Product Description
Product Information
| Product name | Sodium Hydrosulfite | Purity | 85% 88% 90% |
| CAS.No | 7775-14-6 | HS code | 2831101000 |
| MF | Na2S2O4 | Apperance | White Crystal Powder |
| EINECS.No | 231-890-0 | UN No | 1384 |
Product Display
Certificate Of Analysis
| Sodium Hydrosulfite 85% | ||
| Item | Standard | Testing result |
| Purity(wt%) | 85min | 85.84 |
| Na2CO3(wt%) | 3-4 | 3.41 |
| Na2S2O3(wt%) | 1-2 | 1.39 |
| Na2S2O5(wt%) | 5.5-7.5 | 6.93 |
| Na2SO3(wt%) | 1-2 | 1.47 |
| Fe(ppm) | 20 max | 18 |
| Water lnsoluble | 0.1 | 0.05 |
| HCOONa | 0.05max | 0.04 |
| Appearance | White crystalline powder | |
| Odor | No or light sulfurous acid | |
| Sodium Hydrosulfite 88% | |||||
| Na2S2O4% | Water insolubles% | Heavy MetalContent(ppm) | Na2CO3% | Fe(ppm) | Zn(ppm) |
| 88 MIN | 0.05MAX | 1MAX | 1-5.0 | 20MAX | 1MAX |
| 88.59 | 0.043 | 0.34 | 3.68 | 18 | 0.9 |
| Apperance: White crystalline powder | |||||
| Odor: ordorless of sulfur dioxide | |||||
Application
Used for food bleaching, such as gelatin, sucrose, candied fruit
Used in organic synthesis, such as reducing agent or bleaching agent in the production of dyes and medicines
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