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Brand Name : Y&X
Model Number : Sodium Metabisulfite
Certification : ISO9001
Place of Origin : China
MOQ : 1
Price : US$ 2500-40000/piece
Payment Terms : T/T
Type : Sodium Metabisulfite
Grade : Industrial Grade
Production Purity : ≥90%
Appearance of production : White Powder
Classification : Sulphate
CAS No. : 7681-57-4
Other Names : Sodium pyrosulfite
Manufacturers Industrial Grade Sodium Metabisulfite In China
Sodium Metabisulfite
Sodium Metabisulfite is white or yellow crystalline powder or small crystal, with strong odor of SO2, specific gravity of 1.4, soluble in water, the aqueous solution is acidic, contact with strong acid will release SO2 and generate corresponding salts, long time in the air, it will be oxidized to na2s2o6, so the product can not survive for a long time. When the temperature is higher than 150 ℃, SO2 will be decomposed.
Product Informations:
| CAS No. | 7681-57-4 | 
| EINECE | 231-673-0 | 
| HS CODE | 2832100000 | 
| MOLECULAR FORMULA | Na2S2O5 | 
  Specifications:
| Items | Specifications | Typical Analysis | |
| Na2S2O5 | (%) | 96.5 Min. | 96.83 | 
| Fe | (%) | 0.003 Max | 0.0006 | 
| As | (ppm) | 1.0 Max | 0.8 | 
| Heavy Metal(as Pb) | (ppm) | 5.0 Max | 2.0 | 
  
  
  Technical Specification
| Tests | Specification | 
| Appearance | White free-flowing Crystal Powder | 
| Purity (Na2S2O5) | 97% min | 
| Iron (Fe) | 0.003% min | 
| Heavy Metal (Pb) | 5 ppm max | 
| Arsenic (As) | 1 ppm max | 
| Water Insoluble | 0.05% max | 
| PH Value | 4.0-4.6 | 
  Packing
  25kgs/PP PE BAG
  
  Storage and Transportation
  kept in a light-proof,well-colsed,dry and cool place.

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