Sodium Metabisulfite Industrial Grade
Unlike Food Grade sodium metabisulfite used as a food preservative, Sodium Metabisulfite Industrial Grade is used in various other industries as a bleaching agent. It is an alternative to sulphur dioxide which is used in sterilization of equipment. Some of its common uses are within the Leather processing, gas purification, water treatment (removes excess chlorine), textiles, pulp and paper processing. It can also be used in the manufacture of other chemicals.
Weifang Bell Chemical Co., Ltd is a TOP Sodium Metabisulfite Manufacturer and Direct Supplier in China. We have two manufacturing factories in Weifang chemical industrial park, which is the largest ocean chemical industry zone in China. Our first factory was founded in 2005. In 2015, we built the second factory to expand production capacity. The new factory covers 24800 square meters with advanced production equipment and an automatic packing system. Now our industrial grade sodium metabisulfite annual capacity reaches 60,000 tons. Please get in touch with us if any questions.
Sodium Metabisulfite Industrial Grade | ||
Item | Specification | Test result |
Main content (Na2S2O5) | ≥96.5 | ≥97.0 |
Fe %( Fe) | ≤0.005 | ≤0.002 |
Water-Insoluble | ≤0.05 | ≤0.02 |
Arsenic(As) content | ≤0.0001 | ≤0.0001 |
Sodium Metabisulfite Industrial Grade Applications
Industrial sodium metabisulfite is widely used in the following industries:
- Rubber: as a coagulant.
- Printing and dyeing: as a dechlorination agent for bleached cotton.
- Leather: impart leather the properties of soft, waterproof, folding resistance in leather treatment.
- Surfactants and polymerization: as a sulfonating agent and reducing agent.
- Gold refining: as a reducing agent to precipitate gold out of an aqua regia solution.
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Oxygen scavenging and chlorine removal
This product is used in steam boiler water treatment to remove dissolved oxygen and to remove excess chlorine from wastewater. It is a white granular product that is readily soluble in water. -
Reducing and sulfonating agent
This product is used as a sulfonating agent and reducing agent in chemical process with significant applications for surfactants and polymerization. It is a white granular product that is readily soluble in water. -
Chrome and metals reduction
This product is used to reduce chrome and other metals. It is a white granular product that is readily soluble in water. -
Solubilizing agent
This product is used as a solubilizing agent in vegetable tanning. It is a white granular product that is readily soluble in water. -
Removal of cyanide
This product is used to remove cyanide from the tailings of precious metal mining sites. It is a white granular product that is readily soluble in water. -
Reducing agent for dyes
This product is used in the textile industry as as reducing agent for dyes. It is a white granular product that is readily soluble in water.