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Food Additive Sodium Sulfite powder Water Treatment Na2SO3 97% Purity CAS No 7757-83-7

Food Additive Sodium Sulfite powder Water Treatment Na2SO3 97% Purity CAS No 7757-83-7

    • Food Additive Sodium Sulfite powder Water Treatment Na2SO3 97% Purity CAS No 7757-83-7
    • Food Additive Sodium Sulfite powder Water Treatment Na2SO3 97% Purity CAS No 7757-83-7
  • Food Additive Sodium Sulfite powder Water Treatment Na2SO3 97% Purity CAS No 7757-83-7

    Product Details:

    Place of Origin: Hunan
    Brand Name: Kemsky
    Certification: ISO 9001 SGS
    Model Number: sodium sulfite water treatment

    Payment & Shipping Terms:

    Minimum Order Quantity: 1 metric ton
    Price: usd 510 per metric ton
    Packaging Details: 25 kgs bag,1000 kgs big bag
    Delivery Time: 5-8 days
    Payment Terms: T/T , L/C
    Supply Ability: 3000 tons per month
    Contact Now
    Detailed Product Description
    Name: Sodium Sulfite Water Treatment Other Name: Anhydrous Sodium Sulphite Water Treatment
    Situation: Dry Powder Usage: Water Treatment Chemical
    Packing: 25 Kgs Plastic Woven Bag CAS NO: 7757-83-7

     

    ANHYDROUS SODIUM SULFITE FOR WATER TREATMENT 

     

    Our Advantages:

     

     

    I). We have abundant professional production experience.

    II). We have our own chemical factory.

    III). Sample is free of charge.

    IV). Reasonable Price, Excellent Quality & Attentive Service

    V). Prompt reply: we can reply your inquiry and email within 24 hours.

    VI). Fast Delivery: The delivery time is about 10-20 days after receiving the deposit.

    VII). We have passed the LFGB, SGS, STC, HSL and some other tests.

    VIII). We have a unity cooperation team

     

    Sodium Sulfite is a white crystal or powder with reducing property. Sodium sulfite exhibits bleaching, de-sulfurizing, and dechlorinating activities. This agent was used by food industry to help maintain the fresh appearance of food products. It is also a component in many drugs, which helps maintain their potency and stability. FDA has ruled sodium sulfite a new animal drug of low regulatory priority.


    SODIUM SULFITE is a white odorless powder. Density 2.633 g / cm3. Moderately toxic. Sinks in water and dissolves slowly. Also transported as a heptahydrate Na2SO3.7H2O.


    Sodium sulfite (sodium sulphite) is a soluble sodium salt of sulfurous acid (sulfite) with the chemical formula Na2SO3. It is a product of sulfur dioxide scrubbing, a part of the flue-gas desulfurization process. It is also used as a preservative to prevent dried fruit from discoloring, and for preserving meats, and is used in the same way as sodium thiosulfate to convert elemental halogens to their respective hydrohalic acids, in photographyand for reducing chlorine levels in pools.

    Applications

     

    Sodium sulfite is primarily used in the pulp and paper industry. It is used in water treatment as an oxygen scavenger agent, to treat water being fed to steam boilers to avoid corrosion problems,[2] in the photographic industry to protect developer solutions from oxidation and (as hypo clear solution) to wash fixer (sodium thiosulfate) from film and photo-paper emulsions, in the textile industry as a bleaching, desulfurizing and dechlorinating agent and in the leather trade for the sulfitization of tanning extracts. It is used in the purification of TNT for military use. It is used in chemical manufacturing as a sulfonation and sulfomethylation agent. It is used in the production of sodium thiosulfate. It is used in other applications, including froth flotation of ores, oil recovery, food preservatives, and making dyes.

    Reactions

    Sodium sulfite forms a bisulfite adduct with aldehydes, and with ketones forms a sulfonic acid. It is used to purify or isolate aldehydes and ketones.

    Descriptive chemistry

    Sodium sulfite is decomposed by even weak acids, giving up sulfur dioxide gas.
    Na2SO3 + 2 H+ → 2 Na+ + H2O + SO2
    A saturated aqueous solution has pH of ~9. Solutions exposed to air are eventually oxidized to sodium sulfate. If sodium sulfite is allowed to crystallize from aqueous solution at room temperature or below, it does so as a heptahydrate. The heptahydrate crystals effloresce in warm dry air. Heptahydrate crystals also oxidize in air to form the sulfate. The anhydrous form is much more stable against oxidation by air.

     

     

    Food Additive Sodium Sulfite powder Water Treatment Na2SO3 97% Purity CAS No 7757-83-7 

    Contact Details
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    Contact Person: Ms.xie

    Tel: +8613975090964

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