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| Port | QINGDAO |
| Packaging | Packed in plastic woven bags lined with polyethylene plastic bags, each bag has a net weight of 25kg or 50kg. |
| Classification | Sulphate | Type | Sodium Metabisulfite |
| CAS No. | 7681-57-4 | Other Names | Sodium Pyrosulfite |
| MF | Na2S2O5 | EINECS No. | 231-673-0 |
| Place of Origin | Shandong, China (Mainland) | Grade Standard | Agriculture Grade, Electron Grade, Industrial Grade |
| Purity | 98%min | Appearance | White crystalline powder |
| Application | printing and dyeing mordant | Brand Name | AGING |
| Model Number | SMS | So2 | 65%min |
| Water insoluble matte | u22640.05% max | PH value | 4-8 |
| Iron(Fe | 0.002% max |
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