Products Description
Sodium metabisulfite is an inorganic salt compound. Its appearance is white or slightly yellow crystalline powder or small crystals. Sodium metabisulfite is a strong reducing agent. Sodium metabisulfite can be produced by the soda ash method and the sodium bisulfite method.
Product Name: Sodium Metabisulfite SMBS/Sodium pyrosulfite
Apperance: White Crystalline Powder
Formula: Na2S2O5
CAS No:7681-57-4
EINECS:231-673-0
Technical Parameter
| 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 |
Application
Sodium metabisulfite is mainly used for the production of sulfites.
In the food industry, it can be used to add to wheat flour to reduce the toughness of gluten, making biscuits crispy, and it is also used for dehydrating vegetables to preserve nutrients and for preserving fruits and other products. It is used in the manufacture of candies and beverages as a bactericide,
In the brewing industry as a preservative, and in the food flavoring industry for the production of vanillin, etc.
In industrial production, it can be used as a reducing agent in oxidation-reduction systems in polymer synthesis and as a sulfonating agent in the synthesis of sulfonated resin products.
In the oilfield industry, it is used as an oxygen remover in the working fluids.
Package
25kg pp bag,27MT/20'FCL
1000kg bag, 20MT/20'FCL
Hot Tags: cas 7681-57-4 sodium metabisulfite smbs, China, manufacturers, suppliers, factory, price
