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Sodium sulfite

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Origin: China

Cas No: 7757-83-7

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 80 mt/month

Lead time: 7 days for OEM, 3 days for ready goods

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  • Products Specification
  • Product Description

  • Quick Details

    CAS No.:
    7757-83-7
    Other Names:
    Sodium sulfite anhydrous
    MF:
    Na2SO3
    EINECS No.:
    231-821-4
    Place of Origin:
    Shandong, China
    Type:
    Agrochemical Intermediates
    Purity:
    99%
    Brand Name:
    Finerchem
    Model Number:
    7757-83-7
    Application:
    Organic Intermediate
    Appearance:
    White powder
    Product name:
    Sodium sulfite
    CAS:
    7757-83-7
    Appearence:
    White powder
    Molecular formula:
    Na2SO3
    Molecular Weight:
    126.04

    Packaging&Delivery

    Packaging Details
    Aluminum foil bag for within 10kg
    Fiber drum for 10kg and more
    Shipping: By air, by sea or by courier (VIP account of TNT, DHL, Fedex and EMS)
    Port
    Qingdao or Shanghai
    Lead Time:
    Quantity(Kilograms)1 - 1>1
    Est. Time(days)2To be negotiated

  • Property

    CAS No.: 7757-83-7 Formula: Na2O3S Molecular Weight: 126.04300

    Description

    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 photography and for reducing chlorine levels in pools.

    Basic Info

    Chemical Name Sodium sulfite
    Synonyms

    anhydrous sodium sulphite;
    Natrii sulphis;
    Sodium sulphite;
    Sodium sulfite anhydrous;
    disodium,sulfite;
    Sulftech;
    SODIUM SULFITE;
    Sulfurous acid,disodium salt;
    Sodium sulfite solution;
    Disodium sulfite;
    Natrium sulfurosum;
    sodium sulphite powder;

    CAS No. 7757-83-7
    Molecular Formula Na2O3S
    Molecular Weight 126.04300
    PSA 82.40000
    LogP -0.13840

    Properties

    Appearance & Physical State white crystals or powder
    Density 2.633
    Melting Point 500ºC
    Refractive Index 1.484
    Water Solubility 23 g/100 mL (20 ºC)
    Stability Stable. Incompatible with strong acids. Moisture and air sensitive.
    Storage Condition Store at RT.

    Safety Info

    RTECS WE2150000
    Safety Statements S24/25
    HS Code 2832100000
    WGK Germany 1
    Risk Statements R22; R36/37/38
    Hazard Codes Xn
    Supplemental Hazard Statements Contact with acids liberates toxic gas.

    Synthesis Route

    sodium sulfate→Sodium sulfite
    sulfur dioxide+sodium carbonate→Sodium sulfite
    sodium hydroxide→Sodium sulfite

    Precursor

    sodium carbonate
    sodium sulfate
    sulfur dioxide
    Ammonia

    Downstream Product

    4-bromo-2,6-dichlorophenol
    2-bromo-2,2-difluoroacetic acid
    N,N-Dicyclohexyl-2-benzothiazolsulfene amide
    2,5-dihydroxybenzenesulfonic acid

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