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Home ProductsSodium Sulfite Food Grade

Vegetable fruit Preservative Sodium Sulfite white powder Food Grade SSA 24 Months Shelf Life

Vegetable fruit Preservative Sodium Sulfite white powder Food Grade SSA 24 Months Shelf Life

    • Vegetable fruit Preservative Sodium Sulfite white powder Food Grade SSA 24 Months Shelf Life
    • Vegetable fruit Preservative Sodium Sulfite white powder Food Grade SSA 24 Months Shelf Life
    • Vegetable fruit Preservative Sodium Sulfite white powder Food Grade SSA 24 Months Shelf Life
  • Vegetable fruit Preservative Sodium Sulfite white powder Food Grade SSA 24 Months Shelf Life

    Product Details:

    Place of Origin: Hunan
    Brand Name: Kemsky
    Certification: ISO 9001 SGS
    Model Number: vegetable preservative 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: Vegetable Preservative Sodium Sulfite Other Name: Anhydrous Sodium Sulphite Vegetable Preservative
    Shelf Life: 24 Months Usage: Preservative For Vegetable And Fruit
    Packing: 25 Kgs Plastic Woven Bag CAS NO: 7757-83-7

     

    SODIUM SULPHITE

    SODIUM SULFITE ANHYDROUS

    FOOD AND TECH GRADE

    PRESERVATIVE FOR VEGETABLE AND FRUIT

     

     

    96% Anhydrous Sodium Sulfite Na2SO3
    1,Stable quality and reasonable price
    2,Hot-sell in the global market
    3,SGS,BV,CIQ.

    96% Anhydrous Sodium Sulfite Na2SO3

     

    Appearance: white crystal or powder
    Density (g/cm3): 1.561
    Solubility: Soluble in water, water solution is alkaline. indissolvable in ethanol
    Specification:

     

    ITEMS Premium grade
      Super grade First grade Salable product
    Sodium sulfite ( Na2SO3 ) , % ≥ 97.0 96.0 93.0
    Fe , ≤ 0.003 0.005 0.01
    Water insoluble matter , % ≤ 0.02 0.03 0.05
    Free alkali ( as Na2SO3 ) , % ≤ 0.10 0.40 0.60
    Na2SO4 , % ≤ 2.50 / /
    NaCl , % ≤ 0.10 /

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    Application:Used in artificial fiber stabilizer, fabric bleach, photographic contrast extravasation, dye bleaching deoxidizer, spices and dye reductant, paper lignin removal agent.

    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

     
     

    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.

     

     

    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
     

     

     

    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
     

     

     

     

    When producing Sodium sodium metabisulfite(SMBS), during the manufacture process there is SO2 gas can come from sulphur, pyrite, hydrogen sulfide incineration or other tail gas problem and waste treatment control .

     

     

    Vegetable fruit Preservative Sodium Sulfite white powder Food Grade SSA 24 Months Shelf Life

    Contact Details
    NINGBO SOURCECHEM CO.,LTD

    Contact Person: Ms.xie

    Tel: +8613975090964

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