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Home ProductsSodium Sulfite Food Grade

Cas No 7757 83 7 Sodium Sulfite Food Grade Na2SO3 97% Purity For Pharmaceutical Industry

Cas No 7757 83 7 Sodium Sulfite Food Grade Na2SO3 97% Purity For Pharmaceutical Industry

    • Cas No 7757 83 7 Sodium Sulfite Food Grade Na2SO3 97% Purity For Pharmaceutical Industry
    • Cas No 7757 83 7 Sodium Sulfite Food Grade Na2SO3 97% Purity For Pharmaceutical Industry
  • Cas No 7757 83 7 Sodium Sulfite Food Grade Na2SO3 97% Purity For Pharmaceutical Industry

    Product Details:

    Place of Origin: Hunan
    Brand Name: Kemsky
    Certification: ISO 9001
    Model Number: antioxidant sodium sulfite

    Payment & Shipping Terms:

    Minimum Order Quantity: 1 metric ton
    Price: usd 430 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
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    Detailed Product Description
    Name: Antioxidant Sodium Sulfite SSA Other Name: Antioxidant Anhydrous Sodium Sulphite
    Hs Code: 28321000 Usage: Fruit Preservative,antioxidant, Food Grade
    Packing: 25 Kgs Plastic Woven Bag CAS NO: 7757-83-7

     

    SODIUM SULPHITE

    SODIUM SULFITE ANHYDROUS

     

     

    1. Grade Food grade
    2. Purity 97%
    3.Molecular formula Na2SO3
    5. CAS No 7757-83-7
    6. HS CODE 28321000
    7. EINECS No 231-821-4
     

    Packing : External packing is PP woven bag, Internal packing is PE bag,25 kgs, 50 kgs, 1000 kgs, and 1250 kgs bag packing.

    Storage & defence: Stored in cool and dry place, avoid moisture and heat. No breakage, No mixed with oxidant and toxic matter. The storage period is 6 month since the production date. It should be transported by clean car, with covering matter, avoid rain.

     

    Usage:

    The role of anhydrous sodium sulfite is extensive, it is in the pharmaceutical industry, paper making, leather tanning and dyeing industries and plant fiber bleaching, food, etc have a very important role. Addition of anhydrous sodium sulfite is also used to film developing, bleaching agents, printing and dyeing industry as a deoxygenation agent.

     

    Physical and chemical properties:
    White crystalline or powder form; triangular prism crystal shape; alkaline water solution with pH at 9 – 9.5; The highest water solubility is about 28% with temperature at 33.4°C. When exposed to air, it is oxidized to form sodium sulfate. When heated to high temperature, it decomposes to form sodium sulfide; Density: 2.633(15.4°C), Refractive Index: 1.565; Molecular Weight: 126.04.

     

    Chemical Properties

     

    melting point 500 °C
    density 2.63
    refractive index 1,484
    storage temp. Store at RT.
    solubility H2O: 1 M at 20 °C, clear, colorless
    Water Solubility 23 g/100 mL (20 ºC)
    Sensitive Hygroscopic
    Stability Stable. Incompatible with strong acids. Moisture and air sensitive.

    Technical specification

    Specification

    Index name

    Analytically pure-AR Chemical pure-CP High purity
    Content(Na2SO3) ≥97.0 ≥95.0 ≥96.0
    Clarity test Qualified Qualified  
    Water insoluble ≤0.005 ≤0.01 ≤0.03
    Sulphurous acid( counted by Na2HSO3 ) Qualified Qualified  
    Free alkali( counted by Na2CO3 ) ≤0.1 ≤0.3 ≤0.5
    Chloride(Cl) ≤0.005 ≤0.02 ≤0.05
    Thiosulfuric acid(S2O3) ≤0.01 ≤0.02 ≤0.04
    Ferrum(Fe) ≤0.0005 ≤0.002 ≤0.003
    Heavy metal(counted by Pb) ≤0.001 ≤0.002 ≤0.003
    Arsenic(As) ≤0.0001 ≤0.0005 ≤0.001
     

     

    Application:
    It is used in dyeing industry as deoxidizer and bleaching agent for a variety of cotton fabric treating and scouring, which can prevent fabrics from local oxidation and deterioration of fibre strength. In photographic industry it is used as a reagent. In organic industry it is used as reducing agent in production of m-phenylenediamine, 25 - bared oxazolone, amino salicylic acid, etc. Textile industry uses it as a stabilizer for synthetic fibre. Other applications include various uses in paper mills, electronic industry, water treatment, etc.

