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STL Chemical Co., Ltd.

China Manufacturer with main products: Monopotassium Phosphate, Mono Ammonium Phosphate, Diammonium Phosphate, Urea Phosphate, sodium metabisulphite, Sodium Metabisulphite, Caustic...

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Sodium metabisulfite(SMBS)

Supply Ability: 2,000 Ton per Month
Shipping: by sea
Payment Terms: L/C, T/T, D/A, D/P
Export Markets: North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe
Place of Origin: Hunan in China
Packaging Details: In net 25kg / 1000kg / 1100kg / 1200kg / 1250kg pp bags


Sodium Metabisulphite (SMBS)
is an inorganic compound composed of sodium, sulfur and oxygen. Its chemical formula is Na2S2O5. It typically comes in a white or yellowish-white crystalline powder. It easily dissolves in water. The substance is sometimes referred to as disodium (metabisulfite). It is used as a disinfectant,antioxidant and preservative agent.
Molecular Weight:
Molecular Formula:
Melting Point(℃):
Water Solubility:
540 g/L (20℃)
Industrial standard ( Top grade)
Value of our company
Assay(Na2S2O5 )%≥
Iron content(base on Fe) %≤
water insoluble matter %≤
Arsenic content(base on As) ≤
White or yellowish crystalline powder
- Industrial Uses
The many chemical properties of sodium metabisulfite make it a versatile compound useful in many applications. It can eliminate dissolved oxygen in waste water and in pipes. It functions as a bleaching agent, which is useful in making paper pulp, cotton and wool. It is used in water treatment plants to remove excess chlorine. In beer and wine manufacturing, it is often used to sterilize the equipment.
- Food Preservative
Sodium metabisulfite is used as a food preservative. It is commonly used as a food preservative for dried foods, like potato chips, raisins and apples, as well as fruit concentrate juices. It acts as an antimicrobial, inhibiting the growth of fungi and bacteria, thereby keeping food fresh and safe.
- Medicinal Use
Sodium metabisulfite is an antioxidant additive in injectable medicines and is also used as a reducing agent in pharmaceuticals.
- Sodium Metabisulfite as a Cleaner
Sodium metabisulfite is also present in wines and beers, as it is used as both a sterilizer and an antioxidant in the process of brewing beer or fermenting wine. The chemical is also used in the process of purifying water, cleaning water pipes and reverse osmosis membranes in desalinization equipment as it is an antibacterial.
- Sodium Metabisulfite in Other Uses
Sodium metabisulfite's acidic and preservative properties also make it an effective substitute for sodium bisulfite, a chemical which is used in traditional darkroom photography.
Also, sodium metabisulfite is used as a bleaching agent in pulp and textile manufacture, as well as a reducing agent in pharmaceuticals. It is also a known preservative in cosmetics.
The chemical, in concentrated form, has also been used in landscape gardening as a tree stump remover, as it disintegrates the lignin -- chemicals in plant cell walls -- in the tree stumps, making them easier to remove.
- In net 25kg / 1000kg / 1100kg / 1200kg / 1250kg pp bags

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