| CAS No.: | 7681-57-4 |
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| Other Names: | sodium pyrosulfite/ sodium disulfite |
| MF: | Na2S2O5 |
| EINECS No.: | |
| Place of Origin: | China (Mainland) |
| Brand Name: | Ruidesheng |
| Model Number: |
Quick Details
Specifications
CAS No.: 7681-57-4
Other Names: sodium pyrosulfite/ sodium disulfite
MF: Na2S2O5
EINECS No.: 231-673-0
Place of Origin:Shandong,China(mainland)
Grade Standard: Food Grade,Industrial Grade
Purity: 96.5%
Appearance: white or slight yellow crystalline form powder or small crystal
Application: used as bleaching agent, reducing agent, organic synthesis, ect.
Molecular Weight: 190.09
PH: 4.0-4.6
Prohibited Substance: strong acid, strong oxidant
Property: white or light yellow crystal powder, a strong smell of sulfur dioxide, relative density is 1.4, easy to dissolve in water and glycerin, water solution.
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Specification For Food Grade and Industry Grade:
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Item
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Quality Index
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Food Grade
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Industry Grade
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Purity(As Na2S2O5)
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98.0%min
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96.0%min
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Sulfur Dioxide(SO2)
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65.0%min
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65.0%min
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Arsenic(As)
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0.0002%max
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-
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Heavy metals(As Pb)
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0.0005%max
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-
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Selenium(Se)
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0.001%max
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-
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Iron(Fe)
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0.001%max
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0.002%max
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Water insoluble
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0.02%max
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0.05%max
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PH value:
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4.0-4.8
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4.0-4.8
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Remark:
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Cinformed with FCC V and E223 Standard
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