    Nature:

    White crystal or powder; no foul. Soluble in water, very slightly soluble in ethanol, almost insoluble in ether. White hexagonal prismatic crystals, soluble in water (0 ℃ 12.54g/100ml water; 80 ℃ when the 283g/100ml water), in 33.4 ℃ The maximum solubility of about 28% when the aqueous solution is alkaline, PH value is about 9 ~ 9.5 . Slightly soluble in alcohol, insoluble in liquid chlorine, ammonia. Easily oxidized in air sodium, when the temperature is decomposed into sodium sulfide. To strengthen the reducing agent, reacts with sulfur dioxide, sodium bisulfite, reacted with the acid salt.

    Details

    Basic information

    Product Name: Sodium sulfite
    Synonyms: Sodium sulfite anhydrous;SODIUM SULFITE, EXSICCATED;SODIUM SULPHITE;anhydroussodiumsulfite;disodiumsulfite;exsiccatedsodiumsulfite;natriisulphis;natriumsulfid
    CAS: 7757-83-7
    MF: Na2O3S
    MW: 126.04
    Product Categories: Inorganic Chemicals;Inorganics;Water Ttreatment Chemicals;Analytical Reagents for General Use;Disulfide Bridge Cleavage Reagents;Denaturation;Synthetic Reagents;ACS GradeBiochemicals and Reagents;Synthetic Reagents;inorganic compound;Paper, glass, printing and dyeing
    Mol File: 7757-83-7.mol

     

     

    Superiority

    1, High quality with competitive price:

    We are manufacturer and can provide high quality products with factory price.

    2, Fast and safe delivery

    1) Parcels can be sent out within 24 hours after payment. Tracking number is available.

    2) Secure and discreet shipment. You have various choices of transportation methods.

    3, We have clients throughout the world.

    1) Professional service and rich experience make customers feel at ease, adequate stock and fast delivery meet your desire.

    2) Market feedback and goods feedback are appreciated, meeting customers's requirement is our responsibility.

    3) High quality, competitive price, fast delivery, first-class service gain the trust and praise from the customers.

     

     

    Specification:

    Anhydyous sodium sulphite
    English name Anhydyous sodium sulphite
    Molecular formula Na2SO3
    Technical specifications High purity grade Refined grade Photographic grade Industrial grade Industrial grade Industrial grade
    Sodium sulfite Sodium sulfite Sodium sulfite High-class product High-class product First grade product
    Na2SO3 ≥ % 98 98 97 98 97 96
    Fe ≤ % 0.0005 0.002 0.005 0.003 0.003 0.005
    Water insoluble ≤ % 0.005 0.01 0.05 0.02 0.02 0.03
    Free alkali ≤ % 0.1 0.3 0.15 0.1 0.1 0.4
    Sodium sulfate ≤ % 1.5 1.5 1.5 2.5
    Sodium chloride ≤ % 0.005 0.02 0.01 0.1
    Heavy metal on Pb≤ % 0.001 0.002 0.002
    As ≤ % 0.0001 0.0005
    Sodium thiosulfate ≤% 0.01 0.02 0.03
    Aqueous solution appearance Qualified Qualified Qualified
    Reaction of silver nitrate ammonia solution Qualified
     

     

     

     

     

    Cas No 7757 83 7 Sodium Sulfite Food Grade Na2SO3 97% Purity For Pharmaceutical Industry

    Contact Details
    NINGBO SOURCECHEM CO.,LTD

    Contact Person: Ms.xie

    Tel: +8613975090964

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