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Molecular Formula: Na2S2O5 Molecular Weight: 190.10 CAS NO:7681-57-4 Appearance: white or light yellow crystalline powder Character: with smell of SO2,soluble in water,the solution is acidic.
Usages: Fiber, photo ,pharmacy,chemical ,petroleum chemical and so on. Packing: 25kg PE bag or 1000kg/bag Product specifications:
Items | Index | ||
standard | Reference value | ||
Na2S2O5 ≥% | 97.5 | 97.9 | |
Fe ≤ % | 0.0005 | 0.0003 | |
Insoluble in water ≤ % | 0.005 | 0.002 | |
Cl ≤ % | 0.005 | 0.0005 | |
Sodium thiosulfate≤ % | 0.05 | 0.02 | |
Pb≤ % | 0.0005 | 0.0001 | |
As ≤ % | 0.0001 | 0.00002 | |
Molecular Formula: Na2S2O5 acrylic gradeMolecular Weight: 190.10 CAS NO:7681-57-4 Appearance: white or light yellow crystalline powder Character: with smell of SO2,soluble in water,the solution is acidic.
Usages: Fiber, photo ,pharmacy,chemical ,petroleum chemical and so on. Packing: 25kg PE bag or 1000kg/bag Product specifications:
Items | Index | ||
standard | Reference value | ||
Na2S2O5 ≥% | 97.0 | 97.3 | |
Fe ≤ % | 0.001 | 0.0006 | |
Insoluble in water ≤ % | 0.01 | 0.004 | |
Cl ≤ % | 0.001 | 0.0005 | |
Sodium thiosulfate≤ % | - | - | |
Pb≤ % | 0.001 | 0.0002 | |
As ≤ % | 0.0001 | 0.00003 | |
Molecular Formula: Na2S2O5 electronic gradeMolecular Weight: 190.10 CAS NO:7681-57-4 Appearance: white or light yellow crystalline powder Character: with smell of SO2,soluble in water,the solution is acidic.
Usages: Fiber, photo ,pharmacy,chemical ,petroleum chemical and so on. Packing: 25kg PE bag or 1000kg/bag Product specifications:
Items | Index | ||||
standard | Reference value | ||||
Na2S2O5 ≥% | 97.5 | 97.7 | |||
Fe ≤ % | 0.001 | 0.0005 | |||
Insoluble in water ≤ % | 0.01 | 0.004 | |||
Cl ≤ % | 0.001 | 0.0005 | |||
Sodium thiosulfate≤ % | - | - | |||
Pb≤ % | 0.001 | 0.0002 | |||
As ≤ % | 0.0001 | 0.00003 | |||
Sodium metabisulfite