About Us
Factory Tour
Quality Control
Contact Us
Request A Quote
Home ProductsSodium Pyrosulfite

97% Purity Tech Grade Sodium Pyrosulfite Purification In Chloroform Na2S2O5 98% Purity

97% Purity Tech Grade Sodium Pyrosulfite Purification In Chloroform Na2S2O5 98% Purity

    • 97% Purity Tech Grade Sodium Pyrosulfite Purification In Chloroform Na2S2O5 98% Purity
    • 97% Purity Tech Grade Sodium Pyrosulfite Purification In Chloroform Na2S2O5 98% Purity
  • 97% Purity Tech Grade Sodium Pyrosulfite Purification In Chloroform Na2S2O5 98% Purity

    Product Details:

    Place of Origin: Hunan
    Brand Name: OEM
    Certification: SGS,ISO 9001
    Model Number: sodium pyrosulfite-c5

    Payment & Shipping Terms:

    Minimum Order Quantity: 1 metric ton
    Price: usd 300 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: Purification In Chloroform Sodium Pyrosulfite Other Name: Purification In Chloroform Sodium Metabisulfite
    Grade: Industrial Grade Usage: Purification In Chloroform
    Packing: 500kg; 1,000kg; 1,100kg Bulk Sacks Purity: Na2S2O5 98%

    Sodium metabisulfite/Sodium Pyrosulfite tech grade


    Specifications: Industrial Grade (0.001%=10ppm)



    Product Name: Sodium Metabisulfite Grade: Food
    Chemical Formula: Na2S2O5 Molecular Weight: 190.1
    CAS Number: 7681-57-4 UN No.: N/A
    Hazard Classification: N/A Lot No.: 20130902
    Quantity: 24MT Issued Date: 2013-9-2
    Product Description: White Powder Manufacture Date: 2013-9-2
    Expirty Date: 2014-9-1    
    Items Specifications: Test Results Unit
    Purity(Na2S2O5) 96.5Min 97.3 %
    SO2 65Min 65.6 %
    PH Value (5%) 4.0-4.6 4.5  
    Water insoluble 0.05Max 0.03 %
    Iron(Fe) 30Max 15 PPM
    Arsenic 1Max 1 PPM
    Heavy Metal (Pb) 5Max 5 PPM


    Sanitization and cleaning agent

    It is commonly used in homebrewing and winemaking to sanitize equipment. It is used as a cleaning agent for potable water reverse osmosis membranes indesalination systems. It is also used to remove chloramine from drinking water after treatment.

    Chemical properties

    When mixed with water, sodium metabisulfite releases sulfur dioxide (SO2), a pungent, unpleasant smelling gas that can also cause breathing difficulties in some people. For this reason, sodium metabisulfite has fallen from common use in recent times, with agents such as hydrogen peroxide becoming more popular for effective and odorless sterilization of equipment. Released sulfur dioxide however makes the water a strong reducing agent.
    Sodium metabisulfite releases sulfur dioxide in contact with strong acids:
    Na2S2O5 + 2 HCl → 2 NaCl + H2O + 2 SO2
    On heating to high temperature, it releases sulfur dioxide, leaving sodium sulfite behind:[11]
    Na2S2O5 → Na2SO3 + SO2


    Food additive

    It is used as a preservative and antioxidant in food and is also known as E223.[4]
    It may cause allergic reactions in those who are sensitive to sulfites, including respiratory reactions in asthmatics, anaphylaxis and other allergic reactions in sensitive individuals.[5][6]
    Sodium metabisulfite and potassium metabisulfite are the primary ingredients in Campden tablets, used for wine and beer making.[7]
    The acceptable daily intake is up to 0.7 milligrams per kilogram of body weight.[8] Sodium metabisulfite oxidizes in the liver to sulfate which is excreted in the urine.[8]
    Sodium metabisulfite or sodium pyrosulfite (IUPAC spelling; Br. E. sodium metabisulphite or sodium pyrosulphite) is an inorganic compound of chemical formula Na2S2O5. The substance is sometimes referred to as disodium metabisulfite. It is used as a disinfectant, antioxidant and preservativeagent.


    Other uses

    Added to local anaesthetic (lidocaine etc.) solutions to prevent oxidation of vasoconstrictor adrenaline and thus improve the shelf life of the solution[citation needed]
    It is used in photography.[9]
    Concentrated sodium metabisulfite can be used to remove tree stumps. Some brands contain 98% sodium metabisulfite, and cause degradation of lignin in the stumps, facilitating removal.[10]
    It is also used as an excipient in some tablets, such as paracetamol. Approximately 0.5 mg is used in epinephrine autoinjectors such as the EpiPen.
    A very important health related aspect of this substance is that it can be added to a blood smear in a test for sickle cell anaemia (and other similar forms of haemoglobin mutation). The substances causes defunct cells to sickle (through a complex polymerisation) hence confirming disease.
    It is used as the source of SO2 in wine. An important anti-oxidant and bactericide
    It is also used to precipitate gold from auric acid (gold dissolved in aqua regia).
    It is used in waste treatment to chemically reduce hexavalent chromium to trivalent chromium which can then be precipitated and removed from an aqueous waste stream.
    It is used as a bleaching agent in the production of Coconut cream
    It is used as a reducing agent to break sulfide bonds in shrunken items of clothing made of natural fibers, thus allowing the garment to go back to its original shape after washing
    It is used as an SO2 source (mixed with air or oxygen) for the destruction of cyanide in commercial gold cyanidation processes.
    It is used in the oil and gas industry as a corrosion inhibitor/oxygen scavenger.
    It is used in the water treatment industry to quench chlorine residual




    97% Purity Tech Grade Sodium Pyrosulfite Purification In Chloroform Na2S2O5 98% Purity

    Contact Details

    Contact Person: Ms.xie

    Tel: +8613975090964

    Send your inquiry directly to us (0 / 3000)

    Other Products