryTime: Within 2 weeks after order confirmatio...
- PackAge: 25kg/drum or 20kg/bag
- Port: Qingdao Port
- ProductionCapacity: 1000 Metric Ton/Year
- Purity: 99%
- Storage: Room Temperature
- Transportation: By sea or by air
- LimitNum: 5 Metric Ton
- CAS: 7681-57-4
- Molecular Formula: Na2S2O5
Superiority
|
Sodium metabisulfite |
|
|
Name |
Sodium metabisulfite |
|
Synonyms |
Sodium pyrosulfite; Disodium disulphite; Disulfurous acid disodium salt; Pyrosulfurous acid disodium salt |
|
Molecular Structure |
no |
|
Molecular Formula |
Na2S2O5 |
|
Molecular Weight |
190.10 |
|
CAS Registry Number |
7681-57-4 |
|
EINECS |
231-673-0 |
Details
|
Index |
Content |
|
|
Food grade |
Industrial grade |
|
|
Purity ( As Na2S2O5) |
98.0% min |
97.0% min |
|
Sulfur Dioxide( SO2) |
65.0% min |
65.0% min |
|
Arsenic ( As ) |
0.0002% max |
- |
|
Heavy metals ( As Pb ) |
0.0005% max |
- |
|
Selenium (Se ) |
0.0005% max |
- |
|
Iron (Fe) |
0.001% max |
0.002% max |
|
Water insoluble |
0.02% max |
0.05% max |
|
PH value : |
4.0-4.8 |
4.0-4.8 |
|
Purity ( As Na2S2O5) |
98.0% min |
96.0% min |