Sodium Metabisulfite,CAS:7681-57-4,used in Feed, Food, Industrial, Mining & Drilling & Oil and Gas, Pharma & Personal Care, Water Treatment, Textile, Dyeing,Leather & Detergent

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    CAS:7681-57-4,

    Sodium metabisulfite is widely used as a preservative and antioxidant in various industries. In the food industry, it prevents spoilage, browning, and discoloration in dried fruits, juices, and wine by inhibiting microbial growth. In water treatment, it removes excess chlorine. In the textile industry, it serves as a bleaching agent for cotton and wool, while in photography, it's used to develop and fix images. Additionally, it's employed in mining for ore flotation and in pharmaceuticals for maintaining stability in certain formulations. Its reducing properties make it valuable in many chemical processes.

     
     

     

     

    CAS: 7681-57-4
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    Sodium metabisulfite (Na₂S₂O₅) is a versatile compound with various industrial, commercial, and household applications. Here are some of its primary uses:

    1. Food Industry
    Preservative: It is widely used as a preservative in foods and beverages to prevent spoilage by inhibiting the growth of bacteria, fungi, and yeast. It helps extend shelf life and maintain freshness.
    Antioxidant: Sodium metabisulfite acts as an antioxidant in food processing, preventing oxidation of certain compounds, such as pigments, thus maintaining the color and flavor of the product.
    Bleaching Agent: It is used to bleach flour and processed foods to achieve a desired appearance.
    2. Wine and Beer Production
    Sanitizer: Sodium metabisulfite is used as a sanitizing agent in winemaking and brewing to sterilize equipment, bottles, and barrels.
    Antimicrobial Agent: It is added to wine and beer to prevent oxidation and microbial growth, preserving the flavor and preventing spoilage.
    3. Water Treatment
    Dechlorination: In water treatment plants, it is used to remove chlorine or chloramine from water after disinfection processes. This protects downstream biological processes from chlorine damage.
    Heavy Metal Removal: It aids in the removal of heavy metals like mercury and cadmium from wastewater by reducing them to their insoluble forms.
    4. Photographic Industry
    Fixing Agent: In traditional photographic processing, sodium metabisulfite is used as a fixer to remove excess silver halide, ensuring the permanence of the developed image.
    5. Textile and Leather Industry
    Bleaching: In the textile industry, sodium metabisulfite is used for bleaching wool and cotton, and it helps soften leather during processing.
    6. Cosmetics and Pharmaceuticals
    Antioxidant: In cosmetics, it helps to stabilize products by acting as an antioxidant and preservative, preventing the degradation of active ingredients.
    Reducing Agent: It is used in some pharmaceuticals as a reducing agent and preservative in formulations.
    7. Mining and Chemical Manufacturing
    Reducing Agent: Sodium metabisulfite is used in the mining industry to reduce and recover precious metals like gold from ores.
    Chemical Reagent: It serves as a chemical reagent in various synthesis processes, especially in the production of certain dyes and chemicals.
    8. Household Applications
    Cleaning Agent: It can be used as a cleaner, especially in industrial and laboratory settings, to clean and sanitize equipment.
    9. Health and Safety Considerations
    While it has many applications, sodium metabisulfite can cause allergic reactions in sensitive individuals, especially those with asthma or sulfite sensitivity, and needs to be handled with care in both food and industrial applications.
    Its role as a reducing agent and preservative makes sodium metabisulfite essential across many industries.

    More Information
    SKU 7681-57-4
    HS Code 283210
    Formula Na2s2o5
    Purity 97%
    Application Feed, Food, Industrial, Mining & Drilling & Oil and Gas, Pharma & Personal Care, Water Treatment, Textile, Dyeing,Leather & Detergent
    Usage

    Sodium metabisulfite is widely used as a preservative and antioxidant in various industries. In the food industry, it prevents spoilage, browning, and discoloration in dried fruits, juices, and wine by inhibiting microbial growth. In water treatment, it removes excess chlorine. In the textile industry, it serves as a bleaching agent for cotton and wool, while in photography, it's used to develop and fix images. Additionally, it's employed in mining for ore flotation and in pharmaceuticals for maintaining stability in certain formulations. Its reducing properties make it valuable in many chemical processes.

     
     

     

     

    TDS
    ItemsStandardTest Result 
    Content(Na2s2o5) ≥97.0%97.5% 
    SO2: ≥65.0%66.2%
    Iron(Fe) :≤0.002%0.0015%
    Ar senic (As) ≤0.0001%<0.0001
    Water Insoluble Matter: ≤0.02%0.01%
    PB: ≤0.0005%0.00048%
    PH4-4.84.58
